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Re: testing plpython3u on 9.0beta2

Peter Eisentraut <peter_e@gmx.net>

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From: Peter Eisentraut <peter_e@gmx.net>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-hackers@postgresql.org, Tom Lane <tgl@sss.pgh.pa.us>, Robert Haas <robertmhaas@gmail.com>, Chris <rfusca@gmail.com>
Date: 2010-06-29T00:19:28Z
Lists: pgsql-hackers 
On fre, 2010-06-25 at 18:57 -0400, Peter Eisentraut wrote:
> On fre, 2010-06-25 at 23:44 +0200, Andres Freund wrote:
> > Has anybody actually researched if it is safe to run python2 and
> > python3 in the same address space?
> 
> You can't run plpython2 and plpython3 in the same session, because the
> libraries are loaded with dlopen(RTLD_GLOBAL) (with RTLD_LOCAL it would
> apparently work).  But you can use them in different sessions on the
> same database, for example.

By the way, I thought there had been some discussion about this in the
past, but I couldn't find it ...

Why are we using RTLD_GLOBAL?