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redo/undo support functions and cleanups.

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This commit is contained in:
Vadim B. Mikheev
2000-10-20 11:01:21 +00:00
parent e18a862d46
commit b58c0411ba
15 changed files with 726 additions and 167 deletions
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62
src/backend/access/nbtree/nbtree.c
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@ -12,7 +12,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtree.c,v 1.65 2000/10/13 12:05:20 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtree.c,v 1.66 2000/10/20 11:01:03 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@ -1261,44 +1261,40 @@ _bt_del_item(Relation reln, Buffer buffer, BTItem btitem, bool insert,
}
lp = PageGetItemId(page, offno);
if (ItemIdDeleted(lp)) /* marked for deletion */
{
if (!InRecovery)
elog(STOP, "btree_%s_undo: deleted target tuple in rollback",
(insert) ? "insert" : "split");
}
else if (InRecovery) /* check heap tuple */
{
int result;
CommandId cid;
RelFileNode hnode;
Size hsize = (insert) ? SizeOfBtreeInsert : SizeOfBtreeSplit;
memcpy(&cid, (char*)xlrec + hsize, sizeof(CommandId));
memcpy(&hnode, (char*)xlrec + hsize + sizeof(CommandId), sizeof(RelFileNode));
result = XLogIsOwnerOfTuple(hnode, &(btitem->bti_itup.t_tid),
record->xl_xid, cid);
if (result < 0) /* not owner */
{
UnlockAndReleaseBuffer(buffer);
return;
}
}
else if (! BufferIsUpdatable(buffer)) /* normal rollback */
if (InRecovery) /* check heap tuple */
{
lp->lp_flags |= LP_DELETE;
MarkBufferForCleanup(buffer, IndexPageCleanup);
if (!ItemIdDeleted(lp))
{
int result;
CommandId cid;
RelFileNode hnode;
Size hsize = (insert) ? SizeOfBtreeInsert : SizeOfBtreeSplit;
memcpy(&cid, (char*)xlrec + hsize, sizeof(CommandId));
memcpy(&hnode, (char*)xlrec + hsize + sizeof(CommandId), sizeof(RelFileNode));
result = XLogIsOwnerOfTuple(hnode, &(btitem->bti_itup.t_tid),
record->xl_xid, cid);
if (result < 0) /* not owner */
{
UnlockAndReleaseBuffer(buffer);
return;
}
}
PageIndexTupleDelete(page, offno);
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
pageop->btpo_flags |= BTP_REORDER;
UnlockAndWriteBuffer(buffer);
return;
}
PageIndexTupleDelete(page, offno);
if (InRecovery)
{
pageop = (BTPageOpaque) PageGetSpecialPointer(page);
pageop->btpo_flags |= BTP_REORDER;
}
UnlockAndWriteBuffer(buffer);
/* normal rollback */
if (ItemIdDeleted(lp)) /* marked for deletion ?! */
elog(STOP, "btree_%s_undo: deleted target tuple in rollback",
(insert) ? "insert" : "split");
lp->lp_flags |= LP_DELETE;
MarkBufferForCleanup(buffer, IndexPageCleanup);
return;
}