pgsql: Defend against null input in analyze_requires_snapshot(), per

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Defend against null input in analyze_requires_snapshot(), per
Date: 2009-01-30 16:59:16
Message-ID: 20090130165916.E51AD7559ED@cvs.postgresql.org
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Log Message:
-----------
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.

Tags:
----
REL8_2_STABLE

Modified Files:
--------------
pgsql/src/backend/parser:
analyze.c (r1.353.2.2 -> r1.353.2.3)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/analyze.c?r1=1.353.2.2&r2=1.353.2.3)

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