Defend against null input in analyze_requires_snapshot(), per report
authorTom Lane <tgl@sss.pgh.pa.us>
Fri, 30 Jan 2009 16:59:16 +0000 (16:59 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Fri, 30 Jan 2009 16:59:16 +0000 (16:59 +0000)
commite06e3d38103274388a05ee3bcbea584ff9cacb22
tree8ea74517cf872497533a594b402e2d804808b651
parentfbb70ccd6072604f76423e1c8be9e842231a1d50
Defend against null input in analyze_requires_snapshot(), per report
from Rushabh Lathia.

Back-patch of patch of 2009-01-08.  This is necessary in 8.3, as reported
by Bjorn Munch.  It's not currently necessary in 8.2, AFAICS, but seems
best to include it there too.
src/backend/parser/analyze.c