From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
---|---|
To: | Richard Poole <rp(at)guests(dot)deus(dot)net> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: another plperl bug |
Date: | 2004-11-23 19:47:25 |
Message-ID: | 41A393CD.7080403@dunslane.net |
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Lists: | pgsql-hackers pgsql-patches |
Richard Poole wrote:
>
>
>Indeed. It would be Perlish to have some magic so that when you called
>one PL/Perl function from another you could return an array ref from
>the inner one and have it Do What You Mean in the outer one, too.
>
>
>
>
>
There is no way to have one plperl function call another directly - they
are anonymous and a reference to them is not stored anywhere accessible
inside the perl interpreter. The only place the reference is stored is
in a table on the C side of the plperl glue code.
This is an architectural limitation that is not easily overcome.
Back to the original suggestion - I would like to have a lot more magic
that maps between perl hashrefs and postgres composites, and between
perl arrayrefs and postgres arrays. A plperl programmer should ideally
never have to construct or deconstruct the text representation of an
array or a composite. That will have to be looked at after this release
- we only just hit the feature freeze cutoff with what we have now,
which is why a few warts are coming to light.
cheers
andrew
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