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Back-patch the 8.3 fix that prohibits TRUNCATE, CLUSTER, and REINDEX when the

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current transaction has any open references to the target relation or index
(implying it has an active query using the relation).  Also back-patch the
8.2 fix that prohibits TRUNCATE and CLUSTER when there are pending
AFTER-trigger events.  Per suggestion from Heikki.
This commit is contained in:
Tom Lane
2008-05-27 21:13:50 +00:00
parent b74150668d
commit bda5491729
6 changed files with 158 additions and 45 deletions
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8
src/backend/commands/cluster.c
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.131.4.2 2007/09/12 15:16:23 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.131.4.3 2008/05/27 21:13:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -405,6 +405,12 @@ check_index_is_clusterable(Relation OldHeap, Oid indexOid)
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot cluster temporary tables of other sessions")));
/*
* Also check for active uses of the relation in the current transaction,
* including open scans and pending AFTER trigger events.
*/
CheckTableNotInUse(OldHeap, "CLUSTER");
/* Drop relcache refcnt on OldIndex, but keep lock */
index_close(OldIndex);
}