Re: PoC: using sampling to estimate joins / complex conditions - Mailing list pgsql-hackers

From Andres Freund
Subject Re: PoC: using sampling to estimate joins / complex conditions
Date
Msg-id 20220104235812.xphxnk3uxpmauan6@alap3.anarazel.de
Whole thread Raw
In response to PoC: using sampling to estimate joins / complex conditions  (Tomas Vondra <tomas.vondra@enterprisedb.com>)
Responses Re: PoC: using sampling to estimate joins / complex conditions
List pgsql-hackers
Hi,

On 2021-06-27 19:55:24 +0200, Tomas Vondra wrote:
> estimating joins is one of the significant gaps related to extended
> statistics, and I've been regularly asked about what we might do about
> that. This is an early experimental patch that I think might help us
> with improving this, possible even in PG15.

The tests in this patch fail:
https://cirrus-ci.com/task/5304621299138560
https://api.cirrus-ci.com/v1/artifact/task/5304621299138560/regress_diffs/src/test/regress/regression.diffs

Looks like the regression test output hasn't been updated?

Greetings,

Andres Freund



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