On Wed, 28 Sep 2005 00:34:37 -0400, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> "Kevin Grittner" <kevin.grittner@wicourts.gov> writes:
> > Obviously, adding an outer join to a query which is already returning rows
> > should never reduce the number of rows returned.
>
> I think this is a case of overenthusiastic propagation of implied
> equalities. Do you know offhand if it fails in 8.0.* or earlier
> branches?
fails on 7.4.7 (rh9) and 8.0.0 (win) for me.
klint.
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