Avoid memory leakage during VACUUM FULL when an index expression or

index predicate uses temporary memory for evaluation.  Per example
from Jean-Gerard Pailloncy.

diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c
index 93694e4..6de1563 100644 (file)
--- a/src/backend/commands/vacuum.c
+++ b/src/backend/commands/vacuum.c
@@ -13,7 +13,7 @@
  *
  *
  * IDENTIFICATION
- *       $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.297 2004/12/02 19:28:49 tgl Exp $
+ *       $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.298 2004/12/23 22:42:15 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2553,6 +2553,7 @@ move_chain_tuple(Relation rel,
        {
                ExecStoreTuple(&newtup, ec->slot, InvalidBuffer, false);
                ExecInsertIndexTuples(ec->slot, &(newtup.t_self), ec->estate, true);
+               ResetPerTupleExprContext(ec->estate);
        }
 }
 
@@ -2662,6 +2663,7 @@ move_plain_tuple(Relation rel,
        {
                ExecStoreTuple(&newtup, ec->slot, InvalidBuffer, false);
                ExecInsertIndexTuples(ec->slot, &(newtup.t_self), ec->estate, true);
+               ResetPerTupleExprContext(ec->estate);
        }
 }