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Small performance improvement in comparetup_heap.

This commit is contained in:
Tom Lane 2000-03-01 17:14:09 +00:00
parent 8cb8da38b8
commit 73dd716285
1 changed files with 5 additions and 9 deletions
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14
src/backend/utils/sort/tuplesort.c
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@ -78,7 +78,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/sort/tuplesort.c,v 1.6 2000/02/18 06:32:30 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/sort/tuplesort.c,v 1.7 2000/03/01 17:14:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1632,20 +1632,16 @@ comparetup_heap(Tuplesortstate *state, const void *a, const void *b)
for (nkey = 0; nkey < state->nKeys; nkey++)
{
ScanKey scanKey = state->scanKeys + nkey;
AttrNumber attno = scanKey->sk_attno;
Datum lattr,
rattr;
bool isnull1,
isnull2;
int result;
lattr = heap_getattr(ltup,
scanKey->sk_attno,
tupDesc,
&isnull1);
rattr = heap_getattr(rtup,
scanKey->sk_attno,
tupDesc,
&isnull2);
lattr = heap_getattr(ltup, attno, tupDesc, &isnull1);
rattr = heap_getattr(rtup, attno, tupDesc, &isnull2);
if (isnull1)
{
if (!isnull2)