| From: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
|---|---|
| To: | tomas(dot)vondra(at)2ndquadrant(dot)com |
| Cc: | jeff(dot)janes(at)gmail(dot)com, alvherre(at)2ndquadrant(dot)com, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: multivariate statistics v14 |
| Date: | 2016-03-16 02:58:24 |
| Message-ID: | 20160316.115824.1975980662850012690.t-ishii@sraoss.co.jp |
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| Thread: | |
| Lists: | pgsql-hackers |
I apology if it's already discussed. I am new to this patch.
> Attached is v15 of the patch series, fixing this and also doing quite a
> few additional improvements:
>
> * added some basic examples into the SGML documentation
>
> * addressing the objectaddress omissions, as pointed out by Alvaro
>
> * support for ALTER STATISTICS ... OWNER TO / RENAME / SET SCHEMA
>
> * significant refactoring of MCV and histogram code, particularly
> serialization, deserialization and building
>
> * reworking the functional dependencies to support more complex
> dependencies, with multiple columns as 'conditions'
>
> * the reduction using functional dependencies is also significantly
> simplified (I decided to get rid of computing the transitive closure
> for now - it got too complex after the multi-condition dependencies,
> so I'll leave that for the future
Do you have any other missing parts in this work? I am asking because
I wonder if you want to push this into 9.6 or rather 9.7.
Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp
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