Change get_constraint_index() to use pg_constraint.conindid
It was still using a scan of pg_depend instead of using the conindid
column that has been added since.
Since it is now just a catalog lookup wrapper and not related to
pg_depend, move from pg_depend.c to lsyscache.c.
Reviewed-by: Matthias van de Meent <[email protected]>
Reviewed-by: Tom Lane <[email protected]>
Reviewed-by: Michael Paquier <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/
4688d55c-9a2e-9a5a-d166-
5f24fe0bf8db%40enterprisedb.com