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New HeapTuple structure/interface.

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This commit is contained in:
Vadim B. Mikheev
1998-11-27 19:52:36 +00:00
parent 2435c7d501
commit 6beba218d7
65 changed files with 834 additions and 850 deletions
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21
src/backend/access/nbtree/nbtinsert.c
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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.30 1998/09/01 04:27:01 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.31 1998/11/27 19:51:40 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -96,13 +96,12 @@ _bt_doinsert(Relation rel, BTItem btitem, bool index_is_unique, Relation heapRel
/* key on the page before trying to compare it */
if (!PageIsEmpty(page) && offset <= maxoff)
{
TupleDesc itupdesc;
BTItem btitem;
IndexTuple itup;
HeapTuple htup;
BTPageOpaque opaque;
Buffer nbuf;
BlockNumber blkno;
TupleDesc itupdesc;
BTItem btitem;
HeapTupleData htup;
BTPageOpaque opaque;
Buffer nbuf;
BlockNumber blkno;
itupdesc = RelationGetDescr(rel);
nbuf = InvalidBuffer;
@@ -120,9 +119,9 @@ _bt_doinsert(Relation rel, BTItem btitem, bool index_is_unique, Relation heapRel
while (_bt_isequal(itupdesc, page, offset, natts, itup_scankey))
{ /* they're equal */
btitem = (BTItem) PageGetItem(page, PageGetItemId(page, offset));
itup = &(btitem->bti_itup);
htup = heap_fetch(heapRel, SnapshotSelf, &(itup->t_tid), &buffer);
if (htup != (HeapTuple) NULL)
htup.t_self = btitem->bti_itup.t_tid;
heap_fetch(heapRel, SnapshotSelf, &htup, &buffer);
if (htup.t_data != NULL)
{ /* it is a duplicate */
elog(ERROR, "Cannot insert a duplicate key into a unique index");
}