Log Message:
-----------
Fix qual_is_pushdown_safe to not try to push down quals involving a whole-row
Var referencing the subselect output. While this case could possibly be made
to work, it seems not worth expending effort on. Per report from Magnus
Naeslund(f).
Modified Files:
--------------
pgsql/src/backend/optimizer/path:
allpaths.c (r1.142 -> r1.143)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/path/allpaths.c.diff?r1=1.142&r2=1.143)
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