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Re: Insertion to temp table deteriorating over time - Mailing list pgsql-performance

From Tom Lane
Subject Re: Insertion to temp table deteriorating over time
Date
Msg-id 19298.1166464855@sss.pgh.pa.us
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In response to Re: Insertion to temp table deteriorating over time  ("Steven Flatt" <steven.flatt@gmail.com>)
Responses Re: Insertion to temp table deteriorating over time  ("Steven Flatt" <steven.flatt@gmail.com>)
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"Steven Flatt" <steven.flatt@gmail.com> writes:
> I can fix this problem by using CREATE TEMP TABLE ... LIKE instead of CREATE
> TEMP TABLE ... AS.

That seems ... um ... bizarre.  Now are you able to put together a
self-contained test case?  Seems like we could have two independent bugs
here: first, why (and how) is the temp table different, and second how
does that result in the observed performance problem.

            regards, tom lane

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