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Re: CREATE AGGREGATE disallows STYPE = internal - Mailing list pgsql-hackers

From Tom Lane
Subject Re: CREATE AGGREGATE disallows STYPE = internal
Date
Msg-id 25790.1226675374@sss.pgh.pa.us
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In response to Re: CREATE AGGREGATE disallows STYPE = internal  (Teodor Sigaev <teodor@sigaev.ru>)
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Teodor Sigaev <teodor@sigaev.ru> writes:
> Does that mean that it's possible to use as STYPE pointer to complex C-structure 
> with internal pointers?

That's exactly what array_agg is doing.  You have to be careful about
which context you keep the data in ...
        regards, tom lane

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