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Fix memory overhelding while forming index' result: 

memory allocation for ItemPointerData of heap' tuple is useless
because of FormRetrieveIndexResult makes neccessary palloc.
This commit is contained in:
Vadim B. Mikheev 1996-11-21 06:02:56 +00:00
parent 58802bf39a
commit 05b3b8613d
1 changed files with 9 additions and 15 deletions
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24
src/backend/access/gist/gistget.c
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@ -6,7 +6,7 @@
*
*
* IDENTIFICATION
* /usr/local/devel/pglite/cvs/src/backend/access/gisr/gistget.c,v 1.9 1995/08/01 20:16:02 jolly Exp
* /usr/local/devel/pglite/cvs/src/backend/access/gisr/gistget.c,v 1.9.1 1996/11/21 01:00:00 vadim Exp
*
*-------------------------------------------------------------------------
*/
@ -67,7 +67,6 @@ gistfirst(IndexScanDesc s, ScanDirection dir)
GISTSTACK *stk;
BlockNumber blk;
IndexTuple it;
ItemPointer ip;
b = ReadBuffer(s->relation, GISTP_ROOT);
p = BufferGetPage(b);
@ -107,13 +106,10 @@ gistfirst(IndexScanDesc s, ScanDirection dir)
ItemPointerSet(&(s->currentItemData), BufferGetBlockNumber(b), n);
it = (IndexTuple) PageGetItem(p, PageGetItemId(p, n));
ip = (ItemPointer) palloc(sizeof(ItemPointerData));
memmove((char *) ip, (char *) &(it->t_tid),
sizeof(ItemPointerData));
res = FormRetrieveIndexResult(&(s->currentItemData), &(it->t_tid));
ReleaseBuffer(b);
res = FormRetrieveIndexResult(&(s->currentItemData), ip);
return (res);
} else {
stk = (GISTSTACK *) palloc(sizeof(GISTSTACK));
@ -146,7 +142,6 @@ gistnext(IndexScanDesc s, ScanDirection dir)
GISTSTACK *stk;
BlockNumber blk;
IndexTuple it;
ItemPointer ip;
blk = ItemPointerGetBlockNumber(&(s->currentItemData));
n = ItemPointerGetOffsetNumber(&(s->currentItemData));
@ -192,13 +187,10 @@ gistnext(IndexScanDesc s, ScanDirection dir)
ItemPointerSet(&(s->currentItemData), BufferGetBlockNumber(b), n);
it = (IndexTuple) PageGetItem(p, PageGetItemId(p, n));
ip = (ItemPointer) palloc(sizeof(ItemPointerData));
memmove((char *) ip, (char *) &(it->t_tid),
sizeof(ItemPointerData));
res = FormRetrieveIndexResult(&(s->currentItemData), &(it->t_tid));
ReleaseBuffer(b);
res = FormRetrieveIndexResult(&(s->currentItemData), ip);
return (res);
} else {
stk = (GISTSTACK *) palloc(sizeof(GISTSTACK));
@ -340,6 +332,8 @@ gistscancache(IndexScanDesc s, ScanDirection dir)
res = FormRetrieveIndexResult(&(s->currentItemData), ip);
else
res = (RetrieveIndexResult) NULL;
pfree (ip);
return (res);
}