(errcode(ERRCODE_WRONG_OBJECT_TYPE),
errmsg("cannot get raw page from composite type \"%s\"",
RelationGetRelationName(rel))));
+ if (rel->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("cannot get raw page from foreign table \"%s\"",
+ RelationGetRelationName(rel))));
/*
* Reject attempts to read non-local temporary relations; we would be
case RELKIND_COMPOSITE_TYPE:
err = "composite type";
break;
+ case RELKIND_FOREIGN_TABLE:
+ err = "foreign table";
+ break;
default:
err = "unknown";
break;
<entry>foreign server definitions</entry>
</row>
+ <row>
+ <entry><link linkend="catalog-pg-foreign-table"><structname>pg_foreign_table</structname></link></entry>
+ <entry>additional foreign table information</entry>
+ </row>
+
<row>
<entry><link linkend="catalog-pg-index"><structname>pg_index</structname></link></entry>
<entry>additional index information</entry>
<entry>
<literal>r</> = ordinary table, <literal>i</> = index,
<literal>S</> = sequence, <literal>v</> = view, <literal>c</> =
- composite type, <literal>t</> = TOAST
- table
+ composite type, <literal>t</> = TOAST table,
+ <literal>f</> = foiregn table
</entry>
</row>
</entry>
</row>
+ <row>
+ <entry><structfield>fdwhandler</structfield></entry>
+ <entry><type>oid</type></entry>
+ <entry><literal><link linkend="catalog-pg-proc"><structname>pg_proc</structname></link>.oid</literal></entry>
+ <entry>
+ References a handler function that is responsible for
+ supplying foreign-data wrapper routines.
+ Zero if no handler is provided.
+ </entry>
+ </row>
+
<row>
<entry><structfield>fdwacl</structfield></entry>
<entry><type>aclitem[]</type></entry>
</sect1>
+ <sect1 id="catalog-pg-foreign-table">
+ <title><structname>pg_foreign_table</structname></title>
+
+ <indexterm zone="catalog-pg-foreign-table">
+ <primary>pg_foreign_table</primary>
+ </indexterm>
+
+ <para>
+ The catalog <structname>pg_foreign_table</structname> contains part
+ of the information about foreign tables.
+ The rest is mostly in <structname>pg_class</structname>.
+ </para>
+
+ <table>
+ <title><structname>pg_foreign_table</> Columns</title>
+
+ <tgroup cols="4">
+ <thead>
+ <row>
+ <entry>Name</entry>
+ <entry>Type</entry>
+ <entry>References</entry>
+ <entry>Description</entry>
+ </row>
+ </thead>
+
+ <tbody>
+ <row>
+ <entry><structfield>ftrelid</structfield></entry>
+ <entry><type>oid</type></entry>
+ <entry><literal><link linkend="catalog-pg-class"><structname>pg_class</structname></link>.oid</literal></entry>
+ <entry>The OID of the <structname>pg_class</> entry for this foreign table</entry>
+ </row>
+
+ <row>
+ <entry><structfield>ftserver</structfield></entry>
+ <entry><type>oid</type></entry>
+ <entry><literal><link linkend="catalog-pg-foreign-server"><structname>pg_foreign_server</structname></link>.oid</literal></entry>
+ <entry>The OID of the foreign server for this foreign table</entry>
+ </row>
+
+ <row>
+ <entry><structfield>srvoptions</structfield></entry>
+ <entry><type>text[]</type></entry>
+ <entry></entry>
+ <entry>
+ Foreign table specific options, as <quote>keyword=value</> strings.
+ </entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </sect1>
+
+
<sect1 id="catalog-pg-index">
<title><structname>pg_index</structname></title>
</table>
</sect1>
+ <sect1 id="infoschema-foreign-table-options">
+ <title><literal>foreign_table_options</literal></title>
+
+ <para>
+ The view <literal>foreign_table_options</literal> contains all the
+ options defined for foreign tables in the current database. Only
+ those foreign tables are shown that the current user has access to
+ (by way of being the owner or having some privilege).
+ </para>
+
+ <table>
+ <title><literal>foreign_table_options</literal> Columns</title>
+
+ <tgroup cols="3">
+ <thead>
+ <row>
+ <entry>Name</entry>
+ <entry>Data Type</entry>
+ <entry>Description</entry>
+ </row>
+ </thead>
+
+ <tbody>
+ <row>
+ <entry><literal>foreign_table_catalog</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the database that contains the foreign table (always the current database)</entry>
+ </row>
+
+ <row>
+ <entry><literal>foreign_table_schema</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the schema that contains the foreign table</entry>
+ </row>
+
+ <row>
+ <entry><literal>foreign_table_name</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the foreign table</entry>
+ </row>
+
+ <row>
+ <entry><literal>foreign_server_catalog</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the database that the foreign server is defined in (always the current database)</entry>
+ </row>
+
+ <row>
+ <entry><literal>foreign_server_name</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the foreign server</entry>
+ </row>
+
+ <row>
+ <entry><literal>option_name</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of an option</entry>
+ </row>
+
+ <row>
+ <entry><literal>option_value</literal></entry>
+ <entry><type>character_data</type></entry>
+ <entry>Value of the option</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </sect1>
+
+ <sect1 id="infoschema-foreign-tables">
+ <title><literal>foreign_tables</literal></title>
+
+ <para>
+ The view <literal>foreign_tables</literal> contains all foreign
+ tables defined in the current database. Only those foreign
+ tables are shown that the current user has access to (by way of
+ being the owner or having some privilege).
+ </para>
+
+ <table>
+ <title><literal>foreign_tables</literal> Columns</title>
+
+ <tgroup cols="3">
+ <thead>
+ <row>
+ <entry>Name</entry>
+ <entry>Data Type</entry>
+ <entry>Description</entry>
+ </row>
+ </thead>
+
+ <tbody>
+ <row>
+ <entry><literal>foreign_table_catalog</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the database that the foreign table is defined in (always the current database)</entry>
+ </row>
+
+ <row>
+ <entry><literal>foreign_table_schema</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the schema that contains the foreign table</entry>
+ </row>
+
+ <row>
+ <entry><literal>foreign_table_name</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the foreign table</entry>
+ </row>
+
+ <row>
+ <entry><literal>foreign_server_catalog</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the database that the foreign server is defined in (always the current database)</entry>
+ </row>
+
+ <row>
+ <entry><literal>foreign_server_name</literal></entry>
+ <entry><type>sql_identifier</type></entry>
+ <entry>Name of the foreign server</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </sect1>
+
<sect1 id="infoschema-key-column-usage">
<title><literal>key_column_usage</literal></title>
<entry>
Type of the table: <literal>BASE TABLE</literal> for a
persistent base table (the normal table type),
- <literal>VIEW</literal> for a view, or <literal>LOCAL
- TEMPORARY</literal> for a temporary table
+ <literal>VIEW</literal> for a view, <literal>FOREIGN TABLE</literal>
+ for a foreign table, or
+ <literal>LOCAL TEMPORARY</literal> for a temporary table
</entry>
</row>
<!entity alterDefaultPrivileges system "alter_default_privileges.sgml">
<!entity alterDomain system "alter_domain.sgml">
<!entity alterForeignDataWrapper system "alter_foreign_data_wrapper.sgml">
+<!entity alterForeignTable system "alter_foreign_table.sgml">
<!entity alterFunction system "alter_function.sgml">
<!entity alterGroup system "alter_group.sgml">
<!entity alterIndex system "alter_index.sgml">
<!entity createDatabase system "create_database.sgml">
<!entity createDomain system "create_domain.sgml">
<!entity createForeignDataWrapper system "create_foreign_data_wrapper.sgml">
+<!entity createForeignTable system "create_foreign_table.sgml">
<!entity createFunction system "create_function.sgml">
<!entity createGroup system "create_group.sgml">
<!entity createIndex system "create_index.sgml">
<!entity dropDatabase system "drop_database.sgml">
<!entity dropDomain system "drop_domain.sgml">
<!entity dropForeignDataWrapper system "drop_foreign_data_wrapper.sgml">
+<!entity dropForeignTable system "drop_foreign_table.sgml">
<!entity dropFunction system "drop_function.sgml">
<!entity dropGroup system "drop_group.sgml">
<!entity dropIndex system "drop_index.sgml">
<command>ALTER DEFAULT PRIVILEGES</> allows you to set the privileges
that will be applied to objects created in the future. (It does not
affect privileges assigned to already-existing objects.) Currently,
- only the privileges for tables (including views), sequences, and
- functions can be altered.
+ only the privileges for tables (including views and foreign tables),
+ sequences, and functions can be altered.
</para>
<para>
<synopsis>
ALTER FOREIGN DATA WRAPPER <replaceable class="parameter">name</replaceable>
[ VALIDATOR <replaceable class="parameter">valfunction</replaceable> | NO VALIDATOR ]
+ [ HANDLER <replaceable class="parameter">handler</replaceable> | NO HANDLER ]
[ OPTIONS ( [ ADD | SET | DROP ] <replaceable class="PARAMETER">option</replaceable> ['<replaceable class="PARAMETER">value</replaceable>'] [, ... ]) ]
ALTER FOREIGN DATA WRAPPER <replaceable class="parameter">name</replaceable> OWNER TO <replaceable>new_owner</replaceable>
</synopsis>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><literal>HANDLER <replaceable class="parameter">handler</replaceable></literal></term>
+ <listitem>
+ <para>
+ Specifies a new foreign-data wrapper handler function.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>NO HANDLER</literal></term>
+ <listitem>
+ <para>
+ This is used to specify that the foreign-data wrapper should no
+ longer have a handler function.
+ </para>
+ <para>
+ Note that foreign tables which uses a foreign-data wrapper with no
+ handler can't be used in a SELECT statement.
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><literal>OPTIONS ( [ ADD | SET | DROP ] <replaceable class="PARAMETER">option</replaceable> ['<replaceable class="PARAMETER">value</replaceable>'] [, ... ] )</literal></term>
<listitem>
<para>
<command>ALTER FOREIGN DATA WRAPPER</command> conforms to ISO/IEC
9075-9 (SQL/MED). The standard does not specify the <literal>
- VALIDATOR</literal> and <literal>OWNER TO</> variants of the
- command.
+ VALIDATOR</literal>, <literal>HANDLER</> and <literal>OWNER TO</>
+ variants of the command.
</para>
</refsect1>
--- /dev/null
+<!--
+doc/src/sgml/rel/alter_foreign_table.sgml
+PostgreSQL documentation
+-->
+
+<refentry id="SQL-ALTERFOREIGNTABLE">
+ <refmeta>
+ <refentrytitle>ALTER FOREIGN TABLE</refentrytitle>
+ <manvolnum>7</manvolnum>
+ <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+ <refname>ALTER FOREIGN TABLE</refname>
+ <refpurpose>change the definition of a foreign table</refpurpose>
+ </refnamediv>
+
+ <indexterm zone="sql-alterforeigntable">
+ <primary>ALTER FOREIGN TABLE</primary>
+ </indexterm>
+
+ <refsynopsisdiv>
+<synopsis>
+ALTER FOREIGN TABLE <replaceable class="PARAMETER">name</replaceable> [ * ]
+ <replaceable class="PARAMETER">action</replaceable> [, ... ]
+ALTER FOREIGN TABLE <replaceable class="PARAMETER">name</replaceable> [ * ]
+ RENAME [ COLUMN ] <replaceable class="PARAMETER">column</replaceable> TO <replaceable class="PARAMETER">new_column</replaceable>
+ALTER FOREIGN TABLE <replaceable class="PARAMETER">name</replaceable>
+ RENAME TO <replaceable class="PARAMETER">new_name</replaceable>
+ALTER FOREIGN TABLE <replaceable class="PARAMETER">name</replaceable>
+ SET SCHEMA <replaceable class="PARAMETER">new_schema</replaceable>
+
+<phrase>where <replaceable class="PARAMETER">action</replaceable> is one of:</phrase>
+
+ ADD [ COLUMN ] <replaceable class="PARAMETER">column</replaceable> <replaceable class="PARAMETER">type</replaceable> [ <replaceable class="PARAMETER">column_constraint</replaceable> [ ... ] ]
+ DROP [ COLUMN ] [ IF EXISTS ] <replaceable class="PARAMETER">column</replaceable> [ RESTRICT | CASCADE ]
+ ALTER [ COLUMN ] <replaceable class="PARAMETER">column</replaceable> [ SET DATA ] TYPE <replaceable class="PARAMETER">type</replaceable>
+ ALTER [ COLUMN ] <replaceable class="PARAMETER">column</replaceable> { SET | DROP } NOT NULL
+ ALTER [ COLUMN ] <replaceable class="PARAMETER">column</replaceable> OPTIONS ( [ ADD | SET | DROP ] <replaceable class="PARAMETER">option</replaceable> ['<replaceable class="PARAMETER">value</replaceable>'] [, ... ])
+ ADD <replaceable class="PARAMETER">table_constraint</replaceable>
+ DROP CONSTRAINT [ IF EXISTS ] <replaceable class="PARAMETER">constraint_name</replaceable> [ RESTRICT | CASCADE ]
+ INHERIT <replaceable class="PARAMETER">parent_table</replaceable>
+ NO INHERIT <replaceable class="PARAMETER">parent_table</replaceable>
+ OWNER TO <replaceable class="PARAMETER">new_owner</replaceable>
+ OPTIONS ( [ ADD | SET | DROP ] <replaceable class="PARAMETER">option</replaceable> ['<replaceable class="PARAMETER">value</replaceable>'] [, ... ])
+</synopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>
+ <command>ALTER FOREIGN TABLE</command> changes the definition of an existing table.
+ There are several subforms:
+
+ <variablelist>
+ <varlistentry>
+ <term><literal>ADD COLUMN</literal></term>
+ <listitem>
+ <para>
+ This form adds a new column to the foreign table, using the same syntax as
+ <xref linkend="SQL-CREATEFOREIGNTABLE">.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>DROP COLUMN [ IF EXISTS ]</literal></term>
+ <listitem>
+ <para>
+ This form drops a column from a foreign table.
+ Table constraints involving the column will be automatically
+ dropped as well. You will need to say <literal>CASCADE</> if
+ anything outside the table depends on the column, for example,
+ views.
+ If <literal>IF EXISTS</literal> is specified and the column
+ does not exist, no error is thrown. In this case a notice
+ is issued instead.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>SET DATA TYPE</literal></term>
+ <listitem>
+ <para>
+ This form changes the type of a column of a foreign table.
+ Simple table constraints involving the column will be automatically
+ converted to use the new column type by reparsing the originally
+ supplied expression. The optional <literal>USING</literal>
+ clause specifies how to compute the new column value from the old;
+ if omitted, the default conversion is the same as an assignment
+ cast from old data type to new. A <literal>USING</literal>
+ clause must be provided if there is no implicit or assignment
+ cast from old to new type.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>SET</literal>/<literal>DROP NOT NULL</literal></term>
+ <listitem>
+ <para>
+ These forms change whether a column is marked to allow null
+ values or to reject null values. You can only use <literal>SET
+ NOT NULL</> when the column contains no null values.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>ADD <replaceable class="PARAMETER">table_constraint</replaceable></literal></term>
+ <listitem>
+ <para>
+ This form adds a new constraint to a foreign table using the same syntax as
+ <xref linkend="SQL-CREATETABLE">.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>DROP CONSTRAINT [ IF EXISTS ]</literal></term>
+ <listitem>
+ <para>
+ This form drops the specified constraint on a foreign table.
+ If <literal>IF EXISTS</literal> is specified and the constraint
+ does not exist, no error is thrown. In this case a notice is issued instead.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>INHERIT <replaceable class="PARAMETER">parent_table</replaceable></literal></term>
+ <listitem>
+ <para>
+ This form adds the target table as a new child of the specified parent
+ table. Subsequently, queries against the parent will include records
+ of the target table. To be added as a child, the target table must
+ already contain all the same columns as the parent (it could have
+ additional columns, too). The columns must have matching data types,
+ and if they have <literal>NOT NULL</literal> constraints in the parent
+ then they must also have <literal>NOT NULL</literal> constraints in the
+ child.
+ </para>
+
+ <para>
+ There must also be matching child-table constraints for all
+ <literal>CHECK</literal> constraints of the parent.
+ </para>
+
+ <para>
+ The parent must not have OIDs because foreign table can't have OIDs.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>NO INHERIT <replaceable class="PARAMETER">parent_table</replaceable></literal></term>
+ <listitem>
+ <para>
+ This form removes the target table from the list of children of the
+ specified parent table.
+ Queries against the parent table will no longer include records drawn
+ from the target table.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>OWNER</literal></term>
+ <listitem>
+ <para>
+ This form changes the owner of the foreign table to the
+ specified user.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>RENAME</literal></term>
+ <listitem>
+ <para>
+ The <literal>RENAME</literal> forms change the name of a foreign table
+ or the name of an individual column in
+ a foreign table. There is no effect on the stored data.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>SET SCHEMA</literal></term>
+ <listitem>
+ <para>
+ This form moves the foreign table into another schema. Associated
+ constraints owned by table columns are moved as well.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>OPTIONS ( [ ADD | SET | DROP ] <replaceable class="PARAMETER">option</replaceable> ['<replaceable class="PARAMETER">value</replaceable>'] [, ... ] )</literal></term>
+ <listitem>
+ <para>
+ Change options for the foreign table or the column of the foreign table.
+ <literal>ADD</>, <literal>SET</>, and <literal>DROP</>
+ specify the action to be performed. <literal>ADD</> is assumed
+ if no operation is explicitly specified. Option names must be
+ unique; names and values are also validated using the foreign
+ data wrapper library.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ </variablelist>
+ </para>
+
+ <para>
+ All the actions except <literal>RENAME</literal> and <literal>SET SCHEMA</>
+ can be combined into
+ a list of multiple alterations to apply in parallel. For example, it
+ is possible to add several columns and/or alter the type of several
+ columns in a single command. This is particularly useful with large
+ foreign tables, since only one pass over the table need be made.
+ </para>
+
+ <para>
+ You must own the table to use <command>ALTER FOREIGN TABLE</>.
+ To change the schema of a foreign table, you must also have
+ <literal>CREATE</literal> privilege on the new schema.
+ To add the table as a new child of a parent table, you must own the
+ parent table as well.
+ To alter the owner, you must also be a direct or indirect member of the new
+ owning role, and that role must have <literal>CREATE</literal> privilege on
+ the table's schema. (These restrictions enforce that altering the owner
+ doesn't do anything you couldn't do by dropping and recreating the table.
+ However, a superuser can alter ownership of any table anyway.)
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Parameters</title>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">name</replaceable></term>
+ <listitem>
+ <para>
+ The name (possibly schema-qualified) of an existing table to
+ alter. If <literal>ONLY</> is specified, only that table is
+ altered. If <literal>ONLY</> is not specified, the table and any
+ descendant foreign tables are altered.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">column</replaceable></term>
+ <listitem>
+ <para>
+ Name of a new or existing column.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">new_column</replaceable></term>
+ <listitem>
+ <para>
+ New name for an existing column.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">new_name</replaceable></term>
+ <listitem>
+ <para>
+ New name for the table.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">type</replaceable></term>
+ <listitem>
+ <para>
+ Data type of the new column, or new data type for an existing
+ column.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">table_constraint</replaceable></term>
+ <listitem>
+ <para>
+ New table constraint for the table.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">constraint_name</replaceable></term>
+ <listitem>
+ <para>
+ Name of an existing constraint to drop.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>CASCADE</literal></term>
+ <listitem>
+ <para>
+ Automatically drop objects that depend on the dropped column
+ or constraint (for example, views referencing the column).
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>RESTRICT</literal></term>
+ <listitem>
+ <para>
+ Refuse to drop the column or constraint if there are any dependent
+ objects. This is the default behavior.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">storage_parameter</replaceable></term>
+ <listitem>
+ <para>
+ The name of a foreign table storage parameter.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">value</replaceable></term>
+ <listitem>
+ <para>
+ The new value for a foreign table storage parameter.
+ This might be a number or a word depending on the parameter.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">parent_table</replaceable></term>
+ <listitem>
+ <para>
+ A parent table to associate or de-associate with this table.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">new_owner</replaceable></term>
+ <listitem>
+ <para>
+ The user name of the new owner of the table.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">new_schema</replaceable></term>
+ <listitem>
+ <para>
+ The name of the schema to which the table will be moved.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>
+ The key word <literal>COLUMN</literal> is noise and can be omitted.
+ </para>
+
+ <para>
+ Consistency with the foreign server is not checked even when a column is
+ added or removed with <literal>ADD COLUMN</literal> or
+ <literal>DROP COLUMN</literal>, a system <literal>oid</> column is added
+ or removed, a <literal>CHECK</> or <literal>NOT NULL</> constraint is
+ added, or column type is changed with <literal>ALTER TYPE</>.
+ </para>
+
+ <para>
+ Refer to <xref linkend="sql-createforeigntable"> for a further description of valid
+ parameters. <xref linkend="ddl"> has further information on
+ inheritance.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>
+ To add a column of type <type>varchar</type> to a foreign table:
+<programlisting>
+ALTER FOREIGN TABLE distributors ADD COLUMN address varchar(30);
+</programlisting>
+ </para>
+
+ <para>
+ To drop a column from a foreign table:
+<programlisting>
+ALTER FOREIGN TABLE distributors DROP COLUMN address RESTRICT;
+</programlisting>
+ </para>
+
+ <para>
+ To change the types of two existing columns in one operation:
+<programlisting>
+ALTER FOREIGN TABLE distributors
+ ALTER COLUMN address TYPE varchar(80),
+ ALTER COLUMN name TYPE varchar(100);
+</programlisting>
+ </para>
+
+ <para>
+ To rename an existing column:
+<programlisting>
+ALTER FOREIGN TABLE distributors RENAME COLUMN address TO city;
+</programlisting>
+ </para>
+
+ <para>
+ To rename an existing table:
+<programlisting>
+ALTER FOREIGN TABLE distributors RENAME TO suppliers;
+</programlisting>
+ </para>
+
+ <para>
+ To add a not-null constraint to a column:
+<programlisting>
+ALTER FOREIGN TABLE distributors ALTER COLUMN street SET NOT NULL;
+</programlisting>
+ To remove a not-null constraint from a column:
+<programlisting>
+ALTER FOREIGN TABLE distributors ALTER COLUMN street DROP NOT NULL;
+</programlisting>
+ </para>
+
+ <para>
+ To chage options of a column of a foreign table:
+<programlisting>
+ALTER FOREIGN TABLE myschema.distributors ALTER COLUMN street OPTIONS (ADD opt1 'value', SET opt2, 'value2', DROP opt3 'value3');
+</programlisting>
+ </para>
+
+ <para>
+ To add a check constraint to a foreign table:
+<programlisting>
+ALTER FOREIGN TABLE distributors ADD CONSTRAINT zipchk CHECK (char_length(zipcode) = 5);
+</programlisting>
+ </para>
+
+ <para>
+ To remove a check constraint from a foreign table and all its children:
+<programlisting>
+ALTER FOREIGN TABLE distributors DROP CONSTRAINT zipchk;
+</programlisting>
+ </para>
+
+ <para>
+ To remove a check constraint from a foreign table only:
+<programlisting>
+ALTER FOREIGN TABLE ONLY distributors DROP CONSTRAINT zipchk;
+</programlisting>
+ </para>
+
+ <para>
+ To move a foreign table to a different schema:
+<programlisting>
+ALTER FOREIGN TABLE myschema.distributors SET SCHEMA yourschema;
+</programlisting>
+ </para>
+
+ <para>
+ To chage options of a foreign table:
+<programlisting>
+ALTER FOREIGN TABLE myschema.distributors OPTIONS (ADD opt1 'value', SET opt2, 'value2', DROP opt3 'value3');
+</programlisting>
+ </para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Compatibility</title>
+
+ <para>
+ The forms <literal>ADD</literal>, <literal>DROP</>,
+ and <literal>SET DATA TYPE</literal>
+ conform with the SQL standard. The other forms are
+ <productname>PostgreSQL</productname> extensions of the SQL standard.
+ Also, the ability to specify more than one manipulation in a single
+ <command>ALTER FOREIGN TABLE</> command is an extension.
+ </para>
+
+ <para>
+ <command>ALTER FOREIGN TABLE DROP COLUMN</> can be used to drop the only
+ column of a foreign table, leaving a zero-column table. This is an
+ extension of SQL, which disallows zero-column foreign tables.
+ </para>
+ </refsect1>
+</refentry>
that would add a normal column that happened to be named
<literal>oid</>, not a system column.
</para>
+
+ <para>
+ If the target table has been inherited by any foreign table, you can't
+ add <literal>oid</literal> system column because foreign table can't have
+ <literal>oid</literal>.
+ </para>
</listitem>
</varlistentry>
CONVERSION <replaceable class="PARAMETER">object_name</replaceable> |
DATABASE <replaceable class="PARAMETER">object_name</replaceable> |
DOMAIN <replaceable class="PARAMETER">object_name</replaceable> |
+ FOREIGN TABLE <replaceable class="PARAMETER">object_name</replaceable> |
FUNCTION <replaceable class="PARAMETER">function_name</replaceable> ( [ [ <replaceable class="parameter">argmode</replaceable> ] [ <replaceable class="parameter">argname</replaceable> ] <replaceable class="parameter">argtype</replaceable> [, ...] ] ) |
INDEX <replaceable class="PARAMETER">object_name</replaceable> |
LARGE OBJECT <replaceable class="PARAMETER">large_object_oid</replaceable> |
COMMENT ON CONVERSION my_conv IS 'Conversion to UTF8';
COMMENT ON DATABASE my_database IS 'Development Database';
COMMENT ON DOMAIN my_domain IS 'Email Address Domain';
+COMMENT ON FOREIGN TABLE my_schema.my_foreign_table IS 'Employee Information in other database';
COMMENT ON FUNCTION my_function (timestamp) IS 'Returns Roman Numeral';
COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee ID';
COMMENT ON LANGUAGE plpython IS 'Python support for stored procedures';
<synopsis>
CREATE FOREIGN DATA WRAPPER <replaceable class="parameter">name</replaceable>
[ VALIDATOR <replaceable class="parameter">valfunction</replaceable> | NO VALIDATOR ]
+ [ HANDLER <replaceable class="parameter">handler</replaceable> | NO HANDLER ]
[ OPTIONS ( <replaceable class="PARAMETER">option</replaceable> '<replaceable class="PARAMETER">value</replaceable>' [, ... ] ) ]
</synopsis>
</refsynopsisdiv>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><literal>HANDLER <replaceable class="parameter">handler</replaceable></literal></term>
+ <listitem>
+ <para>
+ <replaceable class="parameter">handler</replaceable> is the
+ name of a previously registered function that will be called to
+ retrieve a set of functions for foreign tables.
+ The validator function must take no arguments.
+ The return type must be <type>fdw_handler</type>.
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><literal>OPTIONS ( <replaceable class="PARAMETER">option</replaceable> '<replaceable class="PARAMETER">value</replaceable>' [, ... ] )</literal></term>
<listitem>
<para>
<command>CREATE FOREIGN DATA WRAPPER</command> conforms to ISO/IEC
- 9075-9 (SQL/MED), with the exception that
- the <literal>VALIDATOR</literal> clause is an extension and the
+ 9075-9 (SQL/MED), with the exception that the <literal>VALIDATOR</literal>
+ and <literal>HANDLER</literal> clauses are extensions and the
clauses <literal>LIBRARY</literal> and <literal>LANGUAGE</literal>
are not yet implemented in PostgreSQL.
