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Re: BUG #16223: Performance regression between 11.6 and 12.1 in an SQL query with a recursive CTE based on function - Mailing list pgsql-bugs

From Tom Lane
Subject Re: BUG #16223: Performance regression between 11.6 and 12.1 in an SQL query with a recursive CTE based on function
Date
Msg-id 12932.1580311131@sss.pgh.pa.us
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In response to Re: BUG #16223: Performance regression between 11.6 and 12.1 in anSQL query with a recursive CTE based on function  (Christian Schwaderer <schwaderer@ivocotec.de>)
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Christian Schwaderer <schwaderer@ivocotec.de> writes:
> On 27.01.20 16:31, Tom Lane wrote:
>> Another thing that could be relevant is JIT, which is on by default
>> in v12 (if enabled in configuration), and which is still suffering
>> a lot of teething pains performance-wise.  I'd check if that's
>> on and try disabling it if so.

> Anyway: Here are the details of versions and pg_config

I see JIT support (--with-llvm) in those configurations, so
did you heed the above advice?

            regards, tom lane

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