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Tweak palloc/repalloc to allow zero bytes to be requested, as per recent
proposal. Eliminate several dozen now-unnecessary hacks to avoid palloc(0). (It's likely there are more that I didn't find.)
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/tcop/pquery.c,v 1.79 2004/05/26 18:54:08 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/tcop/pquery.c,v 1.80 2004/06/05 19:48:08 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -347,10 +347,9 @@ PortalSetResultFormat(Portal portal, int nFormats, int16 *formats)
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if (portal->tupDesc == NULL)
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return;
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natts = portal->tupDesc->natts;
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/* +1 avoids palloc(0) if no columns */
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portal->formats = (int16 *)
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MemoryContextAlloc(PortalGetHeapMemory(portal),
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(natts + 1) * sizeof(int16));
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natts * sizeof(int16));
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if (nFormats > 1)
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{
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/* format specified for each column */
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