</para>
--- /dev/null
+<!-- doc/src/sgml/ref/create_foreign_table.sgml -->
+
+<refentry id="SQL-CREATEFOREIGNTABLE">
+ <refmeta>
+ <refentrytitle>CREATE FOREIGN TABLE</refentrytitle>
+ <manvolnum>7</manvolnum>
+ <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+ <refname>CREATE FOREIGN TABLE</refname>
+ <refpurpose>define a new foreign table</refpurpose>
+ </refnamediv>
+
+ <indexterm zone="sql-createforeigntable">
+ <primary>CREATE FOREIGN TABLE</primary>
+ </indexterm>
+
+ <refsynopsisdiv>
+<synopsis>
+CREATE FOREIGN TABLE <replaceable class="PARAMETER">table_name</replaceable> ( [
+ { <replaceable class="PARAMETER">column_name</replaceable> <replaceable class="PARAMETER">data_type</replaceable> [ OPTIONS ( <replaceable class="PARAMETER">option</replaceable> '<replaceable class="PARAMETER">value</replaceable>' [, ... ] ) ] [ <replaceable class="PARAMETER">column_constraint</replaceable> [ ... ] ]
+ | <replaceable>table_constraint</replaceable>
+ | LIKE <replaceable>parent_table</replaceable> [ <replaceable>like_option</replaceable> ... ] }
+ [, ... ]
+] )
+[ INHERITS ( <replaceable>parent_table</replaceable> [, ... ] ) ]
+ SERVER <replaceable class="parameter">server_name</replaceable>
+[ OPTIONS ( <replaceable class="PARAMETER">option</replaceable> '<replaceable class="PARAMETER">value</replaceable>' [, ... ] ) ]
+
+<phrase>where <replaceable class="PARAMETER">column_constraint</replaceable> is:</phrase>
+
+[ CONSTRAINT <replaceable class="PARAMETER">constraint_name</replaceable> ]
+{ NOT NULL |
+ NULL |
+ CHECK ( <replaceable class="PARAMETER">expression</replaceable> )
+}
+
+<phrase>and <replaceable class="PARAMETER">table_constraint</replaceable> is:</phrase>
+
+[ CONSTRAINT <replaceable class="PARAMETER">constraint_name</replaceable> ]
+CHECK ( <replaceable class="PARAMETER">expression</replaceable> )
+
+<phrase>and <replaceable class="PARAMETER">like_option</replaceable> is:</phrase>
+
+{ INCLUDING | EXCLUDING } { CONSTRAINTS | COMMENTS | ALL }
+</synopsis>
+
+ </refsynopsisdiv>
+
+ <refsect1 id="SQL-CREATEFOREIGNTABLE-description">
+ <title>Description</title>
+
+ <para>
+ <command>CREATE FOREIGN TABLE</command> will create a new foreign table
+ in the current database. The table will be owned by the user issuing the
+ command.
+ </para>
+
+ <para>
+ If a schema name is given (for example, <literal>CREATE FOREIGN TABLE
+ myschema.mytable ...</>) then the table is created in the specified
+ schema. Otherwise it is created in the current schema.
+ The name of the foreign table must be
+ distinct from the name of any other foreign table, table, sequence, index,
+ or view in the same schema.
+ </para>
+
+ <para>
+ <command>CREATE FOREIGN TABLE</command> also automatically creates a data
+ type that represents the composite type corresponding to one row of
+ the foreign table. Therefore, foreign tables cannot have the same
+ name as any existing data type in the same schema.
+ </para>
+
+ <para>
+ The optional constraint clauses specify constraints (tests) that
+ retrieved rows must satisfy for an select operation
+ to succeed. A constraint is an SQL object that helps define the
+ set of valid values in the table in various ways.
+ </para>
+
+ <para>
+ There are two ways to define constraints: table constraints and
+ column constraints. A column constraint is defined as part of a
+ column definition. A table constraint definition is not tied to a
+ particular column, and it can encompass more than one column.
+ Every column constraint can also be written as a table constraint;
+ a column constraint is only a notational convenience for use when the
+ constraint only affects one column.
+ </para>
+
+ <para>
+ To create a foreign table, the foreign-data wrapper of the foreign
+ server must have handler function.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Parameters</title>
+
+ <variablelist>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">table_name</replaceable></term>
+ <listitem>
+ <para>
+ The name (optionally schema-qualified) of the table to be created.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">column_name</replaceable></term>
+ <listitem>
+ <para>
+ The name of a column to be created in the new table.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">data_type</replaceable></term>
+ <listitem>
+ <para>
+ The data type of the column. This can include array
+ specifiers. For more information on the data types supported by
+ <productname>PostgreSQL</productname>, refer to <xref
+ linkend="datatype">.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>OPTIONS ( <replaceable class="PARAMETER">option</replaceable> = '<replaceable class="PARAMETER">value</replaceable>' [, ...] )</literal></term>
+ <listitem>
+ <para>
+ This clause specified options for the new foreign table, or the
+ column of the new foreign table.
+ The allowed option names and values are specific to each foreign
+ data wrapper and are validated using the foreign-data wrapper
+ library. Option names must be unique.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>INHERITS ( <replaceable>parent_table</replaceable> [, ... ] )</literal></term>
+ <listitem>
+ <para>
+ The optional <literal>INHERITS</> clause specifies a list of
+ tables from which the new table automatically inherits all
+ columns.
+ </para>
+
+ <para>
+ Use of <literal>INHERITS</> creates a persistent relationship
+ between the new child table and its parent table(s). Schema
+ modifications to the parent(s) normally propagate to children
+ as well, and by default the data of the child table is included in
+ scans of the parent(s).
+ </para>
+
+ <para>
+ If the same column name exists in more than one parent
+ table, an error is reported unless the data types of the columns
+ match in each of the parent tables. If there is no conflict,
+ then the duplicate columns are merged to form a single column in
+ the new table. If the column name list of the new table
+ contains a column name that is also inherited, the data type must
+ likewise match the inherited column(s), and the column
+ definitions are merged into one. If the
+ new table explicitly specifies a default value for the column,
+ this default overrides any defaults from inherited declarations
+ of the column. Otherwise, any parents that specify default
+ values for the column must all specify the same default, or an
+ error will be reported.
+ </para>
+
+ <para>
+ <literal>CHECK</> constraints are merged in essentially the same way as
+ columns: if multiple parent tables and/or the new table definition
+ contain identically-named <literal>CHECK</> constraints, these
+ constraints must all have the same check expression, or an error will be
+ reported. Constraints having the same name and expression will
+ be merged into one copy. Notice that an unnamed <literal>CHECK</>
+ constraint in the new table will never be merged, since a unique name
+ will always be chosen for it.
+ </para>
+
+ <para>
+ The parent must not have OIDs because foreign table can't have OIDs.
+ </para>
+
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>LIKE <replaceable>parent_table</replaceable> [ <replaceable>like_option</replaceable> ... ]</literal></term>
+ <listitem>
+ <para>
+ The <literal>LIKE</literal> clause specifies a table from which
+ the new table automatically copies all column names, their data types,
+ and their not-null constraints.
+ </para>
+ <para>
+ Unlike <literal>INHERITS</literal>, the new table and original table
+ are completely decoupled after creation is complete. Changes to the
+ original table will not be applied to the new table, and it is not
+ possible to include data of the new table in scans of the original
+ table.
+ </para>
+ <para>
+ Not-null constraints are always copied to the new table.
+ <literal>CHECK</literal> constraints will only be copied if
+ <literal>INCLUDING CONSTRAINTS</literal> is specified; other types of
+ constraints will never be copied. Also, no distinction is made between
+ column constraints and table constraints — when constraints are
+ requested, all check constraints are copied.
+ </para>
+ <para>
+ Comments for the copied columns and constraints
+ will only be copied if <literal>INCLUDING COMMENTS</literal>
+ is specified. The default behavior is to exclude comments, resulting in
+ the copied columns and constraints in the new table having no comments.
+ </para>
+ <para>
+ <literal>INCLUDING ALL</literal> is an abbreviated form of
+ <literal>INCLUDING CONSTRAINTS INCLUDING COMMENTS</literal>.
+ </para>
+ <para>
+ Note also that unlike <literal>INHERITS</literal>, columns and
+ constraints copied by <literal>LIKE</> are not merged with similarly
+ named columns and constraints.
+ If the same name is specified explicitly or in another
+ <literal>LIKE</literal> clause, an error is signalled.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>CONSTRAINT <replaceable class="PARAMETER">constraint_name</replaceable></literal></term>
+ <listitem>
+ <para>
+ An optional name for a column or table constraint. If the
+ constraint is violated, the constraint name is present in error messages,
+ so constraint names like <literal>col must be positive</> can be used
+ to communicate helpful constraint information to client applications.
+ (Double-quotes are needed to specify constraint names that contain spaces.)
+ If a constraint name is not specified, the system generates a name.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>NOT NULL</></term>
+ <listitem>
+ <para>
+ The column is not allowed to contain null values.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>NULL</></term>
+ <listitem>
+ <para>
+ The column is allowed to contain null values. This is the default.
+ </para>
+
+ <para>
+ This clause is only provided for compatibility with
+ non-standard SQL databases. Its use is discouraged in new
+ applications.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>CHECK ( <replaceable class="PARAMETER">expression</replaceable> )</literal></term>
+ <listitem>
+ <para>
+ The <literal>CHECK</> clause specifies an expression producing a
+ Boolean result which new or updated rows must satisfy for an
+ insert or update operation to succeed. Expressions evaluating
+ to TRUE or UNKNOWN succeed. Should any row of an insert or
+ update operation produce a FALSE result an error exception is
+ raised and the insert or update does not alter the database. A
+ check constraint specified as a column constraint should
+ reference that column's value only, while an expression
+ appearing in a table constraint can reference multiple columns.
+ </para>
+
+ <para>
+ Currently, <literal>CHECK</literal> expressions cannot contain
+ subqueries nor refer to variables other than columns of the
+ current row.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ </variablelist>
+
+ </refsect1>
+
+
+ <refsect1 id="SQL-CREATEFOREIGNTABLE-examples">
+ <title>Examples</title>
+
+ <para>
+ Create foreign table <structname>films</> with <structname>film_server</>:
+
+<programlisting>
+CREATE FOREIGN TABLE films (
+ code char(5) NOT NULL,
+ title varchar(40) NOT NULL,
+ did integer NOT NULL,
+ date_prod date,
+ kind varchar(10),
+ len interval hour to minute
+)
+SERVER film_server;
+</programlisting>
+ </para>
+
+ <para>
+ Define a check column constraint:
+
+<programlisting>
+CREATE FOREIGN TABLE distributors (
+ did integer CHECK (did > 100),
+ name varchar(40)
+)
+SERVER distributor_server;
+</programlisting>
+ </para>
+
+ <para>
+ Define a check table constraint:
+
+<programlisting>
+CREATE FOREIGN TABLE distributors (
+ did integer,
+ name varchar(40)
+ CONSTRAINT con1 CHECK (did > 100 AND name <> '')
+)
+SERVER distributor_server;
+</programlisting>
+ </para>
+
+ </refsect1>
+
+ <refsect1 id="SQL-CREATEFOREIGNTABLE-compatibility">
+ <title id="SQL-CREATEFOREIGNTABLE-compatibility-title">Compatibility</title>
+
+ <para>
+ The <command>CREATE FOREIGN TABLE</command> command conforms to the
+ <acronym>SQL</acronym> standard, with exceptions listed below.
+ </para>
+
+ <refsect2>
+ <title>Column Check Constraints</title>
+
+ <para>
+ The SQL standard says that <literal>CHECK</> column constraints
+ can only refer to the column they apply to; only <literal>CHECK</>
+ table constraints can refer to multiple columns.
+ <productname>PostgreSQL</productname> does not enforce this
+ restriction; it treats column and table check constraints alike.
+ </para>
+ </refsect2>
+
+ <refsect2>
+ <title><literal>NULL</literal> <quote>Constraint</quote></title>
+
+ <para>
+ The <literal>NULL</> <quote>constraint</quote> (actually a
+ non-constraint) is a <productname>PostgreSQL</productname>
+ extension to the SQL standard that is included for compatibility with some
+ other database systems (and for symmetry with the <literal>NOT
+ NULL</literal> constraint). Since it is the default for any
+ column, its presence is simply noise.
+ </para>
+ </refsect2>
+
+ <refsect2>
+ <title>Inheritance</title>
+
+ <para>
+ Multiple inheritance via the <literal>INHERITS</literal> clause is
+ a <productname>PostgreSQL</productname> language extension.
+ SQL:1999 and later define single inheritance using a
+ different syntax and different semantics. SQL:1999-style
+ inheritance is not yet supported by
+ <productname>PostgreSQL</productname>.
+ </para>
+ </refsect2>
+
+ <refsect2>
+ <title>Zero-column tables</title>
+
+ <para>
+ <productname>PostgreSQL</productname> allows a table of no columns
+ to be created (for example, <literal>CREATE FOREIGN TABLE foo();</>). This
+ is an extension from the SQL standard, which does not allow zero-column
+ tables. Zero-column tables are not in themselves very useful, but
+ disallowing them creates odd special cases for <command>ALTER TABLE
+ DROP COLUMN</>, so it seems cleaner to ignore this spec restriction.
+ </para>
+ </refsect2>
+
+ </refsect1>
+
+
+ <refsect1>
+ <title>See Also</title>
+
+ <simplelist type="inline">
+ <member><xref linkend="sql-alterforeigntable"></member>
+ <member><xref linkend="sql-dropforeigntable"></member>
+ <member><xref linkend="sql-createtable"></member>
+ <member><xref linkend="sql-createtype"></member>
+ <member><xref linkend="sql-createserver"></member>
+ </simplelist>
+ </refsect1>
+</refentry>
Temporary sequences exist in a special schema, so a schema name cannot be
given when creating a temporary sequence.
The sequence name must be distinct from the name of any other sequence,
- table, index, or view in the same schema.
+ table, index, view, or foreign table in the same schema.
</para>
<para>
schema. Otherwise it is created in the current schema. Temporary
tables exist in a special schema, so a schema name cannot be given
when creating a temporary table. The name of the table must be
- distinct from the name of any other table, sequence, index, or view
- in the same schema.
+ distinct from the name of any other table, sequence, index, view,
+ or foreign table in the same schema.
</para>
<para>
schema. Otherwise it is created in the current schema. Temporary
views exist in a special schema, so a schema name cannot be given
when creating a temporary view. The name of the view must be
- distinct from the name of any other view, table, sequence, or index
+ distinct from the name of any other view, table, sequence, index or foreign table
in the same schema.
</para>
</refsect1>
--- /dev/null
+<!-- doc/src/sggml/ref/drop_foreign_table.sgml -->
+
+<refentry id="SQL-DROPFOREIGNTABLE">
+ <refmeta>
+ <refentrytitle>DROP FOREIGN TABLE</refentrytitle>
+ <manvolnum>7</manvolnum>
+ <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+ <refname>DROP FOREIGN TABLE</refname>
+ <refpurpose>remove a foreign table</refpurpose>
+ </refnamediv>
+
+ <indexterm zone="sql-dropforeigntable">
+ <primary>DROP FOREIGN TABLE</primary>
+ </indexterm>
+
+ <refsynopsisdiv>
+<synopsis>
+DROP FOREIGN TABLE [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable> [, ...] [ CASCADE | RESTRICT ]
+</synopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>
+ <command>DROP FOREIGN TABLE</command> removes foreign tables from the database.
+ Only its owner can drop a foreign table.
+ </para>
+
+ <para>
+ <command>DROP FOREIGN TABLE</command> always removes any
+ constraints that exist for the target table.
+ However, to drop a foreign table that is referenced by a view,
+ <literal>CASCADE</> must be
+ specified. (<literal>CASCADE</> will remove a dependent view entirely,
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Parameters</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><literal>IF EXISTS</literal></term>
+ <listitem>
+ <para>
+ Do not throw an error if theforeign table does not exist. A notice is issued
+ in this case.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><replaceable class="PARAMETER">name</replaceable></term>
+ <listitem>
+ <para>
+ The name (optionally schema-qualified) of theforeign table to drop.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>CASCADE</literal></term>
+ <listitem>
+ <para>
+ Automatically drop objects that depend on theforeign table (such as
+ views).
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>RESTRICT</literal></term>
+ <listitem>
+ <para>
+ Refuse to drop theforeign table if any objects depend on it. This is
+ the default.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>
+ To destroy two foreign tables, <literal>films</literal> and
+ <literal>distributors</literal>:
+
+<programlisting>
+DROP FOREIGN TABLE films, distributors;
+</programlisting>
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Compatibility</title>
+
+ <para>
+ This command conforms to the ISO/IEC 9075-9 (SQL/MED), except that the
+ standard only allows one foreign table to be dropped per command, and apart
+ from the <literal>IF EXISTS</> option, which is a <productname>PostgreSQL</>
+ extension.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <simplelist type="inline">
+ <member><xref linkend="sql-alterforeigntable"></member>
+ <member><xref linkend="sql-createforeigntable"></member>
+ </simplelist>
+ </refsect1>
+
+</refentry>
<term><option>--table=<replaceable class="parameter">table</replaceable></option></term>
<listitem>
<para>
- Dump only tables (or views or sequences) matching <replaceable
- class="parameter">table</replaceable>. Multiple tables can be
- selected by writing multiple <option>-t</> switches. Also, the
+ Dump only tables (or views or sequences or foreign tables) matching
+ <replaceable class="parameter">table</replaceable>. Multiple tables
+ can be selected by writing multiple <option>-t</> switches. Also, the
<replaceable class="parameter">table</replaceable> parameter is
interpreted as a pattern according to the same rules used by
<application>psql</>'s <literal>\d</> commands (see <xref
<listitem>
<para>
- For each relation (table, view, index, or sequence) matching the
+ For each relation (table, view, index, sequence or foreign table)
+ matching the
<replaceable class="parameter">pattern</replaceable>, show all
columns, their types, the tablespace (if not the default) and any
special attributes such as <literal>NOT NULL</literal> or defaults.
Associated indexes, constraints, rules, and triggers are
- also shown.
+ also shown. If the relation was as foreign table, associated foreign
+ server is shown too.
(<quote>Matching the pattern</> is defined in
<xref linkend="APP-PSQL-patterns" endterm="APP-PSQL-patterns-title">
below.)
The command form <literal>\d+</literal> is identical, except that
more information is displayed: any comments associated with the
columns of the table are shown, as is the presence of OIDs in the
- table, and the view definition if the relation is a view.
+ table, the view definition if the relation is a view, and the generic
+ options if the relation is a foreign table.
</para>
<para>
<para>
If <command>\d</command> is used without a
<replaceable class="parameter">pattern</replaceable> argument, it is
- equivalent to <command>\dtvs</command> which will show a list of
- all visible tables, views, and sequences. This is purely a convenience
- measure.
+ equivalent to <command>\dtvsE</command> which will show a list of
+ all visible tables, views, sequences and foreign tables.
+ This is purely a convenience measure.
</para>
</note>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><literal>\det[+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
+ <listitem>
+ <para>
+ Lists foreign tables (mnemonic: <quote>external tables</quote>).
+ If <replaceable class="parameter">pattern</replaceable> is
+ specified, only entries whose table name or schema name matches
+ the pattern are listed. If the form <literal>\det+</literal>
+ is used, combined generic options is shown additionally.
+ </para>
+ </listitem>
+ </varlistentry>
+
+
<varlistentry>
<term><literal>\des[+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
<listitem>
<term><literal>\ds[S+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
<term><literal>\dt[S+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
<term><literal>\dv[S+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
+ <term><literal>\dE[S+] [ <link linkend="APP-PSQL-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>
<listitem>
<para>
In this group of commands, the letters
<literal>i</literal>, <literal>s</literal>,
<literal>t</literal>, and <literal>v</literal>
- stand for index, sequence, table, and view, respectively.
+ stand for index, sequence, table, view, and foreign table,
+ respectively.
You can specify any or all of
these letters, in any order, to obtain a listing of objects
of these types. For example, <literal>\dit</> lists indexes
&alterDefaultPrivileges;
&alterDomain;
&alterForeignDataWrapper;
+ &alterForeignTable;
&alterFunction;
&alterGroup;
&alterIndex;
&createDatabase;
&createDomain;
&createForeignDataWrapper;
+ &createForeignTable;
&createFunction;
&createGroup;
&createIndex;
&dropDatabase;
&dropDomain;
&dropForeignDataWrapper;
+ &dropForeignTable;
&dropFunction;
&dropGroup;
&dropIndex;
case RELKIND_RELATION:
case RELKIND_TOASTVALUE:
case RELKIND_UNCATALOGED:
+ case RELKIND_FOREIGN_TABLE:
options = heap_reloptions(classForm->relkind, datum, false);
break;
case RELKIND_INDEX:
return (bytea *) rdopts;
case RELKIND_RELATION:
return default_reloptions(reloptions, validate, RELOPT_KIND_HEAP);
+ case RELKIND_FOREIGN_TABLE:
+ if (validate && PointerIsValid(DatumGetPointer(reloptions)))
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+ errmsg("foreign table does not support storage options")));
+ return NULL;
default:
/* sequences, composite types and views are not supported */
return NULL;
pg_ts_config.h pg_ts_config_map.h pg_ts_dict.h \
pg_ts_parser.h pg_ts_template.h \
pg_foreign_data_wrapper.h pg_foreign_server.h pg_user_mapping.h \
+ pg_foreign_table.h \
pg_default_acl.h pg_seclabel.h \
toasting.h indexing.h \
)
case ACL_KIND_FOREIGN_SERVER:
whole_mask = ACL_ALL_RIGHTS_FOREIGN_SERVER;
break;
+ case ACL_KIND_FOREIGN_TABLE:
+ whole_mask = ACL_ALL_RIGHTS_FOREIGN_TABLE;
+ break;
default:
elog(ERROR, "unrecognized object kind: %d", objkind);
/* not reached, but keep compiler quiet */
all_privileges = ACL_ALL_RIGHTS_FOREIGN_SERVER;
errormsg = gettext_noop("invalid privilege type %s for foreign server");
break;
+ case ACL_OBJECT_FOREIGN_TABLE:
+ all_privileges = ACL_ALL_RIGHTS_FOREIGN_TABLE;
+ errormsg = gettext_noop("invalid privilege type %s for foreign table");
+ break;
default:
elog(ERROR, "unrecognized GrantStmt.objtype: %d",
(int) stmt->objtype);
{
case ACL_OBJECT_RELATION:
case ACL_OBJECT_SEQUENCE:
+ case ACL_OBJECT_FOREIGN_TABLE:
ExecGrant_Relation(istmt);
break;
case ACL_OBJECT_DATABASE:
{
case ACL_OBJECT_RELATION:
case ACL_OBJECT_SEQUENCE:
+ case ACL_OBJECT_FOREIGN_TABLE:
foreach(cell, objnames)
{
RangeVar *relvar = (RangeVar *) lfirst(cell);
switch (objtype)
{
case ACL_OBJECT_RELATION:
- /* Process both regular tables and views */
+ /* Process both regular tables, views and foreign tables */
objs = getRelationsInNamespace(namespaceId, RELKIND_RELATION);
objects = list_concat(objects, objs);
objs = getRelationsInNamespace(namespaceId, RELKIND_VIEW);
objects = list_concat(objects, objs);
+ objs = getRelationsInNamespace(namespaceId, RELKIND_FOREIGN_TABLE);
+ objects = list_concat(objects, objs);
break;
case ACL_OBJECT_SEQUENCE:
objs = getRelationsInNamespace(namespaceId, RELKIND_SEQUENCE);
errmsg("\"%s\" is not a sequence",
NameStr(pg_class_tuple->relname))));
+ /* Used GRANT FOREIGN TABLE on a non-foreign-table? */
+ if (istmt->objtype == ACL_OBJECT_FOREIGN_TABLE &&
+ pg_class_tuple->relkind != RELKIND_FOREIGN_TABLE)
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("\"%s\" is not a foreign table",
+ NameStr(pg_class_tuple->relname))));
+
/* Adjust the default permissions based on whether it is a sequence */
if (istmt->all_privs && istmt->privileges == ACL_NO_RIGHTS)
{
- if (pg_class_tuple->relkind == RELKIND_SEQUENCE)
- this_privileges = ACL_ALL_RIGHTS_SEQUENCE;
- else
- this_privileges = ACL_ALL_RIGHTS_RELATION;
+ switch (pg_class_tuple->relkind)
+ {
+ case RELKIND_SEQUENCE:
+ this_privileges = ACL_ALL_RIGHTS_SEQUENCE;
+ break;
+ case RELKIND_FOREIGN_TABLE:
+ this_privileges = ACL_ALL_RIGHTS_FOREIGN_TABLE;
+ break;
+ default:
+ this_privileges = ACL_ALL_RIGHTS_RELATION;
+ break;
+ }
}
else
this_privileges = istmt->privileges;
this_privileges &= (AclMode) ACL_ALL_RIGHTS_SEQUENCE;
}
}
+ else if (pg_class_tuple->relkind == RELKIND_FOREIGN_TABLE)
+ {
+ if (this_privileges & ~((AclMode) ACL_ALL_RIGHTS_FOREIGN_TABLE))
+ {
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_GRANT_OPERATION),
+ errmsg("foreign table \"%s\" only supports SELECT privileges",
+ NameStr(pg_class_tuple->relname))));
+ }
+ }
else
{
if (this_privileges & ~((AclMode) ACL_ALL_RIGHTS_RELATION))
&isNull);
if (isNull)
{
- old_acl = acldefault(pg_class_tuple->relkind == RELKIND_SEQUENCE ?
