Обсуждение: pgsql: Revert XactLockTableWait context setup in conditional multixact

Revert XactLockTableWait context setup in conditional multixact wait

There's no point in setting up a context error callback when doing
conditional lock acquisition, because we never actually wait and so the
able wouldn't be able to see it.

Backpatch to 9.4, where this was added.

Branch
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REL9_4_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/34356933f044d5e3fa02a30ef1fe859eca20d605

Modified Files
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src/backend/access/heap/heapam.c |   11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)