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Fix VALIDATE CONSTRAINT to consider NO INHERIT attribute.

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Currently, trying to validate a NO INHERIT constraint on the parent will
search for the constraint in child tables (where it is not supposed to
exist), wrongly causing a "constraint does not exist" error.

Amit Langote, per a report from Hans Buschmann.

Discussion: http://postgr.es/m/20170421184012.24362.19@wrigleys.postgresql.org
This commit is contained in:
Robert Haas
2017-04-28 14:48:38 -04:00
parent e4fddfd492
commit 6a4dda44e0
3 changed files with 38 additions and 2 deletions
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5
src/backend/commands/tablecmds.c
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@ -7704,9 +7704,10 @@ ATExecValidateConstraint(Relation rel, char *constrName, bool recurse,
/*
* If we're recursing, the parent has already done this, so skip
* it.
* it. Also, if the constraint is a NO INHERIT constraint, we
* shouldn't try to look for it in the children.
*/
if (!recursing)
if (!recursing && !con->connoinherit)
children = find_all_inheritors(RelationGetRelid(rel),
lockmode, NULL);