Horton
Menu

Re: join removal

Tom Lane <tgl@sss.pgh.pa.us>

View thread
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Haas <robertmhaas@gmail.com>, Greg Stark <stark@mit.edu>, "<pgsql-hackers@postgresql.org>" <pgsql-hackers@postgresql.org>
Date: 2010-03-28T05:15:32Z
Lists: pgsql-hackers 
I wrote:
> [ crude patch ]

Oh, btw, if you try to run the regression test additions in that patch
against CVS HEAD, you'll find out that HEAD actually fails to optimize
the two-levels-of-removable-joins case.  Seems like another reason to
press ahead with making the change.

			regards, tom lane