Log Message:
-----------
Fix a tiny memory leak (one List header) in RelationCacheInvalidate().
This is utterly insignificant in normal operation, but it becomes a
problem during cache inval stress testing. The original coding in fact
had no leak --- the 8.0 List rewrite created the issue. I wonder whether
list_concat should pfree the discarded header?
Modified Files:
--------------
pgsql/src/backend/utils/cache:
relcache.c (r1.235 -> r1.236)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/cache/relcache.c.diff?r1=1.235&r2=1.236)