Re: Improving avg performance for numeric
От | Kevin Grittner |
---|---|
Тема | Re: Improving avg performance for numeric |
Дата | |
Msg-id | 1363707490.38208.YahooMailNeo@web162906.mail.bf1.yahoo.com обсуждение исходный текст |
Ответ на | Re: Improving avg performance for numeric (Hadi Moshayedi <hadi@moshayedi.net>) |
Ответы |
Re: Improving avg performance for numeric
Re: Improving avg performance for numeric |
Список | pgsql-hackers |
Hadi Moshayedi <hadi@moshayedi.net> wrote: > I updated the patch by taking ideas from your patch, and unifying > the transition struct and update function for different > aggregates. The speed of avg improved even more. It now has 60% > better performance than the current committed version. Outstanding! > I also noticed that this patch makes matview test fail. It seems > that it just changes the ordering of rows for queries like > "SELECT * FROM tv;". Does this seem like a bug in my patch, or > should we add "ORDER BY" clauses to this test to make it more > deterministic? I added some ORDER BY clauses. That is probably a good thing anyway for purposes of code coverage. Does that fix it for you? -- Kevin Grittner EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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