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Add support for ALTER TABLE IF EXISTS ... RENAME CONSTRAINT

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Also add regression test.  Previously this was documented to work, but
didn't.
This commit is contained in:
Bruce Momjian
2015-03-24 19:52:47 -04:00
parent feeb526cfe
commit 1d8198bb44
4 changed files with 22 additions and 1 deletions
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9
src/backend/commands/tablecmds.c
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@ -2497,9 +2497,16 @@ RenameConstraint(RenameStmt *stmt)
{
/* lock level taken here should match rename_constraint_internal */
relid = RangeVarGetRelidExtended(stmt->relation, AccessExclusiveLock,
false, false,
stmt->missing_ok, false,
RangeVarCallbackForRenameAttribute,
NULL);
if (!OidIsValid(relid))
{
ereport(NOTICE,
(errmsg("relation \"%s\" does not exist, skipping",
stmt->relation->relname)));
return InvalidObjectAddress;
}
}
return