Pl/Python runtime overhead - Mailing list pgsql-general

From Seref Arikan
Subject Pl/Python runtime overhead
Date
Msg-id CA+4Thdqnyh5at+VoEVtZ-jaLf1RO-pA=xHtv9x40Lw3c2gs7eA@mail.gmail.com
Whole thread Raw
Responses Re: Pl/Python runtime overhead  (Sergey Konoplev <gray.ru@gmail.com>)
Re: Pl/Python runtime overhead  (Peter Eisentraut <peter_e@gmx.net>)
List pgsql-general
Greetings, 
Somehow I have failed to find the appropriate keywords for successful results for my question. 

When a pl/python based function is invoked, does it keep a python runtime running across calls to same function? That is, if I use connection pooling, can I save on the python runtime initialization and loading costs? 

Are there any documents/books etc you'd recommend to get a good understanding of extending postgres with languages like python? I'd really like to get a good grip of the architecture of this type of extension, and possibly attempt to introduce a language of my own choosing. The docs I've seen so far are mostly too specific, making it a bit for hard for me to see the forest from the trees.

Regards
Seref

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