Hello,
I found that qual_is_pushdown_safe() has an argument "subquery"
that is not used in the function. This argument has not been
referred to since the commit 964c0d0f80e485dd3a4073e073ddfd9bfdda90b2.
I think we can remove this if there is no special reason.
Regards,
Yugo Nagata
--
Yugo NAGATA <nagata@sraoss.co.jp>