From 25d9bf2e3e66ee2e546c5c523d148ecab6ee1dcc Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Wed, 29 Jul 2009 20:56:21 +0000 Subject: Support deferrable uniqueness constraints. The current implementation fires an AFTER ROW trigger for each tuple that looks like it might be non-unique according to the index contents at the time of insertion. This works well as long as there aren't many conflicts, but won't scale to massive unique-key reassignments. Improving that case is a TODO item. Dean Rasheed --- src/backend/utils/adt/ruleutils.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'src/backend/utils/adt/ruleutils.c') diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c index 9767b9f1f50..752e84dbfea 100644 --- a/src/backend/utils/adt/ruleutils.c +++ b/src/backend/utils/adt/ruleutils.c @@ -9,7 +9,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.304 2009/07/24 21:08:42 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.305 2009/07/29 20:56:19 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1044,11 +1044,6 @@ pg_get_constraintdef_worker(Oid constraintId, bool fullCommand, if (string) appendStringInfo(&buf, " ON DELETE %s", string); - if (conForm->condeferrable) - appendStringInfo(&buf, " DEFERRABLE"); - if (conForm->condeferred) - appendStringInfo(&buf, " INITIALLY DEFERRED"); - break; } case CONSTRAINT_PRIMARY: @@ -1150,6 +1145,11 @@ pg_get_constraintdef_worker(Oid constraintId, bool fullCommand, break; } + if (conForm->condeferrable) + appendStringInfo(&buf, " DEFERRABLE"); + if (conForm->condeferred) + appendStringInfo(&buf, " INITIALLY DEFERRED"); + /* Cleanup */ ReleaseSysCache(tup); -- cgit v1.2.3