pgsql: Handle empty result set in libpqrcv_exec

Handle empty result set in libpqrcv_exec

Always return tupleslot and tupledesc from libpqrcv_exec.  This avoids
requiring callers to handle that separately.

Author: Petr Jelinek <petr.jelinek@2ndquadrant.com>
Reported-by: Michael Banck <michael.banck@credativ.de>

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/8398c836892fde2b99139cc4711e57b7e59582b6

Modified Files
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src/backend/replication/libpqwalreceiver/libpqwalreceiver.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)