Apply Jeroen van Vianen's patch for failure to check heap_openr failure

in RI triggers.  This is fixed in another way in current sources, but
might as well apply this patch to REL7_0 branch so that 7.0.3 need not
suffer this crash.

diff --git a/src/backend/utils/adt/ri_triggers.c b/src/backend/utils/adt/ri_triggers.c
index 79010b53f75bc0b2107112809c4dc94758b5427e..053213a8594a46b77b893d67e94fb5c8aa269fcf 100644 (file)
--- a/src/backend/utils/adt/ri_triggers.c
+++ b/src/backend/utils/adt/ri_triggers.c
@@ -6,7 +6,7 @@
  *
  * 1999 Jan Wieck
  *
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/ri_triggers.c,v 1.14 2000/04/12 17:15:51 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/ri_triggers.c,v 1.14.2.1 2000/09/23 21:15:26 tgl Exp $
  *
  * ----------
  */
@@ -204,6 +204,13 @@ RI_FKey_check(FmgrInfo *proinfo)
     */
    fk_rel = trigdata->tg_relation;
    pk_rel = heap_openr(tgargs[RI_PK_RELNAME_ARGNO], NoLock);
+
+   if (pk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_PK_RELNAME_ARGNO]);
+   }
+
    if (TRIGGER_FIRED_BY_UPDATE(trigdata->tg_event))
    {
        old_row = trigdata->tg_trigtuple;
@@ -564,6 +571,12 @@ RI_FKey_noaction_del(FmgrInfo *proinfo)
    pk_rel = trigdata->tg_relation;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------
@@ -775,6 +788,12 @@ RI_FKey_noaction_upd(FmgrInfo *proinfo)
    new_row = trigdata->tg_newtuple;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------
@@ -990,6 +1009,12 @@ RI_FKey_cascade_del(FmgrInfo *proinfo)
    pk_rel = trigdata->tg_relation;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------
@@ -1189,6 +1214,12 @@ RI_FKey_cascade_upd(FmgrInfo *proinfo)
    new_row = trigdata->tg_newtuple;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------
@@ -1421,6 +1452,12 @@ RI_FKey_restrict_del(FmgrInfo *proinfo)
    pk_rel = trigdata->tg_relation;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------
@@ -1637,6 +1674,12 @@ RI_FKey_restrict_upd(FmgrInfo *proinfo)
    new_row = trigdata->tg_newtuple;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------
@@ -1852,6 +1895,12 @@ RI_FKey_setnull_del(FmgrInfo *proinfo)
    pk_rel = trigdata->tg_relation;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------
@@ -2064,6 +2113,12 @@ RI_FKey_setnull_upd(FmgrInfo *proinfo)
    old_row = trigdata->tg_trigtuple;
    match_type = ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]);
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (match_type)
    {
            /* ----------
@@ -2317,6 +2372,12 @@ RI_FKey_setdefault_del(FmgrInfo *proinfo)
    pk_rel = trigdata->tg_relation;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------
@@ -2573,9 +2634,14 @@ RI_FKey_setdefault_upd(FmgrInfo *proinfo)
    pk_rel = trigdata->tg_relation;
    new_row = trigdata->tg_newtuple;
    old_row = trigdata->tg_trigtuple;
-
    match_type = ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]);
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (match_type)
    {
            /* ----------
@@ -2842,6 +2908,12 @@ RI_FKey_keyequal_upd(void)
    new_row = trigdata->tg_newtuple;
    old_row = trigdata->tg_trigtuple;
 
+   if (fk_rel == NULL)
+   {
+       elog(ERROR, "RI constraint %s cannot find table %s",
+           tgargs[RI_CONSTRAINT_NAME_ARGNO], tgargs[RI_FK_RELNAME_ARGNO]);
+   }
+
    switch (ri_DetermineMatchType(tgargs[RI_MATCH_TYPE_ARGNO]))
    {
            /* ----------