Tom Lane 07a601eeda Avoid crashing in GetOldestSnapshot() if there are no known snapshots. ...

The sole caller expects NULL to be returned in such a case, so make
it so and document it.

Per reports from Andreas Seltenreich and Regina Obe.  This doesn't
really fix their problem, as now their RETURNING queries will say
"ERROR: no known snapshots", but in any case this function should
not dump core in a reasonably-foreseeable situation.

Report: <87vazemeda.fsf@credativ.de>
Report: <20160807051854.1427.32414@wrigleys.postgresql.org>

2016-08-07 14:36:02 -04:00

..

combocid.c

Update copyright for 2016

2016-01-02 13:33:40 -05:00

Makefile

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

snapmgr.c

Avoid crashing in GetOldestSnapshot() if there are no known snapshots.

2016-08-07 14:36:02 -04:00

tqual.c

Prevent "snapshot too old" from trying to return pruned TOAST tuples.

2016-08-03 16:50:01 -04:00