| 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: | 2016-03-22 10:41:01 |
| Message-ID: | 20160322.194101.1823396309134293700.t-ishii@sraoss.co.jp |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
>> Hum. So without 0006 or beyond, there's not much benefit for the
>> PostgreSQL users, and you are not too confident about 0006 or
>> beyond. Then I would think it is a little bit hard to justify in
>> putting 000[2-5] into 9.6. I really like this feature and would like
>> to see in PostgreSQL someday, but I'm not sure if we should put the
>> patches (0002-0005) into PostgreSQL now. Please let me know if there's
>> some reaons we should put the patches into PostgreSQL now.
>
> I don't think so. While being able to combine multiple statistics is
> certainly useful, I'm convinced that the initial patched add enough
Can you please elaborate a little bit more how combining multiple
statistics is useful?
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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