Re: PoC/WIP: Extended statistics on expressions
От | Tomas Vondra |
---|---|
Тема | Re: PoC/WIP: Extended statistics on expressions |
Дата | |
Msg-id | 4c98203c-8364-bb76-b502-d7b323ba55ba@enterprisedb.com обсуждение исходный текст |
Ответ на | Re: PoC/WIP: Extended statistics on expressions (Noah Misch <noah@leadboat.com>) |
Ответы |
Re: PoC/WIP: Extended statistics on expressions
Re: PoC/WIP: Extended statistics on expressions |
Список | pgsql-hackers |
On 6/6/21 7:37 AM, Noah Misch wrote: > On Sat, Mar 27, 2021 at 01:17:14AM +0100, Tomas Vondra wrote: >> OK, pushed after a bit more polishing and testing. > > This added a "transformed" field to CreateStatsStmt, but it didn't mention > that field in src/backend/nodes. Should those functions handle the field? > Yup, that's a mistake - it should do whatever CREATE INDEX is doing. Not sure if it can result in error/failure or just inefficiency (due to transforming the expressions repeatedly), but it should do whatever CREATE INDEX is doing. Thanks for noticing! Fixed by d57ecebd12. regards -- Tomas Vondra EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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