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Commit8398c83

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Handle empty result set in libpqrcv_exec
Always return tupleslot and tupledesc from libpqrcv_exec. This avoidsrequiring callers to handle that separately.Author: Petr Jelinek <petr.jelinek@2ndquadrant.com>Reported-by: Michael Banck <michael.banck@credativ.de>
1 parent7ac955b commit8398c83

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‎src/backend/replication/libpqwalreceiver/libpqwalreceiver.c

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -803,10 +803,6 @@ libpqrcv_processTuples(PGresult *pgres, WalRcvExecResult *walres,
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MemoryContextrowcontext;
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MemoryContextoldcontext;
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806-
/* No point in doing anything here if there were no tuples returned. */
807-
if (PQntuples(pgres)==0)
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return;
809-
810806
/* Make sure we got expected number of fields. */
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if (nfields!=nRetTypes)
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ereport(ERROR,
@@ -824,6 +820,10 @@ libpqrcv_processTuples(PGresult *pgres, WalRcvExecResult *walres,
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PQfname(pgres,coln),retTypes[coln],-1,0);
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attinmeta=TupleDescGetAttInMetadata(walres->tupledesc);
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823+
/* No point in doing more here if there were no tuples returned. */
824+
if (PQntuples(pgres)==0)
825+
return;
826+
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/* Create temporary context for local allocations. */
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rowcontext=AllocSetContextCreate(CurrentMemoryContext,
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"libpqrcv query result context",

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