Re: WIP: multivariate statistics / proof of concept
Michael Paquier <michael.paquier@gmail.com>
From: Michael Paquier <michael.paquier@gmail.com>
To: Tomas Vondra <tv@fuzzy.cz>
Cc: PostgreSQL mailing lists <pgsql-hackers@postgresql.org>
Date: 2014-12-08T01:01:47Z
Lists: pgsql-hackers
On Sun, Nov 16, 2014 at 3:35 AM, Tomas Vondra <tv@fuzzy.cz> wrote: > Thanks for the link. I've been looking for a good dataset with such > data, and this one is by far the best one. > > The current version of the patch supports only data types passed by > value (i.e. no varlena types - text, ), which means it's impossible to > build multivariate stats on some of the interesting columns (state, > city, ...). > > I guess it's time to start working on removing this limitation. Tomas, what's your status on this patch? Are you planning to make it more complicated than it is? For now I have switched it to a "Needs Review" state because even your first version did not get advanced review (that's quite big btw). I guess that we should switch it to the next CF. Regards, -- Michael
Commits
-
Collect and use multi-column dependency stats
- 2686ee1b7ccf 10.0 landed
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Implement SortSupport for macaddr data type
- f90d23d0c518 10.0 cited
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Implement multivariate n-distinct coefficients
- 7b504eb282ca 10.0 landed
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Generate fmgr prototypes automatically
- 352a24a1f9d6 10.0 cited