Re: Query slow as Function
От
Andrew Dunstan
Тема
Re: Query slow as Function
Дата
Msg-id
4F3FD4AE.30908@dunslane.net
Ответ на
Re: Query slow as Function (Tom Lane)
Список
Дерево обсуждения
Query slow as Function Steve Horn <steve@stevehorn.cc>
Re: Query slow as Function Andreas Kretschmer <akretschmer@spamfence.net>
Re: Query slow as Function Tom Lane <tgl@sss.pgh.pa.us>
Re: Query slow as Function Andreas Kretschmer <akretschmer@spamfence.net>
Re: Query slow as Function Andrew Dunstan <andrew@dunslane.net>
Re: Query slow as Function Tom Lane <tgl@sss.pgh.pa.us>
Re: Query slow as Function Steve Horn <steve@stevehorn.cc>
On 02/18/2012 11:37 AM, Tom Lane wrote: > Andreas Kretschmer writes: >> You can check the plan with the auto_explain - Extension, and you can >> force the planner to create a plan based on the actual input-value by >> using dynamic SQL (EXECUTE 'your query string' inside the function) > Steve *is* using EXECUTE, so that doesn't seem to be the answer. I'm > wondering about datatype mismatches myself --- the function form is > forcing the parameter to be char(9), which is not a constraint imposed > in the written-out query. There are lots of other possibilities > though. It would be hard to say much without a self-contained example > to try. > > He's using EXECUTE ... USING. Does that plan with the used parameter? cheers andrew
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