Fix HEAP_MOVED_OFF handling in HeapTupleSatisfiesDirty

(may be used while vacuuming unique btree-s).

diff --git a/src/backend/utils/time/tqual.c b/src/backend/utils/time/tqual.c
index 47f3e25..26c2d43 100644 (file)
--- a/src/backend/utils/time/tqual.c
+++ b/src/backend/utils/time/tqual.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.26 1999/03/28 20:32:29 vadim Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/utils/time/tqual.c,v 1.27 1999/04/05 10:55:49 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -411,6 +411,12 @@ HeapTupleSatisfiesDirty(HeapTupleHeader tuple)
 
                if (tuple->t_infomask & HEAP_MOVED_OFF)
                {
+                       /*
+                        * HeapTupleSatisfiesDirty is used by unique btree-s and so
+                        * may be used while vacuuming.
+                        */
+                       if (TransactionIdIsCurrentTransactionId((TransactionId)tuple->t_cmin))
+                               return false;
                        if (TransactionIdDidCommit((TransactionId)tuple->t_cmin))
                        {
                                tuple->t_infomask |= HEAP_XMIN_INVALID;
@@ -419,6 +425,8 @@ HeapTupleSatisfiesDirty(HeapTupleHeader tuple)
                }
                else if (tuple->t_infomask & HEAP_MOVED_IN)
                {
+                       if (TransactionIdIsCurrentTransactionId((TransactionId)tuple->t_cmin))
+                               return true;
                        if (!TransactionIdDidCommit((TransactionId)tuple->t_cmin))
                        {
                                tuple->t_infomask |= HEAP_XMIN_INVALID;