Re: Problems with "pg.dropped" column after upgrade 9.5 to 9.6

On Wed, Nov 2, 2016 at 3:54 PM, Michael Paquier
<michael.paquier@gmail.com> wrote:
> I am just digging into it... An interesting part is that removing the
> WHERE clause makes the regression go away.

And one bisect later:
commit: 3fc6e2d7f5b652b417fa6937c34de2438d60fa9f
author: Tom Lane <tgl@sss.pgh.pa.us>
date: Mon, 7 Mar 2016 15:58:22 -0500
Make the upper part of the planner work by generating and comparing Paths

In short, that's going to be fun to create a patch...
--
Michael