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Tweak palloc/repalloc to allow zero bytes to be requested, as per recent

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proposal.  Eliminate several dozen now-unnecessary hacks to avoid palloc(0).
(It's likely there are more that I didn't find.)
This commit is contained in:
Tom Lane
2004-06-05 19:48:09 +00:00
parent 24a1e20f14
commit c3a153afed
19 changed files with 113 additions and 113 deletions
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5
src/backend/commands/vacuum.c
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@@ -13,7 +13,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.279 2004/05/31 19:24:05 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/vacuum.c,v 1.280 2004/06/05 19:48:07 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -2883,9 +2883,8 @@ vac_update_fsm(Relation onerel, VacPageList fraged_pages,
*/
threshold = GetAvgFSMRequestSize(&onerel->rd_node);
/* +1 to avoid palloc(0) */
pageSpaces = (PageFreeSpaceInfo *)
palloc((nPages + 1) * sizeof(PageFreeSpaceInfo));
palloc(nPages * sizeof(PageFreeSpaceInfo));
outPages = 0;
for (i = 0; i < nPages; i++)