- ACL_OBJECT_SEQUENCE : ACL_OBJECT_RELATION,
- ownerId);
+ switch (pg_class_tuple->relkind)
+ {
+ case RELKIND_SEQUENCE:
+ old_acl = acldefault(ACL_OBJECT_SEQUENCE, ownerId);
+ break;
+ case RELKIND_FOREIGN_TABLE:
+ old_acl = acldefault(ACL_OBJECT_FOREIGN_TABLE, ownerId);
+ break;
+ default:
+ old_acl = acldefault(ACL_OBJECT_RELATION, ownerId);
+ break;
+ }
/* There are no old member roles according to the catalogs */
noldmembers = 0;
oldmembers = NULL;
bool replaces[Natts_pg_class];
int nnewmembers;
Oid *newmembers;
+ AclObjectKind aclkind;
/* Determine ID to do the grant as, and available grant options */
select_best_grantor(GetUserId(), this_privileges,
old_acl, ownerId,
&grantorId, &avail_goptions);
+ switch (pg_class_tuple->relkind)
+ {
+ case RELKIND_SEQUENCE:
+ aclkind = ACL_KIND_SEQUENCE;
+ break;
+ case RELKIND_FOREIGN_TABLE:
+ aclkind = ACL_KIND_FOREIGN_TABLE;
+ break;
+ default:
+ aclkind = ACL_KIND_CLASS;
+ break;
+ }
+
/*
* Restrict the privileges to what we can actually grant, and emit
* the standards-mandated warning and error messages.
this_privileges =
restrict_and_check_grant(istmt->is_grant, avail_goptions,
istmt->all_privs, this_privileges,
- relOid, grantorId,
- pg_class_tuple->relkind == RELKIND_SEQUENCE
- ? ACL_KIND_SEQUENCE : ACL_KIND_CLASS,
+ relOid, grantorId, aclkind,
NameStr(pg_class_tuple->relname),
0, NULL);
this_privileges &= (AclMode) ACL_SELECT;
}
+ else if (pg_class_tuple->relkind == RELKIND_FOREIGN_TABLE &&
+ this_privileges & ~((AclMode) ACL_SELECT))
+ {
+ /* Foreign tables have the same restriction with sequences. */
+ ereport(WARNING,
+ (errcode(ERRCODE_INVALID_GRANT_OPERATION),
+ errmsg("foreign table \"%s\" only supports SELECT column privileges",
+ NameStr(pg_class_tuple->relname))));
+ this_privileges &= (AclMode) ACL_SELECT;
+ }
expand_col_privileges(col_privs->cols, relOid,
this_privileges,
/* ACL_KIND_FDW */
gettext_noop("permission denied for foreign-data wrapper %s"),
/* ACL_KIND_FOREIGN_SERVER */
- gettext_noop("permission denied for foreign server %s")
+ gettext_noop("permission denied for foreign server %s"),
+ /* ACL_KIND_FOREIGN_TABLE */
+ gettext_noop("permission denied for foreign table %s"),
};
static const char *const not_owner_msg[MAX_ACL_KIND] =
/* ACL_KIND_FDW */
gettext_noop("must be owner of foreign-data wrapper %s"),
/* ACL_KIND_FOREIGN_SERVER */
- gettext_noop("must be owner of foreign server %s")
+ gettext_noop("must be owner of foreign server %s"),
+ /* ACL_KIND_FOREIGN_TABLE */
+ gettext_noop("must be owner of foreign table %s"),
};
if (isNull)
{
/* No ACL, so build default ACL */
- acl = acldefault(classForm->relkind == RELKIND_SEQUENCE ?
- ACL_OBJECT_SEQUENCE : ACL_OBJECT_RELATION,
- ownerId);
+ switch (classForm->relkind)
+ {
+ case RELKIND_SEQUENCE:
+ acl = acldefault(ACL_OBJECT_SEQUENCE, ownerId);
+ break;
+ case RELKIND_FOREIGN_TABLE:
+ acl = acldefault(ACL_OBJECT_FOREIGN_TABLE, ownerId);
+ break;
+ default:
+ acl = acldefault(ACL_OBJECT_RELATION, ownerId);
+ break;
+ }
aclDatum = (Datum) 0;
}
else
#include "catalog/pg_depend.h"
#include "catalog/pg_foreign_data_wrapper.h"
#include "catalog/pg_foreign_server.h"
+#include "catalog/pg_foreign_table.h"
#include "catalog/pg_language.h"
#include "catalog/pg_largeobject.h"
#include "catalog/pg_namespace.h"
ForeignDataWrapperRelationId, /* OCLASS_FDW */
ForeignServerRelationId, /* OCLASS_FOREIGN_SERVER */
UserMappingRelationId, /* OCLASS_USER_MAPPING */
+ ForeignTableRelationId, /* OCLASS_FOREIGN_TABLE */
DefaultAclRelationId /* OCLASS_DEFACL */
};
case UserMappingRelationId:
return OCLASS_USER_MAPPING;
+ case ForeignTableRelationId:
+ Assert(object->objectSubId == 0);
+ return OCLASS_FOREIGN_TABLE;
+
case DefaultAclRelationId:
return OCLASS_DEFACL;
}
appendStringInfo(buffer, _("composite type %s"),
relname);
break;
+ case RELKIND_FOREIGN_TABLE:
+ appendStringInfo(buffer, _("foreign table %s"),
+ relname);
+ break;
default:
/* shouldn't get here */
appendStringInfo(buffer, _("relation %s"),
#include "catalog/objectaccess.h"
#include "catalog/pg_attrdef.h"
#include "catalog/pg_constraint.h"
+#include "catalog/pg_foreign_table.h"
#include "catalog/pg_inherits.h"
#include "catalog/pg_namespace.h"
#include "catalog/pg_statistic.h"
*/
/*
- * The initializers below do not include the attoptions or attacl fields,
- * but that's OK - we're never going to reference anything beyond the
- * fixed-size portion of the structure anyway.
+ * The initializers below do not include the attoptions or
+ * attacl fields, but that's OK - we're never going to reference anything
+ * beyond the fixed-size portion of the structure anyway.
*/
static FormData_pg_attribute a1 = {
{
case RELKIND_VIEW:
case RELKIND_COMPOSITE_TYPE:
+ case RELKIND_FOREIGN_TABLE:
create_storage = false;
/*
new_rel_reltup->reltuples = 1;
break;
default:
- /* Views, etc, have no disk storage */
+ /* Views and foreign tables, etc, have no disk storage */
new_rel_reltup->relpages = 0;
new_rel_reltup->reltuples = 0;
break;
/* Use binary-upgrade overrides if applicable */
if (OidIsValid(binary_upgrade_next_heap_relfilenode) &&
(relkind == RELKIND_RELATION || relkind == RELKIND_SEQUENCE ||
- relkind == RELKIND_VIEW || relkind == RELKIND_COMPOSITE_TYPE))
+ relkind == RELKIND_VIEW || relkind == RELKIND_COMPOSITE_TYPE ||
+ relkind == RELKIND_FOREIGN_TABLE))
{
relid = binary_upgrade_next_heap_relfilenode;
binary_upgrade_next_heap_relfilenode = InvalidOid;
{
case RELKIND_RELATION:
case RELKIND_VIEW:
+ case RELKIND_FOREIGN_TABLE:
relacl = get_user_default_acl(ACL_OBJECT_RELATION, ownerid,
relnamespace);
break;
* Decide whether to create an array type over the relation's rowtype. We
* do not create any array types for system catalogs (ie, those made
* during initdb). We create array types for regular relations, views,
- * and composite types ... but not, eg, for toast tables or sequences.
+ * composite types and foreign tables ... but not, eg, for toast tables or sequences.
*/
if (IsUnderPostmaster && (relkind == RELKIND_RELATION ||
relkind == RELKIND_VIEW ||
"it is being used by active queries in this session",
RelationGetRelationName(rel))));
+ /*
+ * Delete pg_foreign_table tuple first.
+ */
+ if (rel->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
+ {
+ Relation rel;
+ HeapTuple tuple;
+
+ rel = heap_open(ForeignTableRelationId, RowExclusiveLock);
+
+ tuple = SearchSysCache(FOREIGNTABLEREL,
+ ObjectIdGetDatum(relid), 0, 0, 0);
+ if (!HeapTupleIsValid(tuple))
+ elog(ERROR, "cache lookup failed for foreign table %u", relid);
+
+ simple_heap_delete(rel, &tuple->t_self);
+
+ ReleaseSysCache(tuple);
+ heap_close(rel, RowExclusiveLock);
+ }
+
/*
* Schedule unlinking of the relation's physical files at commit.
*/
if (rel->rd_rel->relkind != RELKIND_VIEW &&
- rel->rd_rel->relkind != RELKIND_COMPOSITE_TYPE)
+ rel->rd_rel->relkind != RELKIND_COMPOSITE_TYPE &&
+ rel->rd_rel->relkind != RELKIND_FOREIGN_TABLE)
{
RelationDropStorage(rel);
}
AND a.attrelid = c.oid
AND a.atttypid = t.oid
AND t.typtype = 'd'
- AND c.relkind IN ('r', 'v')
+ AND c.relkind IN ('r', 'v', 'f')
AND a.attnum > 0
AND NOT a.attisdropped
AND pg_has_role(t.typowner, 'USAGE');
pr_c.relowner
FROM (SELECT oid, relname, relnamespace, relowner, (aclexplode(relacl)).*
FROM pg_class
- WHERE relkind IN ('r', 'v')
+ WHERE relkind IN ('r', 'v', 'f')
) pr_c (oid, relname, relnamespace, relowner, grantor, grantee, prtype, grantable),
pg_attribute a
WHERE a.attrelid = pr_c.oid
) pr_a (attrelid, attname, grantor, grantee, prtype, grantable),
pg_class c
WHERE pr_a.attrelid = c.oid
- AND relkind IN ('r','v')
+ AND relkind IN ('r', 'v', 'f')
) x,
pg_namespace nc,
pg_authid u_grantor,
WHERE a.attrelid = c.oid
AND a.atttypid = t.oid
AND nc.oid = c.relnamespace
- AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v')
+ AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v', 'f')
AND pg_has_role(coalesce(bt.typowner, t.typowner), 'USAGE');
GRANT SELECT ON column_udt_usage TO PUBLIC;
AND nc.oid = c.relnamespace
AND (NOT pg_is_other_temp_schema(nc.oid))
- AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v')
+ AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v', 'f')
AND (pg_has_role(c.relowner, 'USAGE')
OR has_column_privilege(c.oid, a.attnum,
CASE WHEN nc.oid = pg_my_temp_schema() THEN 'LOCAL TEMPORARY'
WHEN c.relkind = 'r' THEN 'BASE TABLE'
WHEN c.relkind = 'v' THEN 'VIEW'
+ WHEN c.relkind = 'f' THEN 'FOREIGN TABLE'
ELSE null END
AS character_data) AS table_type,
FROM pg_namespace nc JOIN pg_class c ON (nc.oid = c.relnamespace)
LEFT JOIN (pg_type t JOIN pg_namespace nt ON (t.typnamespace = nt.oid)) ON (c.reloftype = t.oid)
- WHERE c.relkind IN ('r', 'v')
+ WHERE c.relkind IN ('r', 'v', 'f')
AND (NOT pg_is_other_temp_schema(nc.oid))
AND (pg_has_role(c.relowner, 'USAGE')
OR has_table_privilege(c.oid, 'SELECT, INSERT, UPDATE, DELETE, TRUNCATE, REFERENCES, TRIGGER')
AND dt.refclassid = 'pg_catalog.pg_class'::regclass
AND dt.refobjid = t.oid
AND t.relnamespace = nt.oid
- AND t.relkind IN ('r', 'v')
+ AND t.relkind IN ('r', 'v', 'f')
AND t.oid = a.attrelid
AND dt.refobjsubid = a.attnum
AND pg_has_role(t.relowner, 'USAGE');
AND dt.refclassid = 'pg_catalog.pg_class'::regclass
AND dt.refobjid = t.oid
AND t.relnamespace = nt.oid
- AND t.relkind IN ('r', 'v')
+ AND t.relkind IN ('r', 'v', 'f')
AND pg_has_role(t.relowner, 'USAGE');
GRANT SELECT ON view_table_usage TO PUBLIC;
'TABLE'::text, a.attnum, a.atttypid
FROM pg_class c, pg_attribute a
WHERE c.oid = a.attrelid
- AND c.relkind IN ('r', 'v')
+ AND c.relkind IN ('r', 'v', 'f')
AND attnum > 0 AND NOT attisdropped
UNION ALL
GRANT SELECT ON foreign_servers TO PUBLIC;
+/* Base view for foreign tables */
+CREATE VIEW _pg_foreign_tables AS
+ SELECT
+ CAST(current_database() AS sql_identifier) AS foreign_table_catalog,
+ n.nspname AS foreign_table_schema,
+ c.relname AS foreign_table_name,
+ t.ftoptions AS ftoptions,
+ CAST(current_database() AS sql_identifier) AS foreign_server_catalog,
+ CAST(srvname AS sql_identifier) AS foreign_server_name,
+ CAST(u.rolname AS sql_identifier) AS authorization_identifier
+ FROM pg_foreign_table t, pg_foreign_server s, pg_foreign_data_wrapper w,
+ pg_authid u, pg_namespace n, pg_class c
+ WHERE w.oid = s.srvfdw
+ AND u.oid = c.relowner
+ AND (pg_has_role(c.relowner, 'USAGE')
+ OR has_table_privilege(c.oid, 'SELECT')
+ OR has_any_column_privilege(c.oid, 'SELECT'))
+ AND n.oid = c.relnamespace
+ AND c.oid = t.ftrelid
+ AND c.relkind = 'f'
+ AND s.oid = t.ftserver;
+
+
+/*
+ * 24.8
+ * FOREIGN_TABLE_OPTIONS view
+ */
+CREATE VIEW foreign_table_options AS
+ SELECT foreign_table_catalog,
+ foreign_table_schema,
+ foreign_table_name,
+ CAST((pg_options_to_table(t.ftoptions)).option_name AS sql_identifier) AS option_name,
+ CAST((pg_options_to_table(t.ftoptions)).option_value AS character_data) AS option_value
+ FROM _pg_foreign_tables t;
+
+GRANT SELECT ON TABLE foreign_table_options TO PUBLIC;
+
+
+/*
+ * 24.9
+ * FOREIGN_TABLES view
+ */
+CREATE VIEW foreign_tables AS
+ SELECT foreign_table_catalog,
+ foreign_table_schema,
+ foreign_table_name,
+ foreign_server_catalog,
+ foreign_server_name
+ FROM _pg_foreign_tables;
+
+GRANT SELECT ON foreign_tables TO PUBLIC;
+
+
+
/* Base view for user mappings */
CREATE VIEW _pg_user_mappings AS
SELECT um.oid,
case OBJECT_SEQUENCE:
case OBJECT_TABLE:
case OBJECT_VIEW:
+ case OBJECT_FOREIGN_TABLE:
relation =
get_relation_by_qualified_name(objtype, objname, lockmode);
address.classId = RelationRelationId;
errmsg("\"%s\" is not a view",
RelationGetRelationName(relation))));
break;
+ case OBJECT_FOREIGN_TABLE:
+ if (relation->rd_rel->relkind != RELKIND_FOREIGN_TABLE)
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("\"%s\" is not a foreign table",
+ RelationGetRelationName(relation))));
+ break;
default:
elog(ERROR, "unrecognized objtype: %d", (int) objtype);
break;
case OBJECT_COLUMN:
case OBJECT_ATTRIBUTE:
case OBJECT_TRIGGER:
+ case OBJECT_FOREIGN_TABLE:
{
Oid relid;
case OBJECT_SEQUENCE:
case OBJECT_VIEW:
case OBJECT_INDEX:
+ case OBJECT_FOREIGN_TABLE:
{
/*
* RENAME TABLE requires that we (still) hold
case OBJECT_SEQUENCE:
case OBJECT_TABLE:
case OBJECT_VIEW:
+ case OBJECT_FOREIGN_TABLE:
CheckRelationOwnership(stmt->relation, true);
AlterTableNamespace(stmt->relation, stmt->newschema,
stmt->objectType, AccessExclusiveLock);
/* No need for a WARNING if we already complained during VACUUM */
if (!(vacstmt->options & VACOPT_VACUUM))
ereport(WARNING,
- (errmsg("skipping \"%s\" --- cannot analyze indexes, views, or special system tables",
+ (errmsg("skipping \"%s\" --- cannot analyze indexes, views, foreign tables or special system tables",
RelationGetRelationName(onerel))));
relation_close(onerel, ShareUpdateExclusiveLock);
return;
continue;
}
+ /* Ignore child foreign tables */
+ if (childrel->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
+ {
+ heap_close(childrel, AccessShareLock);
+ continue;
+ }
+
rels[nrels] = childrel;
relblocks[nrels] = (double) RelationGetNumberOfBlocks(childrel);
totalblocks += relblocks[nrels];
case OBJECT_SEQUENCE:
case OBJECT_TABLE:
case OBJECT_VIEW:
+ case OBJECT_FOREIGN_TABLE:
if (!pg_class_ownercheck(RelationGetRelid(relation), GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_CLASS,
RelationGetRelationName(relation));
RelationGetRelationName(relation));
/*
- * Allow comments only on columns of tables, views, and composite types
+ * Allow comments only on columns of tables, views, composite types, and foreign tables
* (which are the only relkinds for which pg_dump will dump per-column
* comments). In particular we wish to disallow comments on index
* columns, because the naming of an index's columns may change across PG
*/
if (relation->rd_rel->relkind != RELKIND_RELATION &&
relation->rd_rel->relkind != RELKIND_VIEW &&
- relation->rd_rel->relkind != RELKIND_COMPOSITE_TYPE)
+ relation->rd_rel->relkind != RELKIND_COMPOSITE_TYPE &&
+ relation->rd_rel->relkind != RELKIND_FOREIGN_TABLE)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("\"%s\" is not a table, view, or composite type",
+ errmsg("\"%s\" is not a table, view, composite type, or foreign table",
RelationGetRelationName(relation))));
}
#include "access/heapam.h"
#include "access/reloptions.h"
+#include "access/xact.h"
#include "catalog/catalog.h"
#include "catalog/dependency.h"
#include "catalog/indexing.h"
#include "catalog/objectaccess.h"
#include "catalog/pg_foreign_data_wrapper.h"
#include "catalog/pg_foreign_server.h"
+#include "catalog/pg_foreign_table.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_type.h"
#include "catalog/pg_user_mapping.h"
#include "commands/defrem.h"
#include "foreign/foreign.h"
#include "miscadmin.h"
+#include "nodes/execnodes.h"
#include "parser/parse_func.h"
#include "utils/acl.h"
#include "utils/builtins.h"
+#include "utils/fmgroids.h"
#include "utils/lsyscache.h"
#include "utils/rel.h"
#include "utils/syscache.h"
-
+#include "utils/tqual.h"
/*
* Convert a DefElem list to the text array format that is used in
* Convert a validator function name passed from the parser to an Oid.
*/
static Oid
-lookup_fdw_validator_func(List *validator)
+lookup_fdw_validator_func(DefElem *validator)
{
Oid funcargtypes[2];
+ if (validator == NULL || validator->arg == NULL)
+ return InvalidOid;
+
funcargtypes[0] = TEXTARRAYOID;
funcargtypes[1] = OIDOID;
- return LookupFuncName(validator, 2, funcargtypes, false);
+ return LookupFuncName((List *) validator->arg, 2, funcargtypes, false);
/* return value is ignored, so we don't check the type */
}
+static Oid
+lookup_fdw_handler_func(DefElem *handler)
+{
+ Oid handlerOid;
+
+ if (handler == NULL || handler->arg == NULL)
+ return InvalidOid;
+
+ /* check that handler have correct return type */
+ handlerOid = LookupFuncName((List *) handler->arg, 0, NULL, false);
+ if (get_func_rettype(handlerOid) != FDW_HANDLEROID)
+ {
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("function %s must return type \"fdw_handler\"",
+ NameListToString((List *) handler->arg))));
+ }
+
+ return handlerOid;
+}
+
+static void
+parse_func_options(List *func_options, DefElem **validator, DefElem **handler)
+{
+ ListCell *cell;
+
+ *validator = NULL;
+ *handler = NULL;
+ foreach (cell, func_options)
+ {
+ DefElem *def = lfirst(cell);
+
+ if (pg_strcasecmp(def->defname, "validator") == 0)
+ {
+ if (*validator)
+ elog(ERROR, "duplicated VALIDATOR");
+ *validator = def;
+ }
+ else if (pg_strcasecmp(def->defname, "handler") == 0)
+ {
+ if (*handler)
+ elog(ERROR, "duplicated HANDLER");
+ *handler = def;
+ }
+ else
+ {
+ elog(ERROR, "invalid option");
+ }
+ }
+}
/*
* Create a foreign-data wrapper
bool nulls[Natts_pg_foreign_data_wrapper];
HeapTuple tuple;
Oid fdwId;
+ DefElem *defvalidator;
+ DefElem *defhandler;
Oid fdwvalidator;
+ Oid fdwhandler;
Datum fdwoptions;
Oid ownerId;
DirectFunctionCall1(namein, CStringGetDatum(stmt->fdwname));
values[Anum_pg_foreign_data_wrapper_fdwowner - 1] = ObjectIdGetDatum(ownerId);
- if (stmt->validator)
- fdwvalidator = lookup_fdw_validator_func(stmt->validator);
- else
- fdwvalidator = InvalidOid;
+ /* determin which validator to be used (or not used at all) */
+ parse_func_options(stmt->func_options, &defvalidator, &defhandler);
+ fdwvalidator = lookup_fdw_validator_func(defvalidator);
+ fdwhandler = lookup_fdw_handler_func(defhandler);
values[Anum_pg_foreign_data_wrapper_fdwvalidator - 1] = fdwvalidator;
+ values[Anum_pg_foreign_data_wrapper_fdwhandler - 1] = fdwhandler;
nulls[Anum_pg_foreign_data_wrapper_fdwacl - 1] = true;
recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
}
+ if (fdwhandler != InvalidOid)
+ {
+ ObjectAddress myself;
+ ObjectAddress referenced;
+
+ myself.classId = ForeignDataWrapperRelationId;
+ myself.objectId = fdwId;
+ myself.objectSubId = 0;
+
+ referenced.classId = ProcedureRelationId;
+ referenced.objectId = fdwhandler;
+ referenced.objectSubId = 0;
+ recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
+ }
+
recordDependencyOnOwner(ForeignDataWrapperRelationId, fdwId, ownerId);
/* Post creation hook for new foreign data wrapper */
Oid fdwId;
bool isnull;
Datum datum;
+ DefElem *defvalidator;
+ DefElem *defhandler;
Oid fdwvalidator;
+ Oid fdwhandler;
/* Must be super user */
if (!superuser())
memset(repl_null, false, sizeof(repl_null));
memset(repl_repl, false, sizeof(repl_repl));
- if (stmt->change_validator)
+ parse_func_options(stmt->func_options, &defvalidator, &defhandler);
+
+ if (defvalidator)
{
- fdwvalidator = stmt->validator ? lookup_fdw_validator_func(stmt->validator) : InvalidOid;
+ fdwvalidator = lookup_fdw_validator_func(defvalidator);
repl_val[Anum_pg_foreign_data_wrapper_fdwvalidator - 1] = ObjectIdGetDatum(fdwvalidator);
repl_repl[Anum_pg_foreign_data_wrapper_fdwvalidator - 1] = true;
* It could be that the options for the FDW, SERVER and USER MAPPING
* are no longer valid with the new validator. Warn about this.
*/
- if (stmt->validator)
+ if (defvalidator->arg)
ereport(WARNING,
(errmsg("changing the foreign-data wrapper validator can cause "
"the options for dependent objects to become invalid")));
fdwvalidator = DatumGetObjectId(datum);
}
+ if (defhandler)
+ {
+ fdwhandler = lookup_fdw_handler_func(defhandler);
+ repl_val[Anum_pg_foreign_data_wrapper_fdwhandler - 1] = ObjectIdGetDatum(fdwhandler);
+ repl_repl[Anum_pg_foreign_data_wrapper_fdwhandler - 1] = true;
+
+ /*
+ * It could be that the behavior of accessing foreign table changes
+ * with the new handler. Warn about this.
+ */
+ if (defhandler->arg)
+ ereport(WARNING,
+ (errmsg("changing the foreign-data wrapper handler would change "
+ "the behavior of accessing foreign tables")));
+ }
+ else
+ {
+ /*
+ * Validator is not changed, but we need it for validating options.
+ */
+ datum = SysCacheGetAttr(FOREIGNDATAWRAPPEROID,
+ tp,
+ Anum_pg_foreign_data_wrapper_fdwhandler,
+ &isnull);
+ Assert(!isnull);
+ fdwhandler = DatumGetObjectId(datum);
+ }
+
/*
* Options specified, validate and update.
*/
heap_close(rel, RowExclusiveLock);
}
+
+/*
+ * Create a foreign table
+ * call after DefineRelation().
+ */
+void
+CreateForeignTable(CreateForeignTableStmt *stmt, Oid relid)
+{
+ Relation ftrel;
+ Datum ftoptions;
+ Datum values[Natts_pg_foreign_table];
+ bool nulls[Natts_pg_foreign_table];
+ HeapTuple tuple;
+ Oid ftId;
+ AclResult aclresult;
+ ObjectAddress myself;
+ ObjectAddress referenced;
+ Oid ownerId;
+ ForeignDataWrapper *fdw;
+ ForeignServer *server;
+
+ /*
+ * Advance command counter to ensure the pg_attribute tuple visible; the
+ * tuple might be updated to add constraints in previous step.
+ */
+ CommandCounterIncrement();
+
+ /*
+ * For now the owner cannot be specified on create. Use effective user ID.
+ */
+ ownerId = GetUserId();
+
+ /*
+ * Check that the foreign server exists and that we have USAGE on it. Also
+ * get the actual FDW for option validation etc.
+ */
+ server = GetForeignServerByName(stmt->servername, false);
+ aclresult = pg_foreign_server_aclcheck(server->serverid, ownerId, ACL_USAGE);
+ if (aclresult != ACLCHECK_OK)
+ aclcheck_error(aclresult, ACL_KIND_FOREIGN_SERVER, server->servername);
+
+ fdw = GetForeignDataWrapper(server->fdwid);
+
+ aclresult = pg_foreign_data_wrapper_aclcheck(fdw->fdwid, ownerId, ACL_USAGE);
+ if (aclresult != ACLCHECK_OK)
+ aclcheck_error(aclresult, ACL_KIND_FDW, fdw->fdwname);
+
+ /*
+ * Insert tuple into pg_foreign_table.
+ */
+ ftrel = heap_open(ForeignTableRelationId, RowExclusiveLock);
+
+ memset(values, 0, sizeof(values));
+ memset(nulls, false, sizeof(nulls));
+
+ values[Anum_pg_foreign_table_ftrelid - 1] = ObjectIdGetDatum(relid);
+ values[Anum_pg_foreign_table_ftserver - 1] = ObjectIdGetDatum(server->serverid);
+ /* Add table generic options */
+ ftoptions = transformGenericOptions(ForeignTableRelationId,
+ PointerGetDatum(NULL),
+ stmt->options,
+ fdw->fdwvalidator);
+
+ if (PointerIsValid(DatumGetPointer(ftoptions)))
+ values[Anum_pg_foreign_table_ftoptions - 1] = ftoptions;
+ else
+ nulls[Anum_pg_foreign_table_ftoptions - 1] = true;
+
+ tuple = heap_form_tuple(ftrel->rd_att, values, nulls);
+
+ /* pg_foreign_table don't have OID */
+ ftId = simple_heap_insert(ftrel, tuple);
+
+ CatalogUpdateIndexes(ftrel, tuple);
+
+ heap_freetuple(tuple);
+
+ /* Add pg_class dependency on the server */
+ myself.classId = RelationRelationId;
+ myself.objectId = relid;
+ myself.objectSubId = 0;
+
+ referenced.classId = ForeignServerRelationId;
+ referenced.objectId = server->serverid;
+ referenced.objectSubId = 0;
+ recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
+
+ heap_close(ftrel, NoLock);
+}
+
+/*
+ * ALTER FOREIGN TABLE <name> OPTIONS (...)
