pgsql: Fix plpgsql to avoid reference to already-freed memory when

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Fix plpgsql to avoid reference to already-freed memory when
Date: 2007-04-19 16:33:32
Message-ID: 20070419163332.5E6B79FB917@postgresql.org
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Log Message:
-----------
Fix plpgsql to avoid reference to already-freed memory when returning a
pass-by-reference data type and the RETURN statement is within an EXCEPTION
block. Bug introduced by my fix of 2007-01-28 to use per-subtransaction
ExprContexts/EStates; since that wasn't back-patched into older branches,
only 8.2 and HEAD are affected. Per report from Gary Winslow.

Tags:
----
REL8_2_STABLE

Modified Files:
--------------
pgsql/src/pl/plpgsql/src:
pl_exec.c (r1.180.2.4 -> r1.180.2.5)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpgsql/src/pl_exec.c.diff?r1=1.180.2.4&r2=1.180.2.5)

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