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Re: BUG #1552: massive performance hit between 7.4 and 8.0.1

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: Keith Browne <tuxedo(at)deepsky(dot)com>, pgsql-bugs(at)postgresql(dot)org,"Brian O'Reilly" <fade(at)deepsky(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: BUG #1552: massive performance hit between 7.4 and 8.0.1
Date: 2005-03-25 14:41:09
Message-ID: 23228.1111761669@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-bugspgsql-performance
Simon Riggs <simon(at)2ndquadrant(dot)com> writes:
> I think we should spawn a TODO item from this:
> * Coerce FK lookups to always use an available index

No, we aren't doing that.

The correct TODO item is "Replan cached plans when table size has
changed a lot" which of course depends on having a framework to do
replanning at all.  I intend to take a look at that once Neil has
created such a framework ...

			regards, tom lane

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