Re: multivariate statistics / patch v7

Josh Berkus <josh@agliodbs.com>

From: Josh Berkus <josh@agliodbs.com>

To: Tomas Vondra <tomas.vondra@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>

Cc: Jeff Janes <jeff.janes@gmail.com>, Stephen Frost <sfrost@snowman.net>, Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>

Date: 2015-09-24T16:43:19Z

Lists: pgsql-hackers

Tomas,

> attached is v7 of the multivariate stats patch. The main improvement is
> major refactoring of the clausesel.c portion - splitting the awfully
> long spaghetti-style functions into smaller pieces, making it much more
> understandable etc.

So presumably v7 handles varlena attributes as well, yes?   I have a
destruction test case for correlated column stats, so I'd like to test
your patch on it.

-- 
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

Commits

Collect and use multi-column dependency stats
- 2686ee1b7ccf 10.0 landed
Implement SortSupport for macaddr data type
- f90d23d0c518 10.0 cited
Implement multivariate n-distinct coefficients
- 7b504eb282ca 10.0 landed
Generate fmgr prototypes automatically
- 352a24a1f9d6 10.0 cited