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.
Modified Files:
--------------
pgsql/src/pl/plpgsql/src:
pl_exec.c (r1.194 -> r1.195)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpgsql/src/pl_exec.c.diff?r1=1.194&r2=1.195)