Log Message:
-----------
Fix plancache's invalidation callback to do the right thing for a SI
reset event, namely invalidate everything. This oversight probably
explains the rare failures that some buildfarm machines have been
showing for the plancache regression test.
Modified Files:
--------------
pgsql/src/backend/utils/cache:
plancache.c (r1.4 -> r1.5)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/cache/plancache.c.diff?r1=1.4&r2=1.5)