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-rw-r--r--src/backend/utils/mmgr/portalmem.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/backend/utils/mmgr/portalmem.c b/src/backend/utils/mmgr/portalmem.c
index 5dc60d9754f..852edd3f361 100644
--- a/src/backend/utils/mmgr/portalmem.c
+++ b/src/backend/utils/mmgr/portalmem.c
@@ -12,7 +12,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/mmgr/portalmem.c,v 1.120 2010/07/06 19:18:59 momjian Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/mmgr/portalmem.c,v 1.121 2010/07/13 09:02:30 heikki Exp $
*
*-------------------------------------------------------------------------
*/
@@ -379,6 +379,9 @@ PortalCreateHoldStore(Portal portal)
/*
* PinPortal
* Protect a portal from dropping.
+ *
+ * A pinned portal is still unpinned and dropped at transaction or
+ * subtransaction abort.
*/
void
PinPortal(Portal portal)
@@ -902,6 +905,14 @@ AtSubCleanup_Portals(SubTransactionId mySubid)
if (portal->createSubid != mySubid)
continue;
+ /*
+ * If a portal is still pinned, forcibly unpin it. PortalDrop will not
+ * let us drop the portal otherwise. Whoever pinned the portal was
+ * interrupted by the abort too and won't try to use it anymore.
+ */
+ if (portal->portalPinned)
+ portal->portalPinned = false;
+
/* Zap it. */
PortalDrop(portal, false);
}