+ */
+void
+ATExecGenericOptions(Relation rel, List *options)
+{
+ Relation ftrel;
+ ForeignTable *table;
+ ForeignServer *server;
+ ForeignDataWrapper *fdw;
+ HeapTuple tuple;
+ bool isnull;
+ Datum repl_val[Natts_pg_foreign_table];
+ bool repl_null[Natts_pg_foreign_table];
+ bool repl_repl[Natts_pg_foreign_table];
+ Datum datum;
+
+ if (options == NIL)
+ return;
+
+ tuple = SearchSysCacheCopy1(FOREIGNTABLEREL, rel->rd_id);
+ if (!HeapTupleIsValid(tuple))
+ ereport(ERROR,
+ (errcode(ERRCODE_UNDEFINED_OBJECT),
+ errmsg("foreign table \"%s\" does not exist",
+ RelationGetRelationName(rel))));
+
+ table = GetForeignTable(rel->rd_id);
+ server = GetForeignServer(table->serverid);
+ fdw = GetForeignDataWrapper(server->fdwid);
+
+ memset(repl_val, 0, sizeof(repl_val));
+ memset(repl_null, false, sizeof(repl_null));
+ memset(repl_repl, false, sizeof(repl_repl));
+
+ /* Extract the current options */
+ datum = SysCacheGetAttr(FOREIGNTABLEREL,
+ tuple,
+ Anum_pg_foreign_table_ftoptions,
+ &isnull);
+ if (isnull)
+ datum = PointerGetDatum(NULL);
+
+ /* Transform the options */
+ datum = transformGenericOptions(ForeignTableRelationId,
+ datum,
+ options,
+ fdw->fdwvalidator);
+
+ if (PointerIsValid(DatumGetPointer(datum)))
+ repl_val[Anum_pg_foreign_table_ftoptions - 1] = datum;
+ else
+ repl_null[Anum_pg_foreign_table_ftoptions - 1] = true;
+
+ repl_repl[Anum_pg_foreign_table_ftoptions - 1] = true;
+
+ /* Everything looks good - update the tuple */
+
+ ftrel = heap_open(ForeignTableRelationId, RowExclusiveLock);
+
+ tuple = heap_modify_tuple(tuple, RelationGetDescr(ftrel),
+ repl_val, repl_null, repl_repl);
+
+ simple_heap_update(ftrel, &tuple->t_self, tuple);
+ CatalogUpdateIndexes(ftrel, tuple);
+
+ heap_close(ftrel, RowExclusiveLock);
+
+ heap_freetuple(tuple);
+}
aclcheck_error(aclresult, ACL_KIND_CLASS,
RelationGetRelationName(rel));
- /* Currently, we only allow plain tables to be locked */
- if (rel->rd_rel->relkind != RELKIND_RELATION)
+ /* Currently, we only allow plain tables and foreign tables to be locked */
+ if (rel->rd_rel->relkind != RELKIND_RELATION &&
+ rel->rd_rel->relkind != RELKIND_FOREIGN_TABLE)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("\"%s\" is not a table",
+ errmsg("\"%s\" is not a table or foreign table",
RelationGetRelationName(rel))));
/*
case OBJECT_SEQUENCE:
case OBJECT_TABLE:
case OBJECT_VIEW:
+ case OBJECT_FOREIGN_TABLE:
if (!pg_class_ownercheck(RelationGetRelid(relation), GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_CLASS,
RelationGetRelationName(relation));
#include "catalog/objectaccess.h"
#include "catalog/pg_constraint.h"
#include "catalog/pg_depend.h"
+#include "catalog/pg_foreign_table.h"
#include "catalog/pg_inherits.h"
#include "catalog/pg_inherits_fn.h"
#include "catalog/pg_namespace.h"
#include "commands/trigger.h"
#include "commands/typecmds.h"
#include "executor/executor.h"
+#include "foreign/foreign.h"
#include "miscadmin.h"
#include "nodes/makefuncs.h"
#include "nodes/nodeFuncs.h"
gettext_noop("type \"%s\" does not exist, skipping"),
gettext_noop("\"%s\" is not a type"),
gettext_noop("Use DROP TYPE to remove a type.")},
+ {RELKIND_FOREIGN_TABLE,
+ ERRCODE_UNDEFINED_OBJECT,
+ gettext_noop("foreign table \"%s\" does not exist"),
+ gettext_noop("foreign table \"%s\" does not exist, skipping"),
+ gettext_noop("\"%s\" is not a foreign table"),
+ gettext_noop("Use DROP FOREIGN TABLE to remove a foreign table.")},
{'\0', 0, NULL, NULL, NULL, NULL}
};
static void ATRewriteTables(List **wqueue, LOCKMODE lockmode);
static void ATRewriteTable(AlteredTableInfo *tab, Oid OIDNewHeap, LOCKMODE lockmode);
static AlteredTableInfo *ATGetQueueEntry(List **wqueue, Relation rel);
-static void ATSimplePermissions(Relation rel, bool allowView, bool allowType);
+static void ATSimplePermissions(Relation rel, bool allowView, bool allowType, bool allowForeignTable);
static void ATSimplePermissionsRelationOrIndex(Relation rel);
static void ATSimpleRecursion(List **wqueue, Relation rel,
AlterTableCmd *cmd, bool recurse, LOCKMODE lockmode);
/*
* RemoveRelations
- * Implements DROP TABLE, DROP INDEX, DROP SEQUENCE, DROP VIEW
+ * Implements DROP TABLE, DROP INDEX, DROP SEQUENCE, DROP VIEW,
+ * DROP FOREIGN TABLE
*/
void
RemoveRelations(DropStmt *drop)
relkind = RELKIND_VIEW;
break;
+ case OBJECT_FOREIGN_TABLE:
+ relkind = RELKIND_FOREIGN_TABLE;
+ break;
+
default:
elog(ERROR, "unrecognized drop object type: %d",
(int) drop->removeType);
if (relkind != RELKIND_RELATION &&
relkind != RELKIND_VIEW &&
relkind != RELKIND_COMPOSITE_TYPE &&
- relkind != RELKIND_INDEX)
+ relkind != RELKIND_INDEX &&
+ relkind != RELKIND_FOREIGN_TABLE)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("\"%s\" is not a table, view, composite type or index",
+ errmsg("\"%s\" is not a table, view, composite type,index or foreign table",
RelationGetRelationName(targetrelation))));
/*
RelationGetRelationName(rel))));
break;
+ case OBJECT_FOREIGN_TABLE:
+ if (rel->rd_rel->relkind != RELKIND_FOREIGN_TABLE)
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("\"%s\" is not a foreign table",
+ RelationGetRelationName(rel))));
+ break;
+
default:
elog(ERROR, "unrecognized object type: %d", (int) stmt->relkind);
}
case AT_SetTableSpace: /* must rewrite heap */
case AT_DropNotNull: /* may change some SQL plans */
case AT_SetNotNull:
+ case AT_GenericOptions:
cmd_lockmode = AccessExclusiveLock;
break;
switch (cmd->subtype)
{
case AT_AddColumn: /* ADD COLUMN */
- ATSimplePermissions(rel, false, true);
+ ATSimplePermissions(rel, false, true, true);
/* Performs own recursion */
ATPrepAddColumn(wqueue, rel, recurse, recursing, cmd, lockmode);
pass = AT_PASS_ADD_COL;
break;
case AT_AddColumnToView: /* add column via CREATE OR REPLACE
* VIEW */
- ATSimplePermissions(rel, true, false);
+ ATSimplePermissions(rel, true, false, false);
/* Performs own recursion */
ATPrepAddColumn(wqueue, rel, recurse, recursing, cmd, lockmode);
pass = AT_PASS_ADD_COL;
* substitutes default values into INSERTs before it expands
* rules.
*/
- ATSimplePermissions(rel, true, false);
+ ATSimplePermissions(rel, true, false, true);
ATSimpleRecursion(wqueue, rel, cmd, recurse, lockmode);
/* No command-specific prep needed */
pass = cmd->def ? AT_PASS_ADD_CONSTR : AT_PASS_DROP;
break;
case AT_DropNotNull: /* ALTER COLUMN DROP NOT NULL */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, true);
ATSimpleRecursion(wqueue, rel, cmd, recurse, lockmode);
/* No command-specific prep needed */
pass = AT_PASS_DROP;
break;
case AT_SetNotNull: /* ALTER COLUMN SET NOT NULL */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, true);
ATSimpleRecursion(wqueue, rel, cmd, recurse, lockmode);
/* No command-specific prep needed */
pass = AT_PASS_ADD_CONSTR;
pass = AT_PASS_MISC;
break;
case AT_SetStorage: /* ALTER COLUMN SET STORAGE */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, false);
ATSimpleRecursion(wqueue, rel, cmd, recurse, lockmode);
/* No command-specific prep needed */
pass = AT_PASS_MISC;
break;
case AT_DropColumn: /* DROP COLUMN */
- ATSimplePermissions(rel, false, true);
+ ATSimplePermissions(rel, false, true, true);
ATPrepDropColumn(wqueue, rel, recurse, recursing, cmd, lockmode);
/* Recursion occurs during execution phase */
pass = AT_PASS_DROP;
break;
case AT_AddIndex: /* ADD INDEX */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, false);
/* This command never recurses */
/* No command-specific prep needed */
pass = AT_PASS_ADD_INDEX;
break;
case AT_AddConstraint: /* ADD CONSTRAINT */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, true);
/* Recursion occurs during execution phase */
/* No command-specific prep needed except saving recurse flag */
if (recurse)
pass = AT_PASS_ADD_CONSTR;
break;
case AT_DropConstraint: /* DROP CONSTRAINT */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, true);
/* Recursion occurs during execution phase */
/* No command-specific prep needed except saving recurse flag */
if (recurse)
pass = AT_PASS_DROP;
break;
case AT_AlterColumnType: /* ALTER COLUMN TYPE */
- ATSimplePermissions(rel, false, true);
+ ATSimplePermissions(rel, false, true, true);
/* Performs own recursion */
ATPrepAlterColumnType(wqueue, tab, rel, recurse, recursing, cmd, lockmode);
pass = AT_PASS_ALTER_TYPE;
break;
case AT_ClusterOn: /* CLUSTER ON */
case AT_DropCluster: /* SET WITHOUT CLUSTER */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, false);
/* These commands never recurse */
/* No command-specific prep needed */
pass = AT_PASS_MISC;
break;
case AT_AddOids: /* SET WITH OIDS */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, false);
/* Performs own recursion */
if (!rel->rd_rel->relhasoids || recursing)
ATPrepAddOids(wqueue, rel, recurse, cmd, lockmode);
pass = AT_PASS_ADD_COL;
break;
case AT_DropOids: /* SET WITHOUT OIDS */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, false);
/* Performs own recursion */
if (rel->rd_rel->relhasoids)
{
pass = AT_PASS_MISC;
break;
case AT_AddInherit: /* INHERIT */
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, true);
/* This command never recurses */
ATPrepAddInherit(rel);
pass = AT_PASS_MISC;
case AT_EnableAlwaysRule:
case AT_EnableReplicaRule:
case AT_DisableRule:
+ ATSimplePermissions(rel, false, false, false);
+ /* These commands never recurse */
+ /* No command-specific prep needed */
+ pass = AT_PASS_MISC;
+ break;
case AT_DropInherit: /* NO INHERIT */
- ATSimplePermissions(rel, false, false);
+ case AT_GenericOptions:
+ ATSimplePermissions(rel, false, false, true);
/* These commands never recurse */
/* No command-specific prep needed */
pass = AT_PASS_MISC;
case AT_DropInherit:
ATExecDropInherit(rel, (RangeVar *) cmd->def, lockmode);
break;
+ case AT_GenericOptions:
+ ATExecGenericOptions(rel, (List *) cmd->def);
+ break;
default: /* oops */
elog(ERROR, "unrecognized alter table type: %d",
(int) cmd->subtype);
{
AlteredTableInfo *tab = (AlteredTableInfo *) lfirst(ltab);
+ /* If it's a foreign table, no need to rewrite it. */
+ if (tab->relkind == RELKIND_FOREIGN_TABLE)
+ continue;
+
/*
* We only need to rewrite the table if at least one column needs to
* be recomputed, or we are adding/removing the OID column.
* - Ensure that it is not a system table
*/
static void
-ATSimplePermissions(Relation rel, bool allowView, bool allowType)
+ATSimplePermissions(Relation rel, bool allowView, bool allowType, bool allowForeignTable)
{
+ int relkind = rel->rd_rel->relkind;
+
if (rel->rd_rel->relkind != RELKIND_RELATION)
{
- if (allowView)
- {
- if (rel->rd_rel->relkind != RELKIND_VIEW)
- ereport(ERROR,
- (errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("\"%s\" is not a table or view",
- RelationGetRelationName(rel))));
- }
- else if (allowType)
+ StringInfoData allowed;
+
+ initStringInfo(&allowed);
+ appendStringInfo(&allowed, "table%s%s%s",
+ allowView ? " or view" : "",
+ allowType ? " or composite type" : "",
+ allowForeignTable ? " or foreign table" : "");
+
+ if ((relkind == RELKIND_VIEW && !allowView) ||
+ (relkind == RELKIND_COMPOSITE_TYPE && !allowType) ||
+ (relkind == RELKIND_FOREIGN_TABLE && !allowForeignTable))
{
- if (rel->rd_rel->relkind != RELKIND_COMPOSITE_TYPE)
- ereport(ERROR,
- (errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("\"%s\" is not a table or composite type",
- RelationGetRelationName(rel))));
- }
- else
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("\"%s\" is not a table",
- RelationGetRelationName(rel))));
+ errmsg("\"%s\" is not a %s",
+ RelationGetRelationName(rel), allowed.data)));
+ }
+ pfree(allowed.data);
}
/* Permissions checks */
if (!pg_class_ownercheck(RelationGetRelid(rel), GetUserId()))
- aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_CLASS,
+ aclcheck_error(ACLCHECK_NOT_OWNER,
+ relkind == RELKIND_FOREIGN_TABLE ?
+ ACL_KIND_FOREIGN_TABLE : ACL_KIND_CLASS,
RelationGetRelationName(rel));
if (!allowSystemTableMods && IsSystemRelation(rel))
/* At top level, permission check was done in ATPrepCmd, else do it */
if (recursing)
- ATSimplePermissions(rel, false, true);
+ ATSimplePermissions(rel, false, true, true);
/*
* get the number of the attribute
/* At top level, permission check was done in ATPrepCmd, else do it */
if (recursing)
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, true);
/*
* Call AddRelationNewConstraints to do the work, making sure it works on
/* At top level, permission check was done in ATPrepCmd, else do it */
if (recursing)
- ATSimplePermissions(rel, false, false);
+ ATSimplePermissions(rel, false, false, true);
conrel = heap_open(ConstraintRelationId, RowExclusiveLock);
{
case RELKIND_RELATION:
case RELKIND_VIEW:
+ case RELKIND_FOREIGN_TABLE:
/* ok to change owner */
break;
case RELKIND_INDEX:
default:
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("\"%s\" is not a table, view, or sequence",
+ errmsg("\"%s\" is not a table, view, sequence, or foreign tabl, or foreign tablee",
NameStr(tuple_class->relname))));
}
* Must be owner of both parent and child -- child was checked by
* ATSimplePermissions call in ATPrepCmd
*/
- ATSimplePermissions(parent_rel, false, false);
+ ATSimplePermissions(parent_rel, false, false, true);
/* Permanent rels cannot inherit from temporary ones */
if (RelationUsesTempNamespace(parent_rel)
RelationGetRelationName(rel))));
break;
+ case OBJECT_FOREIGN_TABLE:
+ if (rel->rd_rel->relkind != RELKIND_FOREIGN_TABLE)
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("\"%s\" is not a foreign table",
+ RelationGetRelationName(rel))));
+ break;
+
default:
elog(ERROR, "unrecognized object type: %d", (int) stmttype);
}
{
case RELKIND_RELATION:
case RELKIND_VIEW:
+ case RELKIND_FOREIGN_TABLE:
/* ok to change schema */
break;
case RELKIND_SEQUENCE:
default:
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
- errmsg("\"%s\" is not a table, view, or sequence",
+ errmsg("\"%s\" is not a table, view, sequence, or foreign table",
RelationGetRelationName(rel))));
}
onerel->rd_rel->relkind != RELKIND_TOASTVALUE)
{
ereport(WARNING,
- (errmsg("skipping \"%s\" --- cannot vacuum indexes, views, or special system tables",
+ (errmsg("skipping \"%s\" --- cannot vacuum indexes, views, foreign tables or special system tables",
RelationGetRelationName(onerel))));
relation_close(onerel, lmode);
PopActiveSnapshot();
#include "catalog/namespace.h"
#include "catalog/pg_foreign_data_wrapper.h"
#include "catalog/pg_foreign_server.h"
+#include "catalog/pg_foreign_table.h"
#include "catalog/pg_type.h"
#include "catalog/pg_user_mapping.h"
#include "foreign/foreign.h"
fdw->owner = fdwform->fdwowner;
fdw->fdwname = pstrdup(NameStr(fdwform->fdwname));
fdw->fdwvalidator = fdwform->fdwvalidator;
+ fdw->fdwhandler = fdwform->fdwhandler;
/* Extract the options */
datum = SysCacheGetAttr(FOREIGNDATAWRAPPEROID,
PG_RETURN_BOOL(true);
}
+
+/*
+ * GetForeignTable - look up the foreign table definition by relation oid.
+ */
+ForeignTable *
+GetForeignTable(Oid relid)
+{
+ Form_pg_foreign_table tableform;
+ ForeignTable *ft;
+ HeapTuple tp;
+ Datum datum;
+ bool isnull;
+
+ tp = SearchSysCache(FOREIGNTABLEREL,
+ ObjectIdGetDatum(relid),
+ 0, 0, 0);
+
+ if (!HeapTupleIsValid(tp))
+ elog(ERROR, "cache lookup failed for foreign table %u", relid);
+
+ tableform = (Form_pg_foreign_table) GETSTRUCT(tp);
+
+ ft = palloc(sizeof(ForeignTable));
+ ft->relid = relid;
+ ft->serverid = tableform->ftserver;
+
+ /* Extract the ftoptions */
+ datum = SysCacheGetAttr(FOREIGNTABLEREL,
+ tp,
+ Anum_pg_foreign_table_ftoptions,
+ &isnull);
+
+ /* untransformRelOptions does exactly what we want - avoid duplication */
+ ft->options = untransformRelOptions(datum);
+ ReleaseSysCache(tp);
+
+ return ft;
+}
+
+/*
+ * Determine the relation is a foreign table.
+ */
+bool
+IsForeignTable(Oid relid)
+{
+ HeapTuple tuple;
+ Form_pg_class classForm;
+ char relkind;
+
+ tuple = SearchSysCache1(RELOID, ObjectIdGetDatum(relid));
+ if (!HeapTupleIsValid(tuple))
+ ereport(ERROR,
+ (errcode(ERRCODE_UNDEFINED_TABLE),
+ errmsg("relation with OID %u does not exist", relid)));
+ classForm = (Form_pg_class) GETSTRUCT(tuple);
+ relkind = classForm->relkind;
+ ReleaseSysCache(tuple);
+
+ return (relkind == RELKIND_FOREIGN_TABLE);
+}
+
+/*
+ * Get fdwvalidator of the foreign table without generating ForeignTable,
+ * ForeignServer and ForeignDataWrapper.
+ */
+Oid
+GetFdwValidator(Oid relid)
+{
+ HeapTuple tuple;
+ Oid serverid;
+ Oid fdwid;
+ Oid fdwvalidator;
+ Form_pg_foreign_table form_ft;
+ Form_pg_foreign_server form_srv;
+ Form_pg_foreign_data_wrapper form_fdw;
+
+ /* pg_foreign_table */
+ tuple = SearchSysCache(FOREIGNTABLEREL,
+ ObjectIdGetDatum(relid),
+ 0, 0, 0);
+ if (!HeapTupleIsValid(tuple))
+ ereport(ERROR,
+ (errcode(ERRCODE_UNDEFINED_OBJECT),
+ errmsg("foreign table reference \"%u\" is ambiguous", relid)));
+ form_ft = (Form_pg_foreign_table) GETSTRUCT(tuple);
+ serverid = form_ft->ftserver;
+ ReleaseSysCache(tuple);
+
+ /* pg_foreign_server */
+ tuple = SearchSysCache1(FOREIGNSERVEROID,
+ ObjectIdGetDatum(serverid));
+ if (!HeapTupleIsValid(tuple))
+ ereport(ERROR,
+ (errcode(ERRCODE_UNDEFINED_OBJECT),
+ errmsg("foreign server reference \"%u\" is ambiguous",
+ serverid)));
+ form_srv = (Form_pg_foreign_server) GETSTRUCT(tuple);
+ fdwid = form_srv->srvfdw;
+ ReleaseSysCache(tuple);
+
+ /* pg_foreign_table */
+ tuple = SearchSysCache1(FOREIGNDATAWRAPPEROID,
+ ObjectIdGetDatum(fdwid));
+ if (!HeapTupleIsValid(tuple))
+ ereport(ERROR,
+ (errcode(ERRCODE_UNDEFINED_OBJECT),
+ errmsg("foreign-data wrapper reference \"%u\" is ambiguous",
+ fdwid)));
+ form_fdw = (Form_pg_foreign_data_wrapper) GETSTRUCT(tuple);
+ fdwvalidator = form_fdw->fdwvalidator;
+ ReleaseSysCache(tuple);
+
+ return fdwvalidator;
+}
+
+/*
+ * Flattern generic options into keywords and values buffers.
+ */
+int
+flatten_generic_options(List *options, const char **keywords,
+ const char **values)
+{
+ ListCell *cell;
+ int n = 0;
+
+ foreach(cell, options)
+ {
+ DefElem *def = lfirst(cell);
+
+ keywords[n] = def->defname;
+ values[n] = strVal(def->arg);
+ n++;
+ }
+ return n;
+}
CreateFdwStmt *newnode = makeNode(CreateFdwStmt);
COPY_STRING_FIELD(fdwname);
- COPY_NODE_FIELD(validator);
+ COPY_NODE_FIELD(func_options);
COPY_NODE_FIELD(options);
return newnode;
AlterFdwStmt *newnode = makeNode(AlterFdwStmt);
COPY_STRING_FIELD(fdwname);
- COPY_NODE_FIELD(validator);
- COPY_SCALAR_FIELD(change_validator);
+ COPY_NODE_FIELD(func_options);
COPY_NODE_FIELD(options);
return newnode;
return newnode;
}
+static CreateForeignTableStmt *
+_copyCreateForeignTableStmt(CreateForeignTableStmt *from)
+{
+ CreateForeignTableStmt *newnode = makeNode(CreateForeignTableStmt);
+
+ COPY_NODE_FIELD(base.relation);
+ COPY_NODE_FIELD(base.tableElts);
+ COPY_NODE_FIELD(base.inhRelations);
+ COPY_NODE_FIELD(base.ofTypename);
+ COPY_NODE_FIELD(base.constraints);
+ COPY_NODE_FIELD(base.options);
+ COPY_SCALAR_FIELD(base.oncommit);
+ COPY_STRING_FIELD(base.tablespacename);
+ COPY_STRING_FIELD(servername);
+ COPY_NODE_FIELD(options);
+
+ return newnode;
+}
+
static CreateTrigStmt *
_copyCreateTrigStmt(CreateTrigStmt *from)
{
case T_DropUserMappingStmt:
retval = _copyDropUserMappingStmt(from);
break;
+ case T_CreateForeignTableStmt:
+ retval = _copyCreateForeignTableStmt(from);
+ break;
case T_CreateTrigStmt:
retval = _copyCreateTrigStmt(from);
break;
_equalCreateFdwStmt(CreateFdwStmt *a, CreateFdwStmt *b)
{
COMPARE_STRING_FIELD(fdwname);
- COMPARE_NODE_FIELD(validator);
+ COMPARE_NODE_FIELD(func_options);
COMPARE_NODE_FIELD(options);
return true;
_equalAlterFdwStmt(AlterFdwStmt *a, AlterFdwStmt *b)
{
COMPARE_STRING_FIELD(fdwname);
- COMPARE_NODE_FIELD(validator);
- COMPARE_SCALAR_FIELD(change_validator);
+ COMPARE_NODE_FIELD(func_options);
COMPARE_NODE_FIELD(options);
return true;
return true;
}
+static bool
+_equalCreateForeignTableStmt(CreateForeignTableStmt *a, CreateForeignTableStmt *b)
+{
+ if (!_equalCreateStmt(&a->base, &b->base))
+ return false;
+
+ COMPARE_STRING_FIELD(base.tablespacename);
+ COMPARE_STRING_FIELD(servername);
+ COMPARE_NODE_FIELD(options);
+
+ return true;
+}
+
static bool
_equalCreateTrigStmt(CreateTrigStmt *a, CreateTrigStmt *b)
{
case T_DropUserMappingStmt:
retval = _equalDropUserMappingStmt(a, b);
break;
+ case T_CreateForeignTableStmt:
+ retval = _equalCreateForeignTableStmt(a, b);
+ break;
case T_CreateTrigStmt:
retval = _equalCreateTrigStmt(a, b);
break;
#include "catalog/pg_type.h"
#include "nodes/makefuncs.h"
#include "nodes/nodeFuncs.h"
+#include "nodes/pg_list.h"
#include "optimizer/var.h"
#include "parser/analyze.h"
#include "parser/parse_agg.h"
#include "parser/parse_target.h"
#include "parser/parsetree.h"
#include "rewrite/rewriteManip.h"
+#include "utils/lsyscache.h"
#include "utils/rel.h"
bool forUpdate, bool noWait, bool pushedDown)
{
RowMarkClause *rc;
+ RangeTblEntry *rte;
+
+ /* If rangetable is a foreign table, locking is not allowed */
+ rte = list_nth(qry->rtable, rtindex - 1);
+ if (rte->rtekind == RTE_RELATION &&
+ get_rel_relkind(rte->relid) == RELKIND_FOREIGN_TABLE)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("SELECT FOR UPDATE/SHARE is not allowed with foreign tables")));
/* If it's an explicit clause, make sure hasForUpdate gets set */
if (!pushedDown)
AlterDatabaseStmt AlterDatabaseSetStmt AlterDomainStmt AlterEnumStmt
AlterFdwStmt AlterForeignServerStmt AlterGroupStmt
AlterObjectSchemaStmt AlterOwnerStmt AlterSeqStmt AlterTableStmt
+ AlterForeignTableStmt
AlterCompositeTypeStmt AlterUserStmt AlterUserMappingStmt AlterUserSetStmt
AlterRoleStmt AlterRoleSetStmt
AlterDefaultPrivilegesStmt DefACLAction
CreateDomainStmt CreateGroupStmt CreateOpClassStmt
CreateOpFamilyStmt AlterOpFamilyStmt CreatePLangStmt
CreateSchemaStmt CreateSeqStmt CreateStmt CreateTableSpaceStmt
- CreateFdwStmt CreateForeignServerStmt CreateAssertStmt CreateTrigStmt
+ CreateFdwStmt CreateForeignServerStmt CreateForeignTableStmt
+ CreateAssertStmt CreateTrigStmt
CreateUserStmt CreateUserMappingStmt CreateRoleStmt
CreatedbStmt DeclareCursorStmt DefineStmt DeleteStmt DiscardStmt DoStmt
DropGroupStmt DropOpClassStmt DropOpFamilyStmt DropPLangStmt DropStmt
%type <node> alter_column_default opclass_item opclass_drop alter_using
%type <ival> add_drop opt_asc_desc opt_nulls_order
-%type <node> alter_table_cmd alter_type_cmd
-%type <list> alter_table_cmds alter_type_cmds
+%type <node> alter_table_cmd alter_type_cmd alter_foreign_table_cmd
+%type <list> alter_table_cmds alter_type_cmds alter_foreign_table_cmds
%type <dbehavior> opt_drop_behavior
%type <list> stmtblock stmtmulti
OptTableElementList TableElementList OptInherit definition
OptTypedTableElementList TypedTableElementList
+ OptForeignTableElementList ForeignTableElementList
reloptions opt_reloptions
OptWith opt_distinct opt_definition func_args func_args_list
func_args_with_defaults func_args_with_defaults_list
create_generic_options alter_generic_options
relation_expr_list dostmt_opt_list
+%type <list> opt_func_options func_options
+%type <defelt> fdw_option
+
%type <range> OptTempTableName
%type <into> into_clause create_as_target
%type <vsetstmt> set_rest SetResetClause
%type <node> TableElement TypedTableElement ConstraintElem TableFuncElement
+ ForeignTableElement ForeignConstraintElem
+%type <node> CheckConstraintElem UniqueConstraintElem PrimaryKeyConstraintElem
+ ExcludeConstraintElem ForeignKeyConstraintElem
%type <node> columnDef columnOptions
+ foreignColumnDef
%type <defelt> def_elem reloption_elem old_aggr_elem
%type <node> def_arg columnElem where_clause where_or_current_clause
a_expr b_expr c_expr func_expr AexprConst indirection_el
%type <keyword> unreserved_keyword type_func_name_keyword
%type <keyword> col_name_keyword reserved_keyword
-%type <node> TableConstraint TableLikeClause
+%type <node> TableConstraint TableLikeClause ForeignTableLikeClause
+ ForeignTableConstraint
%type <ival> TableLikeOptionList TableLikeOption
-%type <list> ColQualList
+%type <ival> ForeignTableLikeOptionList ForeignTableLikeOption
+%type <list> ColQualList ForeignColQualList
%type <node> ColConstraint ColConstraintElem ConstraintAttr
+ ColNotNullConstraintElem ColNullConstraintElem
+ ColCheckConstraintElem
+ ForeignColConstraint ForeignColConstraintElem
%type <ival> key_actions key_delete key_match key_update key_action
%type <ival> ConstraintAttributeSpec ConstraintDeferrabilitySpec
ConstraintTimeSpec
| AlterEnumStmt
| AlterFdwStmt
| AlterForeignServerStmt
+ | AlterForeignTableStmt
| AlterFunctionStmt
| AlterGroupStmt
| AlterObjectSchemaStmt
| CreateDomainStmt
| CreateFdwStmt
| CreateForeignServerStmt
+ | CreateForeignTableStmt
| CreateFunctionStmt
| CreateGroupStmt
| CreateOpClassStmt
* or be part of a_expr NOT LIKE or similar constructs).
