Log Message:
-----------
Fix performance issue in exprTypmod(): for a COALESCE expression, it
recursed twice on its first argument, leading to exponential time spent
on a deep nest of COALESCEs ... such as a deeply nested FULL JOIN would
produce. Per report from Matt Carter.
Tags:
----
REL7_4_STABLE
Modified Files:
--------------
pgsql/src/backend/parser:
parse_expr.c (r1.163.2.3 -> r1.163.2.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_expr.c.diff?r1=1.163.2.3&r2=1.163.2.4)