I believe they are created when either a function / program creates a temporary table.
On Wed, May 19, 2004 at 08:32:06AM -0400, Jerry Sievers wrote:
> Hello.
>
> I'm running postgres 7.4.1 and notice an accumulation of temp schemas
> named pg_temp_1, pg_temp_2... etc.
>
> These schemas are empty and I have manually removed them from time to
> time.
>
> What procedure is leaving these behind and is there a way for me to
> have them cleaned up automatically after use?
>
> Thanks.
>
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