*/
ColConstraintElem:
- NOT NULL_P
- {
- Constraint *n = makeNode(Constraint);
- n->contype = CONSTR_NOTNULL;
- n->location = @1;
- $$ = (Node *)n;
- }
- | NULL_P
- {
- Constraint *n = makeNode(Constraint);
- n->contype = CONSTR_NULL;
- n->location = @1;
- $$ = (Node *)n;
- }
+ ColNotNullConstraintElem { $$ = $1; }
+ | ColNullConstraintElem { $$ = $1; }
| UNIQUE opt_definition OptConsTableSpace
{
Constraint *n = makeNode(Constraint);
n->indexspace = $4;
$$ = (Node *)n;
}
- | CHECK '(' a_expr ')'
- {
- Constraint *n = makeNode(Constraint);
- n->contype = CONSTR_CHECK;
- n->location = @1;
- n->raw_expr = $3;
- n->cooked_expr = NULL;
- $$ = (Node *)n;
- }
+ | ColCheckConstraintElem { $$ = $1; }
| DEFAULT b_expr
{
Constraint *n = makeNode(Constraint);
}
;
+ColNotNullConstraintElem: NOT NULL_P
+ {
+ Constraint *n = makeNode(Constraint);
+ n->contype = CONSTR_NOTNULL;
+ n->location = @1;
+ $$ = (Node *)n;
+ }
+ ;
+
+ColNullConstraintElem: NULL_P
+ {
+ Constraint *n = makeNode(Constraint);
+ n->contype = CONSTR_NULL;
+ n->location = @1;
+ $$ = (Node *)n;
+ }
+ ;
+
+ColCheckConstraintElem: CHECK '(' a_expr ')'
+ {
+ Constraint *n = makeNode(Constraint);
+ n->contype = CONSTR_CHECK;
+ n->location = @1;
+ n->raw_expr = $3;
+ n->cooked_expr = NULL;
+ $$ = (Node *)n;
+ }
+ ;
+
/*
* ConstraintAttr represents constraint attributes, which we parse as if
* they were independent constraint clauses, in order to avoid shift/reduce
| ALL { $$ = CREATE_TABLE_LIKE_ALL; }
;
+ForeignTableLikeClause:
+ LIKE qualified_name ForeignTableLikeOptionList
+ {
+ InhRelation *n = makeNode(InhRelation);
+ n->relation = $2;
+ n->options = $3;
+ $$ = (Node *)n;
+ }
+ ;
+
+ForeignTableLikeOptionList:
+ ForeignTableLikeOptionList INCLUDING ForeignTableLikeOption
+ { $$ = $1 | $3; }
+ | ForeignTableLikeOptionList EXCLUDING ForeignTableLikeOption
+ { $$ = $1 & ~$3; }
+ | /* EMPTY */ { $$ = 0; }
+ ;
+
+ForeignTableLikeOption:
+ CONSTRAINTS { $$ = CREATE_TABLE_LIKE_CONSTRAINTS; }
+ | COMMENTS { $$ = CREATE_TABLE_LIKE_COMMENTS; }
+ | ALL { $$ = CREATE_TABLE_LIKE_FOREIGN_ALL; }
+ ;
+
/* ConstraintElem specifies constraint syntax which is not embedded into
* a column definition. ColConstraintElem specifies the embedded form.
| ConstraintElem { $$ = $1; }
;
+ForeignTableConstraint:
+ CONSTRAINT name ForeignConstraintElem
+ {
+ Constraint *n = (Constraint *) $3;
+ Assert(IsA(n, Constraint));
+ n->conname = $2;
+ n->location = @1;
+ $$ = (Node *) n;
+ }
+ | ForeignConstraintElem { $$ = $1; }
+ ;
+
+
ConstraintElem:
+ CheckConstraintElem { $$ = $1; }
+ | UniqueConstraintElem { $$ = $1; }
+ | PrimaryKeyConstraintElem { $$ = $1; }
+ | ExcludeConstraintElem { $$ = $1; }
+ | ForeignKeyConstraintElem { $$ = $1; }
+ ;
+
+ForeignConstraintElem:
+ CheckConstraintElem { $$ = $1; }
+ ;
+
+CheckConstraintElem:
CHECK '(' a_expr ')' ConstraintAttributeSpec
{
Constraint *n = makeNode(Constraint);
parser_errposition(@5)));
$$ = (Node *)n;
}
- | UNIQUE '(' columnList ')' opt_definition OptConsTableSpace
+ ;
+
+UniqueConstraintElem:
+ UNIQUE '(' columnList ')' opt_definition OptConsTableSpace
ConstraintAttributeSpec
{
Constraint *n = makeNode(Constraint);
n->initdeferred = ($7 & 2) != 0;
$$ = (Node *)n;
}
- | PRIMARY KEY '(' columnList ')' opt_definition OptConsTableSpace
+ ;
+
+PrimaryKeyConstraintElem:
+ PRIMARY KEY '(' columnList ')' opt_definition OptConsTableSpace
ConstraintAttributeSpec
{
Constraint *n = makeNode(Constraint);
n->initdeferred = ($8 & 2) != 0;
$$ = (Node *)n;
}
- | EXCLUDE access_method_clause '(' ExclusionConstraintList ')'
+ ;
+
+ExcludeConstraintElem:
+ EXCLUDE access_method_clause '(' ExclusionConstraintList ')'
opt_definition OptConsTableSpace ExclusionWhereClause
ConstraintAttributeSpec
{
n->initdeferred = ($9 & 2) != 0;
$$ = (Node *)n;
}
- | FOREIGN KEY '(' columnList ')' REFERENCES qualified_name
+ ;
+ForeignKeyConstraintElem:
+ FOREIGN KEY '(' columnList ')' REFERENCES qualified_name
opt_column_list key_match key_actions ConstraintAttributeSpec
{
Constraint *n = makeNode(Constraint);
*
*****************************************************************************/
-CreateFdwStmt: CREATE FOREIGN DATA_P WRAPPER name opt_validator create_generic_options
+CreateFdwStmt: CREATE FOREIGN DATA_P WRAPPER name opt_func_options create_generic_options
{
CreateFdwStmt *n = makeNode(CreateFdwStmt);
n->fdwname = $5;
- n->validator = $6;
+ n->func_options = $6;
n->options = $7;
$$ = (Node *) n;
}
;
+fdw_option:
+ VALIDATOR handler_name { $$ = makeDefElem("validator", (Node *)$2); }
+ | NO VALIDATOR { $$ = makeDefElem("validator", NULL); }
+ | HANDLER handler_name { $$ = makeDefElem("handler", (Node *)$2); }
+ | NO HANDLER { $$ = makeDefElem("handler", NULL); }
+ ;
+
+func_options:
+ fdw_option { $$ = list_make1($1); }
+ | func_options fdw_option { $$ = lappend($1, $2); }
+ ;
+
+opt_func_options:
+ func_options { $$ = $1; }
+ | /*EMPTY*/ { $$ = NIL; }
+ ;
+
/*****************************************************************************
*
* QUERY :
*
****************************************************************************/
-AlterFdwStmt: ALTER FOREIGN DATA_P WRAPPER name validator_clause alter_generic_options
+AlterFdwStmt: ALTER FOREIGN DATA_P WRAPPER name opt_func_options alter_generic_options
{
AlterFdwStmt *n = makeNode(AlterFdwStmt);
n->fdwname = $5;
- n->validator = $6;
- n->change_validator = true;
+ n->func_options = $6;
n->options = $7;
$$ = (Node *) n;
}
- | ALTER FOREIGN DATA_P WRAPPER name validator_clause
+ | ALTER FOREIGN DATA_P WRAPPER name func_options
{
AlterFdwStmt *n = makeNode(AlterFdwStmt);
n->fdwname = $5;
- n->validator = $6;
- n->change_validator = true;
- $$ = (Node *) n;
- }
- | ALTER FOREIGN DATA_P WRAPPER name alter_generic_options
- {
- AlterFdwStmt *n = makeNode(AlterFdwStmt);
- n->fdwname = $5;
- n->options = $6;
+ n->func_options = $6;
+ n->options = NIL;
$$ = (Node *) n;
}
;
}
;
+/*****************************************************************************
+ *
+ * QUERY:
+ * CREATE FORIGN TABLE relname (...) SERVER name (...)
+ *
+ *****************************************************************************/
+
+CreateForeignTableStmt:
+ CREATE FOREIGN TABLE qualified_name
+ OptForeignTableElementList OptInherit
+ SERVER name create_generic_options
+ {
+ CreateForeignTableStmt *n = makeNode(CreateForeignTableStmt);
+ $4->relpersistence = RELPERSISTENCE_PERMANENT;
+ n->base.relation = $4;
+ n->base.tableElts = $5;
+ n->base.inhRelations = $6;
+ /* FDW-specific data */
+ n->servername = $8;
+ n->options = $9;
+ $$ = (Node *) n;
+ }
+ ;
+
+OptForeignTableElementList:
+ '(' ForeignTableElementList ')' { $$ = $2; }
+ | '(' ')' { $$ = NIL; }
+ | /*EMPTY*/
+ {
+ /* TODO: import definitions from foreign server in this case. */
+ $$ = NIL;
+ }
+ ;
+
+ForeignTableElementList:
+ ForeignTableElement
+ {
+ $$ = list_make1($1);
+ }
+ | ForeignTableElementList ',' ForeignTableElement
+ {
+ $$ = lappend($1, $3);
+ }
+ ;
+
+ForeignTableElement:
+ foreignColumnDef { $$ = $1; }
+ | ForeignTableLikeClause { $$ = $1; }
+ | ForeignTableConstraint { $$ = $1; }
+ ;
+
+foreignColumnDef: ColId Typename ForeignColQualList
+ {
+ ColumnDef *n = makeNode(ColumnDef);
+ n->colname = $1;
+ n->typeName = $2;
+ n->constraints = $3;
+ n->is_local = true;
+ $$ = (Node *)n;
+ }
+ ;
+
+ForeignColQualList:
+ ForeignColQualList ForeignColConstraint { $$ = lappend($1, $2); }
+ | /*EMPTY*/ { $$ = NIL; }
+ ;
+
+ForeignColConstraint:
+ CONSTRAINT name ForeignColConstraintElem
+ {
+ Constraint *n = (Constraint *) $3;
+ Assert(IsA(n, Constraint));
+ n->conname = $2;
+ n->location = @1;
+ $$ = (Node *) n;
+ }
+ | ForeignColConstraintElem { $$ = $1; }
+ ;
+
+ForeignColConstraintElem:
+ ColNotNullConstraintElem { $$ = $1; }
+ | ColNullConstraintElem { $$ = $1; }
+ | ColCheckConstraintElem { $$ = $1; }
+ ;
+
+/*****************************************************************************
+ *
+ * QUERY:
+ * ALTER FORIGN TABLE relname ADD [COLUMN] column-definition;
+ * ALTER FORIGN TABLE relname DROP [COLUMN] name [CASCADE];
+ * ALTER FORIGN TABLE relname ALTER [COLUMN] name TYPE type;
+ * ALTER FORIGN TABLE relname ALTER [COLUMN] name SET [NOT] NULL;
+ * ALTER FORIGN TABLE relname ADD CONSTRAINT name;
+ * ALTER FORIGN TABLE relname DROP CONSTRAINT name;
+ * ALTER FORIGN TABLE relname INHERIT parent;
+ * ALTER FORIGN TABLE relname OWNER TO role;
+ * ALTER FORIGN TABLE relname OPTIONS (...);
+ *
+ *****************************************************************************/
+AlterForeignTableStmt:
+ ALTER FOREIGN TABLE relation_expr alter_foreign_table_cmds
+ {
+ AlterTableStmt *n = makeNode(AlterTableStmt);
+ n->relation = $4;
+ n->cmds = $5;
+ n->relkind = OBJECT_FOREIGN_TABLE;
+ $$ = (Node *)n;
+ }
+ ;
+
+alter_foreign_table_cmds:
+ alter_foreign_table_cmd { $$ = list_make1($1); }
+ | alter_foreign_table_cmds ',' alter_foreign_table_cmd
+ { $$ = lappend($1, $3); }
+ ;
+
+alter_foreign_table_cmd:
+ /* ALTER FOREIGN TABLE <name> ADD <coldef> */
+ ADD_P foreignColumnDef
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_AddColumn;
+ n->def = $2;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> ADD COLUMN <coldef> */
+ | ADD_P COLUMN foreignColumnDef
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_AddColumn;
+ n->def = $3;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> ALTER [COLUMN] <colname> DROP NOT NULL */
+ | ALTER opt_column ColId DROP NOT NULL_P
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_DropNotNull;
+ n->name = $3;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> ALTER [COLUMN] <colname> SET NOT NULL */
+ | ALTER opt_column ColId SET NOT NULL_P
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_SetNotNull;
+ n->name = $3;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> DROP [COLUMN] IF EXISTS <colname> [RESTRICT|CASCADE] */
+ | DROP opt_column IF_P EXISTS ColId opt_drop_behavior
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_DropColumn;
+ n->name = $5;
+ n->behavior = $6;
+ n->missing_ok = TRUE;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> DROP [COLUMN] <colname> [RESTRICT|CASCADE] */
+ | DROP opt_column ColId opt_drop_behavior
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_DropColumn;
+ n->name = $3;
+ n->behavior = $4;
+ n->missing_ok = FALSE;
+ $$ = (Node *)n;
+ }
+ /*
+ * ALTER FOREIGN TABLE <name> ALTER [COLUMN] <colname> [SET DATA] TYPE <typename>
+ */
+ | ALTER opt_column ColId opt_set_data TYPE_P Typename
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_AlterColumnType;
+ n->name = $3;
+ n->def = (Node *) $6;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> ADD CONSTRAINT ... */
+ | ADD_P ForeignTableConstraint
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_AddConstraint;
+ n->def = $2;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> DROP CONSTRAINT IF EXISTS <name> [RESTRICT|CASCADE] */
+ | DROP CONSTRAINT IF_P EXISTS name opt_drop_behavior
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_DropConstraint;
+ n->name = $5;
+ n->behavior = $6;
+ n->missing_ok = TRUE;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> DROP CONSTRAINT <name> [RESTRICT|CASCADE] */
+ | DROP CONSTRAINT name opt_drop_behavior
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_DropConstraint;
+ n->name = $3;
+ n->behavior = $4;
+ n->missing_ok = FALSE;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> INHERIT <parent> */
+ | INHERIT qualified_name
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_AddInherit;
+ n->def = (Node *) $2;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> NO INHERIT <parent> */
+ | NO INHERIT qualified_name
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_DropInherit;
+ n->def = (Node *) $3;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> OWNER TO RoleId */
+ | OWNER TO RoleId
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_ChangeOwner;
+ n->name = $3;
+ $$ = (Node *)n;
+ }
+ /* ALTER FOREIGN TABLE <name> OPTIONS (...) */
+ | alter_generic_options
+ {
+ AlterTableCmd *n = makeNode(AlterTableCmd);
+ n->subtype = AT_GenericOptions;
+ n->def = (Node *)$1;
+ $$ = (Node *) n;
+ }
+ ;
+
/*****************************************************************************
*
* QUERY:
| TEXT_P SEARCH DICTIONARY { $$ = OBJECT_TSDICTIONARY; }
| TEXT_P SEARCH TEMPLATE { $$ = OBJECT_TSTEMPLATE; }
| TEXT_P SEARCH CONFIGURATION { $$ = OBJECT_TSCONFIGURATION; }
+ | FOREIGN TABLE { $$ = OBJECT_FOREIGN_TABLE; }
;
any_name_list:
* CONVERSION | LANGUAGE | OPERATOR CLASS | LARGE OBJECT |
* CAST | COLUMN | SCHEMA | TABLESPACE | ROLE |
* TEXT SEARCH PARSER | TEXT SEARCH DICTIONARY |
- * TEXT SEARCH TEMPLATE |
- * TEXT SEARCH CONFIGURATION ] <objname> |
+ * TEXT SEARCH TEMPLATE | TEXT SEARCH CONFIGURATION |
+ * FOREIGN TABLE ] <objname> |
* AGGREGATE <aggname> (arg1, ...) |
* FUNCTION <funcname> (arg1, arg2, ...) |
* OPERATOR <op> (leftoperand_typ, rightoperand_typ) |
| CONVERSION_P { $$ = OBJECT_CONVERSION; }
| TABLESPACE { $$ = OBJECT_TABLESPACE; }
| ROLE { $$ = OBJECT_ROLE; }
+ | FOREIGN TABLE { $$ = OBJECT_FOREIGN_TABLE; }
;
comment_text:
n->objs = $3;
$$ = n;
}
+ | FOREIGN TABLE qualified_name_list
+ {
+ PrivTarget *n = (PrivTarget *) palloc(sizeof(PrivTarget));
+ n->targtype = ACL_TARGET_OBJECT;
+ n->objtype = ACL_OBJECT_FOREIGN_TABLE;
+ n->objs = $3;
+ $$ = n;
+ }
| FUNCTION function_with_argtypes_list
{
PrivTarget *n = (PrivTarget *) palloc(sizeof(PrivTarget));
n->newname = $6;
$$ = (Node *)n;
}
+ | ALTER FOREIGN TABLE relation_expr RENAME TO name
+ {
+ RenameStmt *n = makeNode(RenameStmt);
+ n->renameType = OBJECT_FOREIGN_TABLE;
+ n->relation = $4;
+ n->subname = NULL;
+ n->newname = $7;
+ $$ = (Node *)n;
+ }
| ALTER TABLE relation_expr RENAME opt_column name TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->newname = $8;
$$ = (Node *)n;
}
+ | ALTER FOREIGN TABLE relation_expr RENAME opt_column name TO name
+ {
+ RenameStmt *n = makeNode(RenameStmt);
+ n->renameType = OBJECT_COLUMN;
+ n->relation = $4;
+ n->subname = $7;
+ n->newname = $9;
+ $$ = (Node *)n;
+ }
| ALTER TRIGGER name ON qualified_name RENAME TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->newschema = $6;
$$ = (Node *)n;
}
+ | ALTER FOREIGN TABLE relation_expr SET SCHEMA name
+ {
+ AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
+ n->objectType = OBJECT_FOREIGN_TABLE;
+ n->relation = $4;
+ n->newschema = $7;
+ $$ = (Node *)n;
+ }
| ALTER TYPE_P any_name SET SCHEMA name
{
AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
/* State shared by transformCreateStmt and its subroutines */
typedef struct
{
- const char *stmtType; /* "CREATE TABLE" or "ALTER TABLE" */
+ const char *stmtType; /* "CREATE [FOREIGN] TABLE" or "ALTER TABLE" */
RangeVar *relation; /* relation to create */
Relation rel; /* opened/locked rel, if ALTER */
List *inhRelations; /* relations to inherit from */
pstate = make_parsestate(NULL);
pstate->p_sourcetext = queryString;
- cxt.stmtType = "CREATE TABLE";
+ if (IsA(stmt, CreateForeignServerStmt))
+ cxt.stmtType = "CREATE FOREIGN TABLE";
+ else
+ cxt.stmtType = "CREATE TABLE";
cxt.relation = stmt->relation;
cxt.rel = NULL;
cxt.inhRelations = stmt->inhRelations;
case T_AlterUserMappingStmt:
case T_DropUserMappingStmt:
case T_AlterTableSpaceOptionsStmt:
+ case T_CreateForeignTableStmt:
case T_SecLabelStmt:
PreventCommandIfReadOnly(CreateCommandTag(parsetree));
break;
break;
case T_CreateStmt:
+ case T_CreateForeignTableStmt:
{
List *stmts;
ListCell *l;
AlterTableCreateToastTable(relOid, toast_options);
}
+ else if (IsA(stmt, CreateForeignTableStmt))
+ {
+ /* Create the table itself */
+ relOid = DefineRelation((CreateStmt *) stmt,
+ RELKIND_FOREIGN_TABLE,
+ InvalidOid);
+
+ CreateForeignTable((CreateForeignTableStmt *) stmt,
+ relOid);
+ }
else
{
/* Recurse for anything else */
case OBJECT_SEQUENCE:
case OBJECT_VIEW:
case OBJECT_INDEX:
+ case OBJECT_FOREIGN_TABLE:
RemoveRelations(stmt);
break;
tag = "DROP USER MAPPING";
break;
+ case T_CreateForeignTableStmt:
+ tag = "CREATE FOREIGN TABLE";
+ break;
+
case T_DropStmt:
switch (((DropStmt *) parsetree)->removeType)
{
case OBJECT_TSCONFIGURATION:
tag = "DROP TEXT SEARCH CONFIGURATION";
break;
+ case OBJECT_FOREIGN_TABLE:
+ tag = "DROP FOREIGN TABLE";
+ break;
default:
tag = "???";
}
case OBJECT_VIEW:
tag = "ALTER VIEW";
break;
+ case OBJECT_FOREIGN_TABLE:
+ tag = "ALTER FOREIGN TABLE";
+ break;
case OBJECT_TSPARSER:
tag = "ALTER TEXT SEARCH PARSER";
break;
case OBJECT_VIEW:
tag = "ALTER VIEW";
break;
+ case OBJECT_FOREIGN_TABLE:
+ tag = "ALTER FOREIGN TABLE";
+ break;
default:
tag = "???";
break;
case OBJECT_FOREIGN_SERVER:
tag = "ALTER SERVER";
break;
+ case OBJECT_FOREIGN_TABLE:
+ tag = "ALTER FOREIGN TABLE";
+ break;
default:
tag = "???";
break;
case OBJECT_VIEW:
tag = "ALTER VIEW";
break;
+ case OBJECT_FOREIGN_TABLE:
+ tag = "ALTER FOREIGN TABLE";
+ break;
default:
tag = "???";
break;
break;
case T_CreateStmt:
+ case T_CreateForeignTableStmt:
lev = LOGSTMT_DDL;
break;
world_default = ACL_NO_RIGHTS;
owner_default = ACL_ALL_RIGHTS_FOREIGN_SERVER;
break;
+ case ACL_OBJECT_FOREIGN_TABLE:
+ world_default = ACL_NO_RIGHTS;
+ owner_default = ACL_ALL_RIGHTS_FOREIGN_TABLE;
+ break;
default:
elog(ERROR, "unrecognized objtype: %d", (int) objtype);
world_default = ACL_NO_RIGHTS; /* keep compiler quiet */
{
return textsend(fcinfo);
}
+
+/*
+ * fdw_handler_in - input routine for pseudo-type FDW_HANDLER.
+ */
+Datum
+fdw_handler_in(PG_FUNCTION_ARGS)
+{
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("cannot accept a value of type fdw_handler")));
+
+ PG_RETURN_VOID(); /* keep compiler quiet */
+}
+
+/*
+ * fdw_handler_out - output routine for pseudo-type FDW_HANDLER.
