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This commit is contained in:
Vadim B. Mikheev
2000-10-13 12:05:22 +00:00
parent 14f214de59
commit deee783052
5 changed files with 187 additions and 23 deletions
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18
src/backend/access/nbtree/nbtinsert.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.65 2000/10/13 02:03:00 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtinsert.c,v 1.66 2000/10/13 12:05:20 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -612,6 +612,10 @@ _bt_split(Relation rel, Buffer buf, OffsetNumber firstright,
OffsetNumber maxoff;
OffsetNumber i;
#ifdef XLOG
BTItem lhikey;
#endif
rbuf = _bt_getbuf(rel, P_NEW, BT_WRITE);
origpage = BufferGetPage(buf);
leftpage = PageGetTempPage(origpage, sizeof(BTPageOpaqueData));
@@ -680,6 +684,9 @@ _bt_split(Relation rel, Buffer buf, OffsetNumber firstright,
itemsz = ItemIdGetLength(itemid);
item = (BTItem) PageGetItem(origpage, itemid);
}
#ifdef XLOG
lhikey = item;
#endif
if (PageAddItem(leftpage, (Item) item, itemsz, leftoff,
LP_USED) == InvalidOffsetNumber)
elog(STOP, "btree: failed to add hikey to the left sibling");
@@ -793,12 +800,19 @@ _bt_split(Relation rel, Buffer buf, OffsetNumber firstright,
memcpy(xlbuf + hsize, &(_xlheapRel->rd_node), sizeof(RelFileNode));
hsize += sizeof(RelFileNode);
}
else
{
Size itemsz = IndexTupleDSize(lhikey->bti_itup) +
(sizeof(BTItemData) - sizeof(IndexTupleData));
memcpy(xlbuf + hsize, (char*) lhikey, itemsz);
hsize += itemsz;
}
if (newitemonleft)
{
/*
* Read comments in _bt_pgaddtup.
* Actually, seems that in non-leaf splits newitem shouldn't
* go to first data key position.
* go to first data key position on left page.
*/
if (! P_ISLEAF(lopaque) && itup_off == P_FIRSTDATAKEY(lopaque))
{