Fwd: Statistics and selectivity estimation for ranges

From: Matthias <nitrogenycs(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Fwd: Statistics and selectivity estimation for ranges
Date: 2012-08-06 16:08:41
Message-ID: CACECd8jrJ69vfPh-s0D3ywDyrw4_qNSJ9GEC3B81m2BGW7GQXA@mail.gmail.com
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Having statistics on ranges was really missing! The planner was doing
some really, really bad choices on bigger tables regarding seq/random
scans, nested loop/other joins etc.

Is there any chance this makes it into 9.2 final? It would really
round-off the introduction of range types and maybe avoid problems
like "the new range types are slow" (just due to the bad row
estimates).

Thanks for implementing this feature,
-Matthias

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