+ */
+Datum
+fdw_handler_out(PG_FUNCTION_ARGS)
+{
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("cannot display a value of type fdw_handler")));
+
+ PG_RETURN_VOID(); /* keep compiler quiet */
+}
#include "catalog/pg_enum.h"
#include "catalog/pg_foreign_data_wrapper.h"
#include "catalog/pg_foreign_server.h"
+#include "catalog/pg_foreign_table.h"
#include "catalog/pg_language.h"
#include "catalog/pg_namespace.h"
#include "catalog/pg_opclass.h"
},
32
},
+ {ForeignTableRelationId, /* FOREIGNTABLEREL */
+ ForeignTableRelidIndexId,
+ 1,
+ {
+ Anum_pg_foreign_table_ftrelid,
+ 0,
+ 0,
+ 0
+ },
+ 128
+ },
{IndexRelationId, /* INDEXRELID */
IndexRelidIndexId,
1,
#endif
#include "catalog/pg_authid.h"
+#include "foreign/foreign.h"
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "postmaster/autovacuum.h"
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("cannot set parameter \"%s\" within security-restricted operation",
"role")));
+
CurrentUserId = userid;
if (sec_def_context)
SecurityRestrictionContext |= SECURITY_LOCAL_USERID_CHANGE;
for (i = 0; i < numTables; i++)
{
- /* Sequences and views never have parents */
+ /* Sequences and views and foreign tables never have parents */
if (tblinfo[i].relkind == RELKIND_SEQUENCE ||
tblinfo[i].relkind == RELKIND_VIEW)
continue;
CONVERT_PRIV('U', "USAGE");
else if (strcmp(type, "FOREIGN SERVER") == 0)
CONVERT_PRIV('U', "USAGE");
+ else if (strcmp(type, "FOREIGN TABLE") == 0)
+ CONVERT_PRIV('r', "SELECT");
else if (strcmp(type, "LARGE OBJECT") == 0)
{
CONVERT_PRIV('r', "SELECT");
strcmp(type, "DOMAIN") == 0 ||
strcmp(type, "TABLE") == 0 ||
strcmp(type, "TYPE") == 0 ||
+ strcmp(type, "FOREIGN TABLE") == 0 ||
strcmp(type, "TEXT SEARCH DICTIONARY") == 0 ||
strcmp(type, "TEXT SEARCH CONFIGURATION") == 0)
{
strcmp(te->desc, "TYPE") == 0 ||
strcmp(te->desc, "VIEW") == 0 ||
strcmp(te->desc, "SEQUENCE") == 0 ||
+ strcmp(te->desc, "FOREIGN TABLE") == 0 ||
strcmp(te->desc, "TEXT SEARCH DICTIONARY") == 0 ||
strcmp(te->desc, "TEXT SEARCH CONFIGURATION") == 0 ||
strcmp(te->desc, "FOREIGN DATA WRAPPER") == 0 ||
"SELECT c.oid"
"\nFROM pg_catalog.pg_class c"
"\n LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace"
- "\nWHERE c.relkind in ('%c', '%c', '%c')\n",
- RELKIND_RELATION, RELKIND_SEQUENCE, RELKIND_VIEW);
+ "\nWHERE c.relkind in ('%c', '%c', '%c', '%c')\n",
+ RELKIND_RELATION, RELKIND_SEQUENCE, RELKIND_VIEW,
+ RELKIND_FOREIGN_TABLE);
processSQLNamePattern(g_conn, query, cell->val, true, false,
"n.nspname", "c.relname", NULL,
"pg_catalog.pg_table_is_visible(c.oid)");
/* Skip SEQUENCEs (handled elsewhere) */
if (tblinfo[i].relkind == RELKIND_SEQUENCE)
continue;
+ /* Skip FOREIGN TABLEs (no data to dump) */
+ if (tblinfo[i].relkind == RELKIND_FOREIGN_TABLE)
+ continue;
if (tblinfo[i].dobj.dump)
{
* we cannot correctly identify inherited columns, owned sequences, etc.
*/
- if (g_fout->remoteVersion >= 90000)
+ if (g_fout->remoteVersion >= 90100)
+ {
+ /*
+ * Left join to pick up dependency info linking sequences to their
+ * owning column, if any (note this dependency is AUTO as of 8.2)
+ */
+ appendPQExpBuffer(query,
+ "SELECT c.tableoid, c.oid, c.relname, "
+ "c.relacl, c.relkind, c.relnamespace, "
+ "(%s c.relowner) AS rolname, "
+ "c.relchecks, c.relhastriggers, "
+ "c.relhasindex, c.relhasrules, c.relhasoids, "
+ "c.relfrozenxid, "
+ "CASE WHEN c.reloftype <> 0 THEN c.reloftype::pg_catalog.regtype ELSE NULL END AS reloftype, "
+ "d.refobjid AS owning_tab, "
+ "d.refobjsubid AS owning_col, "
+ "(SELECT spcname FROM pg_tablespace t WHERE t.oid = c.reltablespace) AS reltablespace, "
+ "array_to_string(c.reloptions, ', ') AS reloptions, "
+ "array_to_string(array(SELECT 'toast.' || x FROM unnest(tc.reloptions) x), ', ') AS toast_reloptions "
+ "FROM pg_class c "
+ "LEFT JOIN pg_depend d ON "
+ "(c.relkind = '%c' AND "
+ "d.classid = c.tableoid AND d.objid = c.oid AND "
+ "d.objsubid = 0 AND "
+ "d.refclassid = c.tableoid AND d.deptype = 'a') "
+ "LEFT JOIN pg_class tc ON (c.reltoastrelid = tc.oid) "
+ "WHERE c.relkind in ('%c', '%c', '%c', '%c', '%c') "
+ "ORDER BY c.oid",
+ username_subquery,
+ RELKIND_SEQUENCE,
+ RELKIND_RELATION, RELKIND_SEQUENCE,
+ RELKIND_VIEW, RELKIND_COMPOSITE_TYPE,
+ RELKIND_FOREIGN_TABLE);
+ }
+ else if (g_fout->remoteVersion >= 90000)
{
/*
* Left join to pick up dependency info linking sequences to their
* NOTE: it'd be kinda nice to lock views and sequences too, not only
* plain tables, but the backend doesn't presently allow that.
*/
- if (tblinfo[i].dobj.dump && tblinfo[i].relkind == RELKIND_RELATION)
+ if (tblinfo[i].dobj.dump && (tblinfo[i].relkind == RELKIND_RELATION ||
+ tblinfo[i].relkind == RELKIND_FOREIGN_TABLE))
{
resetPQExpBuffer(query);
appendPQExpBuffer(query,
int i_fdwname;
int i_rolname;
int i_fdwvalidator;
+ int i_fdwhandler;
int i_fdwacl;
int i_fdwoptions;
selectSourceSchema("pg_catalog");
appendPQExpBuffer(query, "SELECT tableoid, oid, fdwname, "
- "(%s fdwowner) AS rolname, fdwvalidator::pg_catalog.regproc, fdwacl,"
+ "(%s fdwowner) AS rolname, fdwvalidator::pg_catalog.regproc, "
+ "fdwhandler::pg_catalog.regproc, fdwacl,"
"array_to_string(ARRAY("
" SELECT option_name || ' ' || quote_literal(option_value) "
" FROM pg_options_to_table(fdwoptions)), ', ') AS fdwoptions "
i_fdwname = PQfnumber(res, "fdwname");
i_rolname = PQfnumber(res, "rolname");
i_fdwvalidator = PQfnumber(res, "fdwvalidator");
+ i_fdwhandler = PQfnumber(res, "fdwhandler");
i_fdwacl = PQfnumber(res, "fdwacl");
i_fdwoptions = PQfnumber(res, "fdwoptions");
fdwinfo[i].dobj.namespace = NULL;
fdwinfo[i].rolname = strdup(PQgetvalue(res, i, i_rolname));
fdwinfo[i].fdwvalidator = strdup(PQgetvalue(res, i, i_fdwvalidator));
+ fdwinfo[i].fdwhandler = strdup(PQgetvalue(res, i, i_fdwhandler));
fdwinfo[i].fdwoptions = strdup(PQgetvalue(res, i, i_fdwoptions));
fdwinfo[i].fdwacl = strdup(PQgetvalue(res, i, i_fdwacl));
appendPQExpBuffer(q, " VALIDATOR %s",
fdwinfo->fdwvalidator);
+ if (fdwinfo->fdwhandler && strcmp(fdwinfo->fdwhandler, "-") != 0)
+ appendPQExpBuffer(q, " HANDLER %s",
+ fdwinfo->fdwhandler);
+
if (fdwinfo->fdwoptions && strlen(fdwinfo->fdwoptions) > 0)
appendPQExpBuffer(q, " OPTIONS (%s)", fdwinfo->fdwoptions);
/* Handle the ACL here */
namecopy = strdup(fmtId(tbinfo->dobj.name));
dumpACL(fout, tbinfo->dobj.catId, tbinfo->dobj.dumpId,
- (tbinfo->relkind == RELKIND_SEQUENCE) ? "SEQUENCE" : "TABLE",
+ (tbinfo->relkind == RELKIND_SEQUENCE) ? "SEQUENCE" :
+ (tbinfo->relkind == RELKIND_FOREIGN_TABLE) ? "FOREIGN TABLE" :
+ "TABLE",
namecopy, NULL, tbinfo->dobj.name,
tbinfo->dobj.namespace->dobj.name, tbinfo->rolname,
tbinfo->relacl);
int j,
k;
bool toast_set = false;
+ char *srvname;
+ char *ftoptions = NULL;
/* Make sure we are in proper schema */
selectSourceSchema(tbinfo->dobj.namespace->dobj.name);
}
else
{
- reltypename = "TABLE";
+ if (tbinfo->relkind == RELKIND_FOREIGN_TABLE)
+ {
+ int i_srvname;
+ int i_ftoptions;
+
+ reltypename = "FOREIGN TABLE";
+
+ /* retrieve name of foreign server and generic options */
+ appendPQExpBuffer(query,
+ "SELECT fs.srvname, array_to_string(ARRAY("
+ " SELECT option_name || ' ' || quote_literal(option_value)"
+ " FROM pg_options_to_table(ftoptions)), ', ') AS ftoptions "
+ "FROM pg_foreign_table ft JOIN pg_foreign_server fs "
+ " ON (fs.oid = ft.ftserver) "
+ "WHERE ft.ftrelid = %u", tbinfo->dobj.catId.oid);
+ res = PQexec(g_conn, query->data);
+ check_sql_result(res, g_conn, query->data, PGRES_TUPLES_OK);
+ i_srvname = PQfnumber(res, "srvname");
+ i_ftoptions = PQfnumber(res, "ftoptions");
+ srvname = strdup(PQgetvalue(res, 0, i_srvname));
+ ftoptions = strdup(PQgetvalue(res, 0, i_ftoptions));
+ PQclear(res);
+ }
+ else
+ {
+ reltypename = "TABLE";
+ srvname = NULL;
+ ftoptions = NULL;
+ }
numParents = tbinfo->numParents;
parents = tbinfo->parents;
* DROP must be fully qualified in case same name appears in
* pg_catalog
*/
- appendPQExpBuffer(delq, "DROP TABLE %s.",
+ appendPQExpBuffer(delq, "DROP %s %s.", reltypename,
fmtId(tbinfo->dobj.namespace->dobj.name));
appendPQExpBuffer(delq, "%s;\n",
fmtId(tbinfo->dobj.name));
if (binary_upgrade)
binary_upgrade_set_relfilenodes(q, tbinfo->dobj.catId.oid, false);
- appendPQExpBuffer(q, "CREATE TABLE %s",
+ appendPQExpBuffer(q, "CREATE %s %s", reltypename,
fmtId(tbinfo->dobj.name));
if (tbinfo->reloftype)
appendPQExpBuffer(q, " OF %s", tbinfo->reloftype);
appendPQExpBuffer(q, ")");
}
+ if (tbinfo->relkind == RELKIND_FOREIGN_TABLE)
+ appendPQExpBuffer(q, "\nSERVER %s", srvname);
+
if ((tbinfo->reloptions && strlen(tbinfo->reloptions) > 0) ||
(tbinfo->toast_reloptions && strlen(tbinfo->toast_reloptions) > 0))
{
appendPQExpBuffer(q, ")");
}
+ /* Dump generic options if any */
+ if (ftoptions && ftoptions[0])
+ appendPQExpBuffer(q, "\nOPTIONS (%s)", ftoptions);
+
appendPQExpBuffer(q, ";\n");
/*
* order. That also means we have to take care about setting
* attislocal correctly, plus fix up any inherited CHECK constraints.
*/
- if (binary_upgrade)
+ if (binary_upgrade && tbinfo->relkind == RELKIND_RELATION)
{
for (j = 0; j < tbinfo->numatts; j++)
{
DumpableObject dobj;
char *rolname;
char *fdwvalidator;
+ char *fdwhandler;
char *fdwoptions;
char *fdwacl;
} FdwInfo;
success = describeTableDetails(pattern, show_verbose, show_system);
else
/* standard listing of interesting things */
- success = listTables("tvs", NULL, show_verbose, show_system);
+ success = listTables("tvsE", NULL, show_verbose, show_system);
break;
case 'a':
success = describeAggregates(pattern, show_verbose, show_system);
case 'v':
case 'i':
case 's':
+ case 'E':
success = listTables(&cmd[1], pattern, show_verbose, show_system);
break;
case 'r':
case 'w':
success = listForeignDataWrappers(pattern, show_verbose);
break;
+ case 't':
+ success = listForeignTables(pattern, show_verbose);
+ break;
default:
status = PSQL_CMD_UNKNOWN;
break;
printfPQExpBuffer(&buf,
"SELECT n.nspname as \"%s\",\n"
" c.relname as \"%s\",\n"
- " CASE c.relkind WHEN 'r' THEN '%s' WHEN 'v' THEN '%s' WHEN 'S' THEN '%s' END as \"%s\",\n"
+ " CASE c.relkind WHEN 'r' THEN '%s' WHEN 'v' THEN '%s' WHEN 'S' THEN '%s' WHEN 'f' THEN '%s' END as \"%s\",\n"
" ",
gettext_noop("Schema"),
gettext_noop("Name"),
gettext_noop("table"), gettext_noop("view"), gettext_noop("sequence"),
+ gettext_noop("foreign table"),
gettext_noop("Type"));
printACLColumn(&buf, "c.relacl");
appendPQExpBuffer(&buf, "\nFROM pg_catalog.pg_class c\n"
" LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace\n"
- "WHERE c.relkind IN ('r', 'v', 'S')\n");
+ "WHERE c.relkind IN ('r', 'v', 'S', 'f')\n");
/*
* Unless a schema pattern is specified, we suppress system and temp
" n.nspname as nspname,\n"
" CAST(c.relname AS pg_catalog.text) as name,\n"
" CAST(\n"
- " CASE c.relkind WHEN 'r' THEN '%s' WHEN 'v' THEN '%s' WHEN 'i' THEN '%s' WHEN 'S' THEN '%s' END"
+ " CASE c.relkind WHEN 'r' THEN '%s' WHEN 'v' THEN '%s' WHEN 'i' THEN '%s' WHEN 'S' THEN '%s' WHEN 'f' THEN '%s' END"
" AS pg_catalog.text) as object\n"
" FROM pg_catalog.pg_class c\n"
" LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace\n"
- " WHERE c.relkind IN ('r', 'v', 'i', 'S')\n",
+ " WHERE c.relkind IN ('r', 'v', 'i', 'S', 'f')\n",
gettext_noop("table"),
gettext_noop("view"),
gettext_noop("index"),
- gettext_noop("sequence"));
+ gettext_noop("sequence"),
+ gettext_noop("foreign table"));
if (!showSystem && !pattern)
appendPQExpBuffer(&buf, " AND n.nspname <> 'pg_catalog'\n"
printfPQExpBuffer(&title, _("Composite type \"%s.%s\""),
schemaname, relationname);
break;
+ case 'f':
+ printfPQExpBuffer(&title, _("Foreign table \"%s.%s\""),
+ schemaname, relationname);
+ break;
default:
/* untranslated unknown relkind */
printfPQExpBuffer(&title, "?%c? \"%s.%s\"",
headers[1] = gettext_noop("Type");
cols = 2;
- if (tableinfo.relkind == 'r' || tableinfo.relkind == 'v')
+ if (tableinfo.relkind == 'r' || tableinfo.relkind == 'v' ||
+ tableinfo.relkind == 'f')
{
show_modifiers = true;
headers[cols++] = gettext_noop("Modifiers");
PQclear(result);
}
}
- else if (tableinfo.relkind == 'r')
+ else if (tableinfo.relkind == 'r' || tableinfo.relkind == 'f')
{
/* Footer information about a table */
PGresult *result = NULL;
/*
* Finish printing the footer information about a table.
*/
- if (tableinfo.relkind == 'r')
+ if (tableinfo.relkind == 'r' || tableinfo.relkind == 'f')
{
PGresult *result;
int tuples;
+ /* print foreign server name */
+ if (tableinfo.relkind == 'f')
+ {
+ /* Footer information about foreign table */
+ printfPQExpBuffer(&buf,
+ "SELECT s.srvname\n"
+ "FROM pg_catalog.pg_foreign_table f,\n"
+ " pg_catalog.pg_foreign_server s\n"
+ "WHERE f.ftrelid = %s AND s.oid = f.ftserver",
+ oid);
+ result = PSQLexec(buf.data, false);
+ if (!result)
+ goto error_return;
+ else if (PQntuples(result) != 1)
+ {
+ PQclear(result);
+ goto error_return;
+ }
+
+ printfPQExpBuffer(&buf, "Server: %s",
+ PQgetvalue(result, 0, 0));
+ printTableAddFooter(&cont, buf.data);
+ PQclear(result);
+ }
+
/* print inherited tables */
printfPQExpBuffer(&buf, "SELECT c.oid::pg_catalog.regclass FROM pg_catalog.pg_class c, pg_catalog.pg_inherits i WHERE c.oid=i.inhparent AND i.inhrelid = '%s' ORDER BY inhseqno", oid);
* i - indexes
* v - views
* s - sequences
+ * E - foreign table (Note: different from 'f', the relkind value)
* (any order of the above is fine)
- * If tabtypes is empty, we default to \dtvs.
+ * If tabtypes is empty, we default to \dtvsE.
*/
bool
listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSystem)
bool showIndexes = strchr(tabtypes, 'i') != NULL;
bool showViews = strchr(tabtypes, 'v') != NULL;
bool showSeq = strchr(tabtypes, 's') != NULL;
+ bool showForeign = strchr(tabtypes, 'E') != NULL;
PQExpBufferData buf;
PGresult *res;
printQueryOpt myopt = pset.popt;
static const bool translate_columns[] = {false, false, true, false, false, false, false};
- if (!(showTables || showIndexes || showViews || showSeq))
- showTables = showViews = showSeq = true;
+ if (!(showTables || showIndexes || showViews || showSeq || showForeign))
+ showTables = showViews = showSeq = showForeign = true;
initPQExpBuffer(&buf);
printfPQExpBuffer(&buf,
"SELECT n.nspname as \"%s\",\n"
" c.relname as \"%s\",\n"
- " CASE c.relkind WHEN 'r' THEN '%s' WHEN 'v' THEN '%s' WHEN 'i' THEN '%s' WHEN 'S' THEN '%s' WHEN 's' THEN '%s' END as \"%s\",\n"
+ " CASE c.relkind WHEN 'r' THEN '%s' WHEN 'v' THEN '%s' WHEN 'i' THEN '%s' WHEN 'S' THEN '%s' WHEN 's' THEN '%s' WHEN 'f' THEN '%s' END as \"%s\",\n"
" pg_catalog.pg_get_userbyid(c.relowner) as \"%s\"",
gettext_noop("Schema"),
gettext_noop("Name"),
gettext_noop("index"),
gettext_noop("sequence"),
gettext_noop("special"),
+ gettext_noop("foreign table"),
gettext_noop("Type"),
gettext_noop("Owner"));
if (showSystem || pattern)
appendPQExpBuffer(&buf, "'s',"); /* was RELKIND_SPECIAL in <=
* 8.1 */
+ if (showForeign)
+ appendPQExpBuffer(&buf, "'f',");
+
appendPQExpBuffer(&buf, "''"); /* dummy */
appendPQExpBuffer(&buf, ")\n");
printfPQExpBuffer(&buf,
"SELECT fdwname AS \"%s\",\n"
" pg_catalog.pg_get_userbyid(fdwowner) AS \"%s\",\n"
+ " fdwhandler::pg_catalog.regproc AS \"%s\",\n"
" fdwvalidator::pg_catalog.regproc AS \"%s\"",
gettext_noop("Name"),
gettext_noop("Owner"),
+ gettext_noop("Handler"),
gettext_noop("Validator"));
if (verbose)
return true;
}
+/*
+ * \det
+ *
+ * Describes foreign tables.
+ */
+bool
+listForeignTables(const char *pattern, bool verbose)
+{
+ PQExpBufferData buf;
+ PGresult *res;
+ printQueryOpt myopt = pset.popt;
+
+ if (pset.sversion < 90100)
+ {
+ fprintf(stderr, _("The server (version %d.%d) does not support foreign table.\n"),
+ pset.sversion / 10000, (pset.sversion / 100) % 100);
+ return true;
+ }
+
+ initPQExpBuffer(&buf);
+ printfPQExpBuffer(&buf,
+ "SELECT n.nspname AS \"%s\",\n"
+ " c.relname AS \"%s\",\n"
+ " s.srvname AS \"%s\"",
+ gettext_noop("Schema"),
+ gettext_noop("Table"),
+ gettext_noop("Server"));
+
+ if (verbose)
+ appendPQExpBuffer(&buf,
+ ",\n ft.ftoptions AS \"%s\"",
+ gettext_noop("Options"));
+
+ appendPQExpBuffer(&buf, "\nFROM pg_catalog.pg_foreign_table ft,");
+ appendPQExpBuffer(&buf, "\n pg_catalog.pg_class c,");
+ appendPQExpBuffer(&buf, "\n pg_catalog.pg_namespace n,");
+ appendPQExpBuffer(&buf, "\n pg_catalog.pg_foreign_server s\n");
+ appendPQExpBuffer(&buf, "\nWHERE c.oid = ft.ftrelid");
+ appendPQExpBuffer(&buf, "\nAND s.oid = ft.ftserver\n");
+ appendPQExpBuffer(&buf, "\nAND n.oid = c.relnamespace\n");
+
+ processSQLNamePattern(pset.db, &buf, pattern, true, false,
+ NULL, "n.nspname", "c.relname", NULL);
+
+ appendPQExpBuffer(&buf, "ORDER BY 1, 2;");
+
+ res = PSQLexec(buf.data, false);
+ termPQExpBuffer(&buf);
+ if (!res)
+ return false;
+
+ myopt.nullPrint = NULL;
+ myopt.title = _("List of foreign tables");
+ myopt.translate_header = true;
+
+ printQuery(res, &myopt, pset.queryFout, pset.logfile);
+
+ PQclear(res);
+ return true;
+}
+
/*
* printACLColumn
*
/* \deu */
extern bool listUserMappings(const char *pattern, bool verbose);
+/* \det */
+extern bool listForeignTables(const char *pattern, bool verbose);
+
#endif /* DESCRIBE_H */
{
FILE *output;
- output = PageOutput(90, pager);
+ output = PageOutput(92, pager);
/* if you add/remove a line here, change the row count above */
fprintf(output, _(" \\dd[S] [PATTERN] show comments on objects\n"));
fprintf(output, _(" \\ddp [PATTERN] list default privileges\n"));
fprintf(output, _(" \\dD[S] [PATTERN] list domains\n"));
+ fprintf(output, _(" \\det[+] [PATTERN] list foreign tables\n"));
fprintf(output, _(" \\des[+] [PATTERN] list foreign servers\n"));
fprintf(output, _(" \\deu[+] [PATTERN] list user mappings\n"));
fprintf(output, _(" \\dew[+] [PATTERN] list foreign-data wrappers\n"));
fprintf(output, _(" \\dT[S+] [PATTERN] list data types\n"));
fprintf(output, _(" \\du[+] [PATTERN] list roles\n"));
fprintf(output, _(" \\dv[S+] [PATTERN] list views\n"));
+ fprintf(output, _(" \\dE[S+] [PATTERN] list foreign tables\n"));
fprintf(output, _(" \\l[+] list all databases\n"));
fprintf(output, _(" \\sf[+] FUNCNAME show a function's definition\n"));
fprintf(output, _(" \\z [PATTERN] same as \\dp\n"));
NULL
};
+static const SchemaQuery Query_for_list_of_foreign_tables = {
+ /* catname */
+ "pg_catalog.pg_class c",
+ /* selcondition */
+ "c.relkind IN ('f')",
+ /* viscondition */
+ "pg_catalog.pg_table_is_visible(c.oid)",
+ /* namespace */
+ "c.relnamespace",
+ /* result */
+ "pg_catalog.quote_ident(c.relname)",
+ /* qualresult */
+ NULL
+};
+
static const SchemaQuery Query_for_list_of_tables = {
/* catname */
"pg_catalog.pg_class c",
NULL
};
-static const SchemaQuery Query_for_list_of_tisv = {
+static const SchemaQuery Query_for_list_of_tisvf = {
/* catname */
"pg_catalog.pg_class c",
/* selcondition */
- "c.relkind IN ('r', 'i', 'S', 'v')",
+ "c.relkind IN ('r', 'i', 'S', 'v', 'f')",
/* viscondition */
"pg_catalog.pg_table_is_visible(c.oid)",
/* namespace */
NULL
};
-static const SchemaQuery Query_for_list_of_tsv = {
+static const SchemaQuery Query_for_list_of_tsvf = {
/* catname */
"pg_catalog.pg_class c",
/* selcondition */
- "c.relkind IN ('r', 'S', 'v')",
+ "c.relkind IN ('r', 'S', 'v', 'f')",
/* viscondition */
"pg_catalog.pg_table_is_visible(c.oid)",
/* namespace */
{"DICTIONARY", Query_for_list_of_ts_dictionaries, NULL, true},
{"DOMAIN", NULL, &Query_for_list_of_domains},
{"FOREIGN DATA WRAPPER", NULL, NULL},
+ {"FOREIGN TABLE", NULL, NULL},
{"FUNCTION", NULL, &Query_for_list_of_functions},
{"GROUP", Query_for_list_of_roles},
{"LANGUAGE", Query_for_list_of_languages},
static const char *const backslash_commands[] = {
"\\a", "\\connect", "\\conninfo", "\\C", "\\cd", "\\copy", "\\copyright",
- "\\d", "\\da", "\\db", "\\dc", "\\dC", "\\dd", "\\dD", "\\des", "\\deu", "\\dew", "\\df",
+ "\\d", "\\da", "\\db", "\\dc", "\\dC", "\\dd", "\\dD", "\\des", "\\det", "\\deu", "\\dew", "\\df",
"\\dF", "\\dFd", "\\dFp", "\\dFt", "\\dg", "\\di", "\\dl",
"\\dn", "\\do", "\\dp", "\\drds", "\\ds", "\\dS", "\\dt", "\\dT", "\\dv", "\\du",
"\\e", "\\echo", "\\ef", "\\encoding",
pg_strcasecmp(prev3_wd, "TABLE") != 0)
{
static const char *const list_ALTER[] =
- {"AGGREGATE", "CONVERSION", "DATABASE", "DEFAULT PRIVILEGES", "DOMAIN", "FOREIGN DATA WRAPPER", "FUNCTION",
+ {"AGGREGATE", "CONVERSION", "DATABASE", "DEFAULT PRIVILEGES", "DOMAIN", "FOREIGN DATA WRAPPER", "FOREIGN TABLE", "FUNCTION",
"GROUP", "INDEX", "LANGUAGE", "LARGE OBJECT", "OPERATOR", "ROLE", "SCHEMA", "SERVER", "SEQUENCE", "TABLE",
"TABLESPACE", "TEXT SEARCH", "TRIGGER", "TYPE", "USER", "USER MAPPING FOR", "VIEW", NULL};
COMPLETE_WITH_LIST(list_ALTERDATABASE);
}
+ /* ALTER FOREIGN */
+ else if (pg_strcasecmp(prev2_wd, "ALTER") == 0 &&
+ pg_strcasecmp(prev_wd, "FOREIGN") == 0)
+ {
+ static const char *const list_ALTER_FOREIGN[] =
+ {"DATA WRAPPER", "TABLE", NULL};
+
+ COMPLETE_WITH_LIST(list_ALTER_FOREIGN);
+ }
+
/* ALTER FOREIGN DATA WRAPPER <name> */
else if (pg_strcasecmp(prev5_wd, "ALTER") == 0 &&
pg_strcasecmp(prev4_wd, "FOREIGN") == 0 &&
COMPLETE_WITH_LIST(list_ALTER_FDW);
}
+ /* ALTER FOREIGN TABLE <name> */
+ else if (pg_strcasecmp(prev4_wd, "ALTER") == 0 &&
+ pg_strcasecmp(prev3_wd, "FOREIGN") == 0 &&
+ pg_strcasecmp(prev2_wd, "TABLE") == 0)
+ {
+ static const char *const list_ALTER_FOREIGN_TABLE[] =
+ {"ADD", "ALTER", "DISABLE", "DROP", "ENABLE", "INHERIT",
+ "NO INHERIT", "RENAME", "RESET", "OWNER TO", NULL};
+
+ COMPLETE_WITH_LIST(list_ALTER_FOREIGN_TABLE);
+ }
+
/* ALTER INDEX <name> */
else if (pg_strcasecmp(prev3_wd, "ALTER") == 0 &&
pg_strcasecmp(prev2_wd, "INDEX") == 0)
pg_strcasecmp(prev_wd, "ON") == 0)
{
static const char *const list_COMMENT[] =
- {"CAST", "CONVERSION", "DATABASE", "INDEX", "LANGUAGE", "RULE", "SCHEMA",
+ {"CAST", "CONVERSION", "DATABASE", "FOREIGN TABLE", "INDEX", "LANGUAGE", "RULE", "SCHEMA",
"SEQUENCE", "TABLE", "TYPE", "VIEW", "COLUMN", "AGGREGATE", "FUNCTION",
"OPERATOR", "TRIGGER", "CONSTRAINT", "DOMAIN", "LARGE OBJECT",
"TABLESPACE", "TEXT SEARCH", "ROLE", NULL};
pg_strcasecmp(prev_wd, "TEMPLATE") == 0)
COMPLETE_WITH_QUERY(Query_for_list_of_template_databases);
