Re: An Idea for planner hints

From: Joshua Reich <josh(at)root(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: An Idea for planner hints
Date: 2006-08-09 19:33:21
Message-ID: 44DA3881.4020201@root.net
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> (Not sure how we'd implement that, seeing that ANALYZE currently works
> on one table at a time, but it's probably doable --- and it'd fix the
> fundamental problem for correlation statistics, which is how not to try
> to collect stats about an exponential number of combinations ...)

An exponential number of combinations? Is it possible to use FK
relationships to determine what tables & columns are likely to be used
in future joins.

Josh

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