| From: | David Steele <david(at)pgmasters(dot)net> |
|---|---|
| To: | Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Columns correlation and adaptive query optimization |
| Date: | 2020-03-25 13:00:39 |
| Message-ID: | 9468785f-dd4b-7cbc-3394-b9d790bd233f@pgmasters.net |
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| Lists: | pgsql-hackers |
On 3/25/20 6:57 AM, Konstantin Knizhnik wrote:
>
>
> On 24.03.2020 20:12, David Steele wrote:
>> On 12/24/19 3:15 AM, Konstantin Knizhnik wrote:
>>> New version of patch implicitly adding multicolumn statistic in
>>> auto_explain extension and using it in optimizer for more precise
>>> estimation of join selectivity.
>>> This patch fixes race condition while adding statistics and restricts
>>> generated statistic name to fit in 64 bytes (NameData).
>>
>> This patch no longer applies: https://commitfest.postgresql.org/27/2386/
>>
>> The CF entry has been updated to Waiting on Autho
>
> Rebased patch is attached.
The patch applies now but there are error on Windows and Linux:
https://ci.appveyor.com/project/postgresql-cfbot/postgresql/build/1.0.85481
https://travis-ci.org/postgresql-cfbot/postgresql/builds/666729979
Regards,
--
-David
david(at)pgmasters(dot)net
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