+ /* CREATE FOREIGN */
+ else if (pg_strcasecmp(prev2_wd, "CREATE") == 0 &&
+ pg_strcasecmp(prev_wd, "FOREIGN") == 0)
+ {
+ static const char *const list_CREATE_FOREIGN[] =
+ {"DATA WRAPPER", "TABLE", NULL};
+
+ COMPLETE_WITH_LIST(list_CREATE_FOREIGN);
+ }
+
/* CREATE FOREIGN DATA WRAPPER */
else if (pg_strcasecmp(prev5_wd, "CREATE") == 0 &&
pg_strcasecmp(prev4_wd, "FOREIGN") == 0 &&
pg_strcasecmp(prev2_wd, "WRAPPER") == 0)
COMPLETE_WITH_CONST("VALIDATOR");
+ /* CREATE FOREIGN TABLE name (...) */
+ else if (pg_strcasecmp(prev5_wd, "CREATE") == 0 &&
+ pg_strcasecmp(prev4_wd, "FOREIGN") == 0 &&
+ pg_strcasecmp(prev3_wd, "TABLE") == 0 &&
+ prev_wd[strlen(prev_wd) - 1] == ')')
+ {
+ static const char *const list_CREATE_FOREIGN_TABLE[] =
+ {"INHERTIS", "SERVER", NULL};
+
+ COMPLETE_WITH_LIST(list_CREATE_FOREIGN_TABLE);
+ }
+
/* CREATE INDEX */
/* First off we complete CREATE UNIQUE with "INDEX" */
else if (pg_strcasecmp(prev2_wd, "CREATE") == 0 &&
COMPLETE_WITH_LIST(list_DROPCR);
}
}
+ else if (pg_strcasecmp(prev2_wd, "DROP") == 0 &&
+ pg_strcasecmp(prev_wd, "FOREIGN") == 0)
+ {
+ static const char *const drop_CREATE_FOREIGN[] =
+ {"DATA WRAPPER", "TABLE", NULL};
+
+ COMPLETE_WITH_LIST(drop_CREATE_FOREIGN);
+ }
else if (pg_strcasecmp(prev4_wd, "DROP") == 0 &&
(pg_strcasecmp(prev3_wd, "AGGREGATE") == 0 ||
pg_strcasecmp(prev3_wd, "FUNCTION") == 0) &&
pg_strcasecmp(prev_wd, "WRAPPER") == 0)
COMPLETE_WITH_QUERY(Query_for_list_of_fdws);
+/* FOREIGN TABLE */
+ else if (pg_strcasecmp(prev3_wd, "CREATE") != 0 &&
+ pg_strcasecmp(prev2_wd, "FOREIGN") == 0 &&
+ pg_strcasecmp(prev_wd, "TABLE") == 0)
+ COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_foreign_tables, NULL);
+
/* GRANT && REVOKE */
/* Complete GRANT/REVOKE with a list of privileges */
else if (pg_strcasecmp(prev_wd, "GRANT") == 0 ||
else if ((pg_strcasecmp(prev3_wd, "GRANT") == 0 ||
pg_strcasecmp(prev3_wd, "REVOKE") == 0) &&
pg_strcasecmp(prev_wd, "ON") == 0)
- COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tsv,
+ COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tsvf,
" UNION SELECT 'DATABASE'"
" UNION SELECT 'FOREIGN DATA WRAPPER'"
" UNION SELECT 'FOREIGN SERVER'"
+ " UNION SELECT 'FOREIGN TABLE'"
" UNION SELECT 'FUNCTION'"
" UNION SELECT 'LANGUAGE'"
" UNION SELECT 'LARGE OBJECT'"
pg_strcasecmp(prev_wd, "FOREIGN") == 0)
{
static const char *const list_privilege_foreign[] =
- {"DATA WRAPPER", "SERVER", NULL};
+ {"DATA WRAPPER", "SERVER", "TABLE", NULL};
COMPLETE_WITH_LIST(list_privilege_foreign);
}
else if (pg_strcasecmp(prev_wd, "FROM") == 0 &&
pg_strcasecmp(prev3_wd, "COPY") != 0 &&
pg_strcasecmp(prev3_wd, "\\copy") != 0)
- COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tsv, NULL);
+ COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tsvf, NULL);
/* Backslash commands */
/* TODO: \dc \dd \dl */
COMPLETE_WITH_QUERY(Query_for_list_of_schemas);
else if (strncmp(prev_wd, "\\dp", strlen("\\dp")) == 0
|| strncmp(prev_wd, "\\z", strlen("\\z")) == 0)
- COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tsv, NULL);
+ COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tsvf, NULL);
else if (strncmp(prev_wd, "\\ds", strlen("\\ds")) == 0)
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_sequences, NULL);
else if (strncmp(prev_wd, "\\dt", strlen("\\dt")) == 0)
/* must be at end of \d list */
else if (strncmp(prev_wd, "\\d", strlen("\\d")) == 0)
- COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tisv, NULL);
+ COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tisvf, NULL);
else if (strcmp(prev_wd, "\\ef") == 0)
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_functions, NULL);
*/
/* yyyymmddN */
-#define CATALOG_VERSION_NO 201012131
+#define CATALOG_VERSION_NO 201012151
#endif
OCLASS_FDW, /* pg_foreign_data_wrapper */
OCLASS_FOREIGN_SERVER, /* pg_foreign_server */
OCLASS_USER_MAPPING, /* pg_user_mapping */
+ OCLASS_FOREIGN_TABLE, /* pg_foreign_table */
OCLASS_DEFACL, /* pg_default_acl */
MAX_OCLASS /* MUST BE LAST */
} ObjectClass;
DECLARE_UNIQUE_INDEX(pg_user_mapping_user_server_index, 175, on pg_user_mapping using btree(umuser oid_ops, umserver oid_ops));
#define UserMappingUserServerIndexId 175
+DECLARE_UNIQUE_INDEX(pg_foreign_table_relid_index, 3119, on pg_foreign_table using btree(ftrelid oid_ops));
+#define ForeignTableRelidIndexId 3119
+
DECLARE_UNIQUE_INDEX(pg_default_acl_role_nsp_obj_index, 827, on pg_default_acl using btree(defaclrole oid_ops, defaclnamespace oid_ops, defaclobjtype char_ops));
#define DefaultAclRoleNspObjIndexId 827
DECLARE_UNIQUE_INDEX(pg_default_acl_oid_index, 828, on pg_default_acl using btree(oid oid_ops));
#define RELKIND_TOASTVALUE 't' /* moved off huge values */
#define RELKIND_VIEW 'v' /* view */
#define RELKIND_COMPOSITE_TYPE 'c' /* composite type */
+#define RELKIND_FOREIGN_TABLE 'f' /* foreign table */
#define RELPERSISTENCE_PERMANENT 'p'
#define RELPERSISTENCE_TEMP 't'
NameData fdwname; /* foreign-data wrapper name */
Oid fdwowner; /* FDW owner */
Oid fdwvalidator; /* optional validation function */
+ Oid fdwhandler; /* foreign-data routines function */
/* VARIABLE LENGTH FIELDS start here. */
* ----------------
*/
-#define Natts_pg_foreign_data_wrapper 5
+#define Natts_pg_foreign_data_wrapper 6
#define Anum_pg_foreign_data_wrapper_fdwname 1
#define Anum_pg_foreign_data_wrapper_fdwowner 2
#define Anum_pg_foreign_data_wrapper_fdwvalidator 3
-#define Anum_pg_foreign_data_wrapper_fdwacl 4
-#define Anum_pg_foreign_data_wrapper_fdwoptions 5
+#define Anum_pg_foreign_data_wrapper_fdwhandler 4
+#define Anum_pg_foreign_data_wrapper_fdwacl 5
+#define Anum_pg_foreign_data_wrapper_fdwoptions 6
#endif /* PG_FOREIGN_DATA_WRAPPER_H */
--- /dev/null
+/*-------------------------------------------------------------------------
+ *
+ * pg_foreign_table.h
+ * definition of the system "foreign table" relation (pg_foreign_table)
+ *
+ * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/catalog/pg_foreign_table.h
+ *
+ * NOTES
+ * the genbki.sh script reads this file and generates .bki
+ * information from the DATA() statements.
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PG_FOREIGN_TABLE_H
+#define PG_FOREIGN_TABLE_H
+
+#include "catalog/genbki.h"
+
+/* ----------------
+ * pg_foreign_table definition. cpp turns this into
+ * typedef struct FormData_pg_foreign_table
+ * ----------------
+ */
+#define ForeignTableRelationId 3118
+
+CATALOG(pg_foreign_table,3118) BKI_WITHOUT_OIDS
+{
+ Oid ftrelid; /* OID of foreign table */
+ Oid ftserver; /* OID of foreign server */
+ text ftoptions[1]; /* FDW-specific options */
+} FormData_pg_foreign_table;
+
+/* ----------------
+ * Form_pg_foreign_table corresponds to a pointer to a tuple with
+ * the format of pg_foreign_table relation.
+ * ----------------
+ */
+typedef FormData_pg_foreign_table *Form_pg_foreign_table;
+
+/* ----------------
+ * compiler constants for pg_foreign_table
+ * ----------------
+ */
+
+#define Natts_pg_foreign_table 3
+#define Anum_pg_foreign_table_ftrelid 1
+#define Anum_pg_foreign_table_ftserver 2
+#define Anum_pg_foreign_table_ftoptions 3
+
+#endif /* PG_FOREIGN_TABLE_H */
DESCR("I/O");
DATA(insert OID = 2778 ( anynonarray_out PGNSP PGUID 12 1 0 0 f f f t f i 1 0 2275 "2776" _null_ _null_ _null_ _null_ anynonarray_out _null_ _null_ _null_ ));
DESCR("I/O");
+DATA(insert OID = 3116 ( fdw_handler_in PGNSP PGUID 12 1 0 0 f f f f f i 1 0 3115 "2275" _null_ _null_ _null_ _null_ fdw_handler_in _null_ _null_ _null_ ));
+DESCR("I/O");
+DATA(insert OID = 3117 ( fdw_handler_out PGNSP PGUID 12 1 0 0 f f f t f i 1 0 2275 "3115" _null_ _null_ _null_ _null_ fdw_handler_out _null_ _null_ _null_ ));
+DESCR("I/O");
/* cryptographic */
DATA(insert OID = 2311 ( md5 PGNSP PGUID 12 1 0 0 f f f t f i 1 0 25 "25" _null_ _null_ _null_ _null_ md5_text _null_ _null_ _null_ ));
#define ANYNONARRAYOID 2776
DATA(insert OID = 3500 ( anyenum PGNSP PGUID 4 t p P f t \054 0 0 0 anyenum_in anyenum_out - - - - - i p f 0 -1 0 _null_ _null_ ));
#define ANYENUMOID 3500
+DATA(insert OID = 3115 ( fdw_handler PGNSP PGUID 4 t p P f t \054 0 0 0 fdw_handler_in fdw_handler_out - - - - - i p f 0 -1 0 _null_ _null_ ));
+#define FDW_HANDLEROID 3115
/*
extern void AlterUserMapping(AlterUserMappingStmt *stmt);
extern void RemoveUserMapping(DropUserMappingStmt *stmt);
extern void RemoveUserMappingById(Oid umId);
+extern void CreateForeignTable(CreateForeignTableStmt *stmt, Oid relid);
/* support routines in commands/define.c */
#ifndef FOREIGN_H
#define FOREIGN_H
-#include "nodes/parsenodes.h"
+#include "executor/tuptable.h"
+#include "utils/relcache.h"
/* Helper for obtaining username for user mapping */
{
ServerOpt = 1, /* options applicable to SERVER */
UserMappingOpt = 2, /* options for USER MAPPING */
- FdwOpt = 4 /* options for FOREIGN DATA WRAPPER */
+ FdwOpt = 4, /* options for FOREIGN DATA WRAPPER */
+ ForeignTableOpt = 8, /* options for FOREIGN TABLE */
} GenericOptionFlags;
typedef struct ForeignDataWrapper
Oid owner; /* FDW owner user Oid */
char *fdwname; /* Name of the FDW */
Oid fdwvalidator;
+ Oid fdwhandler;
List *options; /* fdwoptions as DefElem list */
} ForeignDataWrapper;
List *options; /* useoptions as DefElem list */
} UserMapping;
+typedef struct ForeignTable
+{
+ Oid relid; /* relation Oid */
+ Oid serverid; /* server Oid */
+ List *options; /* ftoptions as DefElem list */
+} ForeignTable;
+/* catalog manipulation */
extern ForeignServer *GetForeignServer(Oid serverid);
extern ForeignServer *GetForeignServerByName(const char *name, bool missing_ok);
extern Oid GetForeignServerOidByName(const char *name, bool missing_ok);
extern ForeignDataWrapper *GetForeignDataWrapperByName(const char *name,
bool missing_ok);
extern Oid GetForeignDataWrapperOidByName(const char *name, bool missing_ok);
+extern ForeignTable *GetForeignTable(Oid relid);
+extern bool IsForeignTable(Oid relid);
+extern Oid GetFdwValidator(Oid relid);
+extern List *GetGenericOptionsPerColumn(Oid relid, int2 attnum);
+
+extern int flatten_generic_options(List *options,
+ const char **keywords, const char **values);
+
+/* ALTER FOREIGN TABLE ... OPTIONS (...) handlers */
+extern void ATExecGenericOptions(Relation rel, List *options);
#endif /* FOREIGN_H */
T_DropUserMappingStmt,
T_AlterTableSpaceOptionsStmt,
T_SecLabelStmt,
+ T_CreateForeignTableStmt,
/*
* TAGS FOR PARSE TREE NODES (parsenodes.h)
CREATE_TABLE_LIKE_INDEXES = 1 << 2,
CREATE_TABLE_LIKE_STORAGE = 1 << 3,
CREATE_TABLE_LIKE_COMMENTS = 1 << 4,
- CREATE_TABLE_LIKE_ALL = 0x7FFFFFFF
+ CREATE_TABLE_LIKE_ALL = 0x7FFFFFFF,
+ /* FOREIGN TABLE supports only CONSTRAINT/COMMENT. */
+ CREATE_TABLE_LIKE_FOREIGN_ALL = ( CREATE_TABLE_LIKE_CONSTRAINTS |
+ CREATE_TABLE_LIKE_COMMENTS)
} CreateStmtLikeOption;
/*
OBJECT_DOMAIN,
OBJECT_FDW,
OBJECT_FOREIGN_SERVER,
+ OBJECT_FOREIGN_TABLE,
OBJECT_FUNCTION,
OBJECT_INDEX,
OBJECT_LANGUAGE,
AT_EnableReplicaRule, /* ENABLE REPLICA RULE name */
AT_DisableRule, /* DISABLE RULE name */
AT_AddInherit, /* INHERIT parent */
- AT_DropInherit /* NO INHERIT parent */
+ AT_DropInherit, /* NO INHERIT parent */
+ AT_GenericOptions, /* OPTIONS (...) */
} AlterTableType;
typedef struct AlterTableCmd /* one subcommand of an ALTER TABLE */
ACL_OBJECT_DATABASE, /* database */
ACL_OBJECT_FDW, /* foreign-data wrapper */
ACL_OBJECT_FOREIGN_SERVER, /* foreign server */
+ ACL_OBJECT_FOREIGN_TABLE, /* foreign table */
ACL_OBJECT_FUNCTION, /* function */
ACL_OBJECT_LANGUAGE, /* procedural language */
ACL_OBJECT_LARGEOBJECT, /* largeobject */
{
NodeTag type;
char *fdwname; /* foreign-data wrapper name */
- List *validator; /* optional validator function (qual. name) */
+ List *func_options; /* VALIDATOR/HANDLER conbination */
List *options; /* generic options to FDW */
} CreateFdwStmt;
{
NodeTag type;
char *fdwname; /* foreign-data wrapper name */
- List *validator; /* optional validator function (qual. name) */
- bool change_validator;
+ List *func_options; /* VALIDATOR/HANDLER conbination */
List *options; /* generic options to FDW */
} AlterFdwStmt;
DropBehavior behavior; /* drop behavior - cascade/restrict */
} DropForeignServerStmt;
+/* ----------------------
+ * Create FOREIGN TABLE Statements
+ * ----------------------
+ */
+
+typedef struct CreateForeignTableStmt
+{
+ CreateStmt base;
+ char *servername;
+ List *options;
+} CreateForeignTableStmt;
+
/* ----------------------
* Create/Drop USER MAPPING Statements
* ----------------------
#define ACL_ALL_RIGHTS_DATABASE (ACL_CREATE|ACL_CREATE_TEMP|ACL_CONNECT)
#define ACL_ALL_RIGHTS_FDW (ACL_USAGE)
#define ACL_ALL_RIGHTS_FOREIGN_SERVER (ACL_USAGE)
+#define ACL_ALL_RIGHTS_FOREIGN_TABLE (ACL_SELECT)
#define ACL_ALL_RIGHTS_FUNCTION (ACL_EXECUTE)
#define ACL_ALL_RIGHTS_LANGUAGE (ACL_USAGE)
#define ACL_ALL_RIGHTS_LARGEOBJECT (ACL_SELECT|ACL_UPDATE)
ACL_KIND_TSCONFIGURATION, /* pg_ts_config */
ACL_KIND_FDW, /* pg_foreign_data_wrapper */
ACL_KIND_FOREIGN_SERVER, /* pg_foreign_server */
+ ACL_KIND_FOREIGN_TABLE, /* pg_foreign_table */
MAX_ACL_KIND /* MUST BE LAST */
} AclObjectKind;
extern Datum pg_node_tree_out(PG_FUNCTION_ARGS);
extern Datum pg_node_tree_recv(PG_FUNCTION_ARGS);
extern Datum pg_node_tree_send(PG_FUNCTION_ARGS);
+extern Datum fdw_handler_in(PG_FUNCTION_ARGS);
+extern Datum fdw_handler_out(PG_FUNCTION_ARGS);
/* regexp.c */
extern Datum nameregexeq(PG_FUNCTION_ARGS);
#define ERRCODE_CONFIG_FILE_ERROR MAKE_SQLSTATE('F','0', '0','0','0')
#define ERRCODE_LOCK_FILE_EXISTS MAKE_SQLSTATE('F','0', '0','0','1')
+/* Class HV - Foreign data wrapper Error (SQL/MED-specific error class) */
+#define ERRCODE_FDW_ERROR MAKE_SQLSTATE('H','V', '0','0','0')
+#define ERRCODE_FDW_COLUMN_NAME_NOT_FOUND MAKE_SQLSTATE('H','V', '0','0','5')
+#define ERRCODE_FDW_DYNAMIC_PARAMETER_VALUE_NEEDED MAKE_SQLSTATE('H','V', '0','0','2')
+#define ERRCODE_FDW_FUNCTION_SEQUENCE_ERROR MAKE_SQLSTATE('H','V', '0','1','0')
+#define ERRCODE_FDW_INCONSISTENT_DESCRIPTOR_INFORMATION MAKE_SQLSTATE('H','V', '0','2','1')
+#define ERRCODE_FDW_INVALID_ATTRIBUTE_VALUE MAKE_SQLSTATE('H','V', '0','2','4')
+#define ERRCODE_FDW_INVALID_COLUMN_NAME MAKE_SQLSTATE('H','V', '0','0','7')
+#define ERRCODE_FDW_INVALID_COLUMN_NUMBER MAKE_SQLSTATE('H','V', '0','0','8')
+#define ERRCODE_FDW_INVALID_DATA_TYPE MAKE_SQLSTATE('H','V', '0','0','4')
+#define ERRCODE_FDW_INVALID_DATA_TYPE_DESCRIPTORS MAKE_SQLSTATE('H','V', '0','0','6')
+#define ERRCODE_FDW_INVALID_DESCRIPTOR_FIELD_IDENTIFIER MAKE_SQLSTATE('H','V', '0','9','1')
+#define ERRCODE_FDW_INVALID_HANDLE MAKE_SQLSTATE('H','V', '0','0','B')
+#define ERRCODE_FDW_INVALID_OPTION_INDEX MAKE_SQLSTATE('H','V', '0','0','C')
+#define ERRCODE_FDW_INVALID_OPTION_NAME MAKE_SQLSTATE('H','V', '0','0','D')
+#define ERRCODE_FDW_INVALID_STRING_LENGTH_OR_BUFFER_LENGTH MAKE_SQLSTATE('H','V', '0','9','0')
+#define ERRCODE_FDW_INVALID_STRING_FORMAT MAKE_SQLSTATE('H','V', '0','0','A')
+#define ERRCODE_FDW_INVALID_USE_OF_NULL_POINTER MAKE_SQLSTATE('H','V', '0','0','9')
+#define ERRCODE_FDW_TOO_MANY_HANDLES MAKE_SQLSTATE('H','V', '0','1','4')
+#define ERRCODE_FDW_OUT_OF_MEMORY MAKE_SQLSTATE('H','V', '0','0','1')
+#define ERRCODE_FDW_NO_SCHEMAS MAKE_SQLSTATE('H','V', '0','0','P')
+#define ERRCODE_FDW_OPTION_NAME_NOT_FOUND MAKE_SQLSTATE('H','V', '0','0','J')
+#define ERRCODE_FDW_REPLY_HANDLE MAKE_SQLSTATE('H','V', '0','0','K')
+#define ERRCODE_FDW_SCHEMA_NOT_FOUND MAKE_SQLSTATE('H','V', '0','0','Q')
+#define ERRCODE_FDW_TABLE_NOT_FOUND MAKE_SQLSTATE('H','V', '0','0','R')
+#define ERRCODE_FDW_UNALBE_TO_CREATE_EXECUTION MAKE_SQLSTATE('H','V', '0','0','L')
+#define ERRCODE_FDW_UNABLE_TO_CREATE_REPLY MAKE_SQLSTATE('H','V', '0','0','M')
+#define ERRCODE_FDW_UNABLE_TO_ESTABLISH_CONNECTION MAKE_SQLSTATE('H','V', '0','0','N')
+
/* Class P0 - PL/pgSQL Error (PostgreSQL-specific error class) */
#define ERRCODE_PLPGSQL_ERROR MAKE_SQLSTATE('P','0', '0','0','0')
#define ERRCODE_RAISE_EXCEPTION MAKE_SQLSTATE('P','0', '0','0','1')
FOREIGNDATAWRAPPEROID,
FOREIGNSERVERNAME,
FOREIGNSERVEROID,
+ FOREIGNTABLEREL,
INDEXRELID,
LANGNAME,
LANGOID,
-- try creating a view and altering that, should fail
create view myview as select * from atacc1;
alter table myview alter column test drop not null;
-ERROR: "myview" is not a table
+ERROR: "myview" is not a table or foreign table
alter table myview alter column test set not null;
-ERROR: "myview" is not a table
+ERROR: "myview" is not a table or foreign table
drop view myview;
drop table atacc1;
-- test inheritance
(0 rows)
alter table myview drop d;
-ERROR: "myview" is not a table or composite type
+ERROR: "myview" is not a table or composite type or foreign table
drop view myview;
-- test some commands to make sure they fail on the dropped column
analyze atacc1(a);
CREATE ROLE regress_test_role_super SUPERUSER;
CREATE ROLE regress_test_indirect;
CREATE ROLE unprivileged_role;
+CREATE SCHEMA foreign_schema;
CREATE FOREIGN DATA WRAPPER dummy;
CREATE FOREIGN DATA WRAPPER postgresql VALIDATOR postgresql_fdw_validator;
-- At this point we should have 2 built-in wrappers and no servers.
-SELECT fdwname, fdwvalidator::regproc, fdwoptions FROM pg_foreign_data_wrapper ORDER BY 1, 2, 3;
- fdwname | fdwvalidator | fdwoptions
-------------+--------------------------+------------
- dummy | - |
- postgresql | postgresql_fdw_validator |
+SELECT fdwname, fdwvalidator::regproc, fdwhandler::regproc, fdwoptions FROM pg_foreign_data_wrapper ORDER BY fdwname;
+ fdwname | fdwvalidator | fdwhandler | fdwoptions
+------------+--------------------------+------------+------------
+ dummy | - | - |
+ postgresql | postgresql_fdw_validator | - |
(2 rows)
SELECT srvname, srvoptions FROM pg_foreign_server;
ERROR: function bar(text[], oid) does not exist
CREATE FOREIGN DATA WRAPPER foo;
\dew
- List of foreign-data wrappers
- Name | Owner | Validator
-------------+-------------------+--------------------------
- dummy | foreign_data_user | -
- foo | foreign_data_user | -
- postgresql | foreign_data_user | postgresql_fdw_validator
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator
+------------+-------------------+---------+--------------------------
+ dummy | foreign_data_user | - | -
+ foo | foreign_data_user | - | -
+ postgresql | foreign_data_user | - | postgresql_fdw_validator
(3 rows)
CREATE FOREIGN DATA WRAPPER foo; -- duplicate
DROP FOREIGN DATA WRAPPER foo;
CREATE FOREIGN DATA WRAPPER foo OPTIONS (testing '1');
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+-------------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | - | | {testing=1}
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+-------------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | - | | {testing=1}
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
DROP FOREIGN DATA WRAPPER foo;
ERROR: option "testing" provided more than once
CREATE FOREIGN DATA WRAPPER foo OPTIONS (testing '1', another '2');
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+-----------------------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | - | | {testing=1,another=2}
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+-----------------------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | - | | {testing=1,another=2}
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
DROP FOREIGN DATA WRAPPER foo;
RESET ROLE;
CREATE FOREIGN DATA WRAPPER foo VALIDATOR postgresql_fdw_validator;
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+---------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | postgresql_fdw_validator | |
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+---------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | postgresql_fdw_validator | |
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
-- ALTER FOREIGN DATA WRAPPER
ERROR: function bar(text[], oid) does not exist
ALTER FOREIGN DATA WRAPPER foo NO VALIDATOR;
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+---------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | - | |
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+---------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | - | |
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
ALTER FOREIGN DATA WRAPPER foo OPTIONS (a '1', b '2');
ERROR: option "c" not found
ALTER FOREIGN DATA WRAPPER foo OPTIONS (ADD x '1', DROP x);
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+-----------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | - | | {a=1,b=2}
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+-----------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | - | | {a=1,b=2}
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
ALTER FOREIGN DATA WRAPPER foo OPTIONS (DROP a, SET b '3', ADD c '4');
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+-----------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | - | | {b=3,c=4}
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+-----------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | - | | {b=3,c=4}
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
ALTER FOREIGN DATA WRAPPER foo OPTIONS (a '2');
ALTER FOREIGN DATA WRAPPER foo OPTIONS (b '4'); -- ERROR
ERROR: option "b" provided more than once
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+---------------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | - | | {b=3,c=4,a=2}
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+---------------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | - | | {b=3,c=4,a=2}
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
SET ROLE regress_test_role;
SET ROLE regress_test_role_super;
ALTER FOREIGN DATA WRAPPER foo OPTIONS (ADD d '5');
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+-------------------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | - | | {b=3,c=4,a=2,d=5}
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+-------------------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | - | | {b=3,c=4,a=2,d=5}
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
ALTER FOREIGN DATA WRAPPER foo OWNER TO regress_test_role; -- ERROR
HINT: Must be superuser to alter a foreign-data wrapper.
RESET ROLE;
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------------+--------------------------+-------------------+-------------------
- dummy | foreign_data_user | - | |
- foo | regress_test_role_super | - | | {b=3,c=4,a=2,d=5}
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------------+---------+--------------------------+-------------------+-------------------
+ dummy | foreign_data_user | - | - | |
+ foo | regress_test_role_super | - | - | | {b=3,c=4,a=2,d=5}
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
-- DROP FOREIGN DATA WRAPPER
DROP FOREIGN DATA WRAPPER IF EXISTS nonexistent;
NOTICE: foreign-data wrapper "nonexistent" does not exist, skipping
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------------+--------------------------+-------------------+-------------------
- dummy | foreign_data_user | - | |
- foo | regress_test_role_super | - | | {b=3,c=4,a=2,d=5}
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------------+---------+--------------------------+-------------------+-------------------
+ dummy | foreign_data_user | - | - | |
+ foo | regress_test_role_super | - | - | | {b=3,c=4,a=2,d=5}
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
DROP ROLE regress_test_role_super; -- ERROR
DROP FOREIGN DATA WRAPPER foo;
DROP ROLE regress_test_role_super;
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+---------
- dummy | foreign_data_user | - | |
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+---------
+ dummy | foreign_data_user | - | - | |
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(2 rows)
CREATE FOREIGN DATA WRAPPER foo;
CREATE SERVER s1 FOREIGN DATA WRAPPER foo;
CREATE USER MAPPING FOR current_user SERVER s1;
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+---------
- dummy | foreign_data_user | - | |
- foo | foreign_data_user | - | |
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+---------
+ dummy | foreign_data_user | - | - | |
+ foo | foreign_data_user | - | - | |
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(3 rows)
\des+
DETAIL: drop cascades to server s1
drop cascades to user mapping for foreign_data_user
\dew+
- List of foreign-data wrappers
- Name | Owner | Validator | Access privileges | Options
-------------+-------------------+--------------------------+-------------------+---------
- dummy | foreign_data_user | - | |
- postgresql | foreign_data_user | postgresql_fdw_validator | |
+ List of foreign-data wrappers
+ Name | Owner | Handler | Validator | Access privileges | Options
+------------+-------------------+---------+--------------------------+-------------------+---------
+ dummy | foreign_data_user | - | - | |
+ postgresql | foreign_data_user | - | postgresql_fdw_validator | |
(2 rows)
\des+
RESET ROLE;
REVOKE regress_test_indirect FROM regress_test_role;
+CREATE SERVER sc FOREIGN DATA WRAPPER dummy;
-- ALTER SERVER
ALTER SERVER s0; -- ERROR
ERROR: syntax error at or near ";"
| | | regress_test_role2=U*/foreign_data_user | | |
s7 | foreign_data_user | foo | | oracle | 17.0 | {host=a,dbname=b}
s8 | foreign_data_user | postgresql | | | | {host=localhost,dbname=s8db}
+ sc | foreign_data_user | dummy | | | |
t1 | regress_test_role | foo | | | |
t2 | regress_test_role | foo | | | |
-(10 rows)
+(11 rows)
SET ROLE regress_test_role;
ALTER SERVER s1 VERSION '1.1'; -- ERROR
| | | regress_test_role2=U*/foreign_data_user | | |
s7 | foreign_data_user | foo | | oracle | 17.0 | {host=a,dbname=b}
s8 | foreign_data_user | postgresql | | | | {dbname=db1,connect_timeout=30}
+ sc | foreign_data_user | dummy | | | |
t1 | regress_test_role | foo | | | |
t2 | regress_test_role | foo | | | |
-(10 rows)
+(11 rows)
-- DROP SERVER
DROP SERVER nonexistent; -- ERROR
s6 | foreign_data_user | foo
s7 | foreign_data_user | foo
s8 | foreign_data_user | postgresql
+ sc | foreign_data_user | dummy
t1 | regress_test_role | foo
t2 | regress_test_role | foo
-(10 rows)
+(11 rows)
SET ROLE regress_test_role;
DROP SERVER s2; -- ERROR
s6 | foreign_data_user | foo
s7 | foreign_data_user | foo
s8 | foreign_data_user | postgresql
+ sc | foreign_data_user | dummy
t1 | regress_test_role | foo
t2 | regress_test_role | foo
-(9 rows)
+(10 rows)
ALTER SERVER s2 OWNER TO regress_test_role;
SET ROLE regress_test_role;
s6 | foreign_data_user | foo
s7 | foreign_data_user | foo
s8 | foreign_data_user | postgresql
+ sc | foreign_data_user | dummy
t1 | regress_test_role | foo
t2 | regress_test_role | foo
-(8 rows)
+(9 rows)
CREATE USER MAPPING FOR current_user SERVER s3;
\deu
s6 | foreign_data_user | foo
s7 | foreign_data_user | foo
s8 | foreign_data_user | postgresql
+ sc | foreign_data_user | dummy
t1 | regress_test_role | foo
t2 | regress_test_role | foo
-(7 rows)
+(8 rows)
\deu
List of user mappings
CREATE USER MAPPING FOR public SERVER s8; -- ERROR
ERROR: must be owner of foreign server s8
RESET ROLE;
+CREATE USER MAPPING FOR public SERVER sc;
ALTER SERVER t1 OWNER TO regress_test_indirect;
SET ROLE regress_test_role;
CREATE USER MAPPING FOR current_user SERVER t1 OPTIONS (username 'bob', password 'boo');
s5 | regress_test_role
s6 | regress_test_role
s8 | foreign_data_user
+ sc | public
t1 | public
t1 | regress_test_role
-(7 rows)
+(8 rows)
-- ALTER USER MAPPING
ALTER USER MAPPING FOR regress_test_missing_role SERVER s4 OPTIONS (gotcha 'true'); -- ERROR
s5 | regress_test_role | {modified=1}
s6 | regress_test_role | {username=test}
s8 | foreign_data_user | {password=public}
+ sc | public |
t1 | public | {modified=1}
t1 | regress_test_role | {username=bob,password=boo}
-(7 rows)
+(8 rows)
-- DROP USER MAPPING
DROP USER MAPPING FOR regress_test_missing_role SERVER s4; -- ERROR
s6 | regress_test_role
s8 | foreign_data_user
s8 | public
+ sc | public
t1 | public
t1 | regress_test_role
-(8 rows)
+(9 rows)
+-- CREATE FOREIGN TABLE
+CREATE TABLE t1 (
+ c1 integer NOT NULL,
+ c2 text,
+ c3 date CHECK (c3 > '2000-01-01'::date),
+ CONSTRAINT t1_c1_check CHECK (c1 > 0)
+);
+CREATE TABLE t2 ();
+CREATE TABLE f1
+CREATE FOREIGN TABLE ft1 (); -- ERROR
+ERROR: syntax error at or near "CREATE"
+LINE 2: CREATE FOREIGN TABLE ft1 ();
+ ^
+CREATE FOREIGN TABLE ft1 () SERVER no_server; -- ERROR
+ERROR: server "no_server" does not exist
+CREATE FOREIGN TABLE ft1 () INHERITS () SERVER sc; -- ERROR
+ERROR: syntax error at or near ")"
+LINE 1: CREATE FOREIGN TABLE ft1 () INHERITS () SERVER sc;
+ ^
+CREATE FOREIGN TABLE ft1 () INHERITS (no_table) SERVER sc; -- ERROR
+ERROR: relation "no_table" does not exist
+CREATE FOREIGN TABLE ft1 (c1 serial) SERVER sc; -- ERROR
+NOTICE: CREATE TABLE will create implicit sequence "ft1_c1_seq" for serial column "ft1.c1"
+ERROR: referenced relation "ft1" is not a table
+CREATE FOREIGN TABLE ft1 () SERVER sc WITH OIDS; -- ERROR
+ERROR: syntax error at or near "WITH OIDS"
+LINE 1: CREATE FOREIGN TABLE ft1 () SERVER sc WITH OIDS;
+ ^
+CREATE FOREIGN TABLE ft1 (
+ c1 integer NOT NULL,
+ c2 text,
+ c3 date CHECK (c3 > '2000-01-01'::date),
+ CONSTRAINT ft1_c1_check CHECK (c1 > 0)
+) SERVER sc OPTIONS (delimiter ',', quote '"');
+\d+ ft1
+ Foreign table "public.ft1"
+ Column | Type | Modifiers | Storage | Description
+--------+---------+-----------+----------+-------------
+ c1 | integer | not null | plain |
+ c2 | text | | extended |
+ c3 | date | | plain |
+Check constraints:
+ "ft1_c1_check" CHECK (c1 > 0)
+ "ft1_c3_check" CHECK (c3 > '01-01-2000'::date)
+Server: sc
+Has OIDs: no
+
+CREATE FOREIGN TABLE ft2 () INHERITS (t1) SERVER sc OPTIONS (delimiter ' ', quote '`');
+\d+ ft2
+ Foreign table "public.ft2"
+ Column | Type | Modifiers | Storage | Description
+--------+---------+-----------+----------+-------------
+ c1 | integer | not null | plain |
+ c2 | text | | extended |
+ c3 | date | | plain |
+Check constraints:
+ "t1_c1_check" CHECK (c1 > 0)
+ "t1_c3_check" CHECK (c3 > '01-01-2000'::date)
+Server: sc
+Inherits: t1
+Has OIDs: no
+
+\det+
+ List of foreign tables
+ Schema | Table | Server | Options
+--------+-------+--------+----------------------------
+ public | ft1 | sc | {"delimiter=,","quote=\""}
+ public | ft2 | sc | {"delimiter= ",quote=`}
+(2 rows)
+
+CREATE INDEX id_ft1_c2 ON ft1 (c2); -- ERROR
+ERROR: "ft1" is not a table
+-- ALTER FOREIGN TABLE
+COMMENT ON FOREIGN TABLE ft1 IS 'foreign table';
+COMMENT ON FOREIGN TABLE ft1 IS NULL;
+COMMENT ON COLUMN ft1.c1 IS 'foreign column';
+COMMENT ON COLUMN ft1.c1 IS NULL;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c4 integer;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c5 integer DEFAULT 0; -- ERROR
+ERROR: syntax error at or near "DEFAULT"
+LINE 1: ALTER FOREIGN TABLE ft1 ADD COLUMN c5 integer DEFAULT 0;
+ ^
+ALTER FOREIGN TABLE ft1 ADD COLUMN c6 integer;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c7 integer NOT NULL;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c8 integer;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c9 integer;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c10 integer;
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c4 SET DEFAULT 0; -- ERROR
+ERROR: syntax error at or near "DEFAULT"
+LINE 1: ALTER FOREIGN TABLE ft1 ALTER COLUMN c4 SET DEFAULT 0;
+ ^
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c5 DROP DEFAULT; -- ERROR
+ERROR: syntax error at or near "DEFAULT"
+LINE 1: ALTER FOREIGN TABLE ft1 ALTER COLUMN c5 DROP DEFAULT;
+ ^
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c6 SET NOT NULL;
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c7 DROP NOT NULL;
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 TYPE char(10) using '0'; -- ERROR
+ERROR: syntax error at or near "using"
+LINE 1: ...R FOREIGN TABLE ft1 ALTER COLUMN c8 TYPE char(10) using '0';
+ ^
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 TYPE char(10);
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 SET DATA TYPE text;
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c9 < 0);
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT no_const; -- ERROR
+ERROR: constraint "no_const" of relation "ft1" does not exist
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT IF EXISTS no_const;
+NOTICE: constraint "no_const" of relation "ft1" does not exist, skipping
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c1_check;
+ALTER FOREIGN TABLE ft1 SET WITH OIDS; -- ERROR
+ERROR: syntax error at or near "WITH OIDS"
+LINE 1: ALTER FOREIGN TABLE ft1 SET WITH OIDS;
+ ^
+ALTER FOREIGN TABLE ft1 INHERIT t2;
+ALTER FOREIGN TABLE ft1 NO INHERIT t2;
+ALTER FOREIGN TABLE ft1 OWNER TO regress_test_role;
+ALTER FOREIGN TABLE ft1 OPTIONS (DROP delimiter, SET quote '~', ADD escape '@');
+ALTER FOREIGN TABLE ft1 DROP COLUMN no_column; -- ERROR
+ERROR: column "no_column" of relation "ft1" does not exist
+ALTER FOREIGN TABLE ft1 DROP COLUMN IF EXISTS no_column;
+NOTICE: column "no_column" of relation "ft1" does not exist, skipping
+ALTER FOREIGN TABLE ft1 DROP COLUMN c9;
+ALTER FOREIGN TABLE ft1 SET SCHEMA foreign_schema;
+ALTER FOREIGN TABLE ft1 SET TABLESPACE ts; -- ERROR
+ERROR: syntax error at or near "TABLESPACE"
+LINE 1: ALTER FOREIGN TABLE ft1 SET TABLESPACE ts;
+ ^
+ALTER FOREIGN TABLE foreign_schema.ft1 RENAME c1 TO foreign_column_1;
+ALTER FOREIGN TABLE foreign_schema.ft1 RENAME TO foreign_table_1;
+\d foreign_schema.foreign_table_1
+Foreign table "foreign_schema.foreign_table_1"
+ Column | Type | Modifiers
+------------------+---------+-----------
+ foreign_column_1 | integer | not null
+ c2 | text |
+ c3 | date |
+ c4 | integer |
+ c6 | integer | not null
+ c7 | integer |
+ c8 | text |
+ c10 | integer |
+Check constraints:
+ "ft1_c3_check" CHECK (c3 > '01-01-2000'::date)
+Server: sc
+
+-- DROP FOREIGN TABLE
+DROP FOREIGN TABLE no_table; -- ERROR
+ERROR: foreign table "no_table" does not exist
+DROP FOREIGN TABLE IF EXISTS no_table;
+NOTICE: foreign table "no_table" does not exist, skipping
+DROP FOREIGN TABLE foreign_schema.foreign_table_1;
-- Information schema
SELECT * FROM information_schema.foreign_data_wrappers ORDER BY 1, 2;
foreign_data_wrapper_catalog | foreign_data_wrapper_name | authorization_identifier | library_name | foreign_data_wrapper_language
regression | s5 | regression | foo | | 15.0 | regress_test_role
regression | s6 | regression | foo | | 16.0 | regress_test_indirect
regression | s8 | regression | postgresql | | | foreign_data_user
+ regression | sc | regression | dummy | | | foreign_data_user
regression | t1 | regression | foo | | | regress_test_indirect
regression | t2 | regression | foo | | | regress_test_role
-(6 rows)
+(7 rows)
SELECT * FROM information_schema.foreign_server_options ORDER BY 1, 2, 3;
foreign_server_catalog | foreign_server_name | option_name | option_value
foreign_data_user | regression | s8
PUBLIC | regression | s4
PUBLIC | regression | s8
+ PUBLIC | regression | sc
PUBLIC | regression | t1
regress_test_role | regression | s5
regress_test_role | regression | s6
regress_test_role | regression | t1
-(8 rows)
+(9 rows)
SELECT * FROM information_schema.user_mapping_options ORDER BY lower(authorization_identifier), 2, 3, 4;
authorization_identifier | foreign_server_catalog | foreign_server_name | option_name | option_value
foreign_data_user | regress_test_role2 | regression | | s6 | FOREIGN SERVER | USAGE | YES
(4 rows)
+SELECT * FROM information_schema.foreign_tables ORDER BY 1, 2, 3;
+ foreign_table_catalog | foreign_table_schema | foreign_table_name | foreign_server_catalog | foreign_server_name
+-----------------------+----------------------+--------------------+------------------------+---------------------
+ regression | public | ft2 | regression | sc
+(1 row)
+
+SELECT * FROM information_schema.foreign_table_options ORDER BY 1, 2, 3, 4;
+ foreign_table_catalog | foreign_table_schema | foreign_table_name | option_name | option_value
+-----------------------+----------------------+--------------------+-------------+--------------
+ regression | public | ft2 | delimiter |
+ regression | public | ft2 | quote | `
+(2 rows)
+
SET ROLE regress_test_role;
SELECT * FROM information_schema.user_mapping_options ORDER BY 1, 2, 3, 4;
authorization_identifier | foreign_server_catalog | foreign_server_name | option_name | option_value
ERROR: must be owner of foreign server s9
RESET ROLE;
-- Cleanup
+DROP SCHEMA foreign_schema CASCADE;
+DROP TABLE t1 CASCADE;
+NOTICE: drop cascades to foreign table ft2
+DROP TABLE t2 CASCADE;
DROP ROLE regress_test_role; -- ERROR
ERROR: role "regress_test_role" cannot be dropped because some objects depend on it
DETAIL: privileges for server s4
DROP ROLE regress_test_role2;
DROP FOREIGN DATA WRAPPER postgresql CASCADE;
DROP FOREIGN DATA WRAPPER dummy CASCADE;
+NOTICE: drop cascades to 2 other objects
+DETAIL: drop cascades to server sc
+drop cascades to user mapping for public
\c
DROP ROLE foreign_data_user;
-- At this point we should have no wrappers, no servers, and no mappings.
-SELECT fdwname, fdwvalidator, fdwoptions FROM pg_foreign_data_wrapper;
- fdwname | fdwvalidator | fdwoptions
----------+--------------+------------
+SELECT fdwname, fdwvalidator, fdwhandler, fdwoptions FROM pg_foreign_data_wrapper;
+ fdwname | fdwvalidator | fdwhandler | fdwoptions
+---------+--------------+------------+------------
(0 rows)
SELECT srvname, srvoptions FROM pg_foreign_server;
pg_enum | t
pg_foreign_data_wrapper | t
pg_foreign_server | t
+ pg_foreign_table | t
pg_index | t
pg_inherits | t
pg_language | t
timetz_tbl | f
tinterval_tbl | f
varchar_tbl | f
-(143 rows)
+(144 rows)
--
-- another sanity check: every system catalog that has OIDs should have
-- Look for illegal values in pg_class fields
SELECT p1.oid, p1.relname
FROM pg_class as p1
-WHERE p1.relkind NOT IN ('r', 'i', 's', 'S', 'c', 't', 'v');
+WHERE p1.relkind NOT IN ('r', 'i', 's', 'S', 'c', 't', 'v', 'f');
oid | relname
-----+---------
(0 rows)
CREATE ROLE regress_test_indirect;
CREATE ROLE unprivileged_role;
+CREATE SCHEMA foreign_schema;
+
CREATE FOREIGN DATA WRAPPER dummy;
CREATE FOREIGN DATA WRAPPER postgresql VALIDATOR postgresql_fdw_validator;
-- At this point we should have 2 built-in wrappers and no servers.
-SELECT fdwname, fdwvalidator::regproc, fdwoptions FROM pg_foreign_data_wrapper ORDER BY 1, 2, 3;
+SELECT fdwname, fdwvalidator::regproc, fdwhandler::regproc, fdwoptions FROM pg_foreign_data_wrapper ORDER BY fdwname;
SELECT srvname, srvoptions FROM pg_foreign_server;
SELECT * FROM pg_user_mapping;
RESET ROLE;
REVOKE regress_test_indirect FROM regress_test_role;
+CREATE SERVER sc FOREIGN DATA WRAPPER dummy;
+
-- ALTER SERVER
ALTER SERVER s0; -- ERROR
ALTER SERVER s0 OPTIONS (a '1'); -- ERROR
CREATE USER MAPPING FOR current_user SERVER s7; -- ERROR
CREATE USER MAPPING FOR public SERVER s8; -- ERROR
RESET ROLE;
+CREATE USER MAPPING FOR public SERVER sc;
ALTER SERVER t1 OWNER TO regress_test_indirect;
SET ROLE regress_test_role;
DROP SERVER s7;
\deu
+-- CREATE FOREIGN TABLE
+CREATE TABLE t1 (
+ c1 integer NOT NULL,
+ c2 text,
+ c3 date CHECK (c3 > '2000-01-01'::date),
+ CONSTRAINT t1_c1_check CHECK (c1 > 0)
+);
+CREATE TABLE t2 ();
+CREATE TABLE f1
+CREATE FOREIGN TABLE ft1 (); -- ERROR
+CREATE FOREIGN TABLE ft1 () SERVER no_server; -- ERROR
+CREATE FOREIGN TABLE ft1 () INHERITS () SERVER sc; -- ERROR
+CREATE FOREIGN TABLE ft1 () INHERITS (no_table) SERVER sc; -- ERROR
+CREATE FOREIGN TABLE ft1 (c1 serial) SERVER sc; -- ERROR
+CREATE FOREIGN TABLE ft1 () SERVER sc WITH OIDS; -- ERROR
+CREATE FOREIGN TABLE ft1 (
+ c1 integer NOT NULL,
+ c2 text,
+ c3 date CHECK (c3 > '2000-01-01'::date),
+ CONSTRAINT ft1_c1_check CHECK (c1 > 0)
+) SERVER sc OPTIONS (delimiter ',', quote '"');
+\d+ ft1
+CREATE FOREIGN TABLE ft2 () INHERITS (t1) SERVER sc OPTIONS (delimiter ' ', quote '`');
+\d+ ft2
+\det+
+CREATE INDEX id_ft1_c2 ON ft1 (c2); -- ERROR
+
+-- ALTER FOREIGN TABLE
+COMMENT ON FOREIGN TABLE ft1 IS 'foreign table';
+COMMENT ON FOREIGN TABLE ft1 IS NULL;
+COMMENT ON COLUMN ft1.c1 IS 'foreign column';
+COMMENT ON COLUMN ft1.c1 IS NULL;
+
+ALTER FOREIGN TABLE ft1 ADD COLUMN c4 integer;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c5 integer DEFAULT 0; -- ERROR
+ALTER FOREIGN TABLE ft1 ADD COLUMN c6 integer;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c7 integer NOT NULL;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c8 integer;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c9 integer;
+ALTER FOREIGN TABLE ft1 ADD COLUMN c10 integer;
+
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c4 SET DEFAULT 0; -- ERROR
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c5 DROP DEFAULT; -- ERROR
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c6 SET NOT NULL;
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c7 DROP NOT NULL;
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 TYPE char(10) using '0'; -- ERROR
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 TYPE char(10);
+ALTER FOREIGN TABLE ft1 ALTER COLUMN c8 SET DATA TYPE text;
+ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c9_check CHECK (c9 < 0);
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT no_const; -- ERROR
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT IF EXISTS no_const;
+ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c1_check;
+ALTER FOREIGN TABLE ft1 SET WITH OIDS; -- ERROR
+ALTER FOREIGN TABLE ft1 INHERIT t2;
+ALTER FOREIGN TABLE ft1 NO INHERIT t2;
+ALTER FOREIGN TABLE ft1 OWNER TO regress_test_role;
+ALTER FOREIGN TABLE ft1 OPTIONS (DROP delimiter, SET quote '~', ADD escape '@');
+ALTER FOREIGN TABLE ft1 DROP COLUMN no_column; -- ERROR
+ALTER FOREIGN TABLE ft1 DROP COLUMN IF EXISTS no_column;
+ALTER FOREIGN TABLE ft1 DROP COLUMN c9;
+ALTER FOREIGN TABLE ft1 SET SCHEMA foreign_schema;
+ALTER FOREIGN TABLE ft1 SET TABLESPACE ts; -- ERROR
+ALTER FOREIGN TABLE foreign_schema.ft1 RENAME c1 TO foreign_column_1;
+ALTER FOREIGN TABLE foreign_schema.ft1 RENAME TO foreign_table_1;
+\d foreign_schema.foreign_table_1
+
+-- DROP FOREIGN TABLE
+DROP FOREIGN TABLE no_table; -- ERROR
+DROP FOREIGN TABLE IF EXISTS no_table;
+DROP FOREIGN TABLE foreign_schema.foreign_table_1;
+
-- Information schema
SELECT * FROM information_schema.foreign_data_wrappers ORDER BY 1, 2;
SELECT * FROM information_schema.user_mapping_options ORDER BY lower(authorization_identifier), 2, 3, 4;
SELECT * FROM information_schema.usage_privileges WHERE object_type LIKE 'FOREIGN%' ORDER BY 1, 2, 3, 4, 5;
SELECT * FROM information_schema.role_usage_grants WHERE object_type LIKE 'FOREIGN%' ORDER BY 1, 2, 3, 4, 5;
+SELECT * FROM information_schema.foreign_tables ORDER BY 1, 2, 3;
+SELECT * FROM information_schema.foreign_table_options ORDER BY 1, 2, 3, 4;
SET ROLE regress_test_role;
SELECT * FROM information_schema.user_mapping_options ORDER BY 1, 2, 3, 4;
SELECT * FROM information_schema.usage_privileges WHERE object_type LIKE 'FOREIGN%' ORDER BY 1, 2, 3, 4, 5;
RESET ROLE;
-- Cleanup
+DROP SCHEMA foreign_schema CASCADE;
+DROP TABLE t1 CASCADE;
+DROP TABLE t2 CASCADE;
DROP ROLE regress_test_role; -- ERROR
DROP SERVER s5 CASCADE;
DROP SERVER t1 CASCADE;
DROP ROLE foreign_data_user;
-- At this point we should have no wrappers, no servers, and no mappings.
-SELECT fdwname, fdwvalidator, fdwoptions FROM pg_foreign_data_wrapper;
+SELECT fdwname, fdwvalidator, fdwhandler, fdwoptions FROM pg_foreign_data_wrapper;
SELECT srvname, srvoptions FROM pg_foreign_server;
SELECT * FROM pg_user_mapping;
SELECT p1.oid, p1.relname
FROM pg_class as p1
-WHERE p1.relkind NOT IN ('r', 'i', 's', 'S', 'c', 't', 'v');
+WHERE p1.relkind NOT IN ('r', 'i', 's', 'S', 'c', 't', 'v', 'f');
-- Indexes should have an access method, others not.
projects / users / hanada / postgres.git / commitdiff