pgsql: Factor out functions responsible for caching I/O routines

Factor out functions responsible for caching I/O routines

This makes PLy_procedure_create a bit more manageable.

Jan Urbański

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=740e54ca84c437fd67524f97a3ea9ddea752e208

Modified Files
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src/pl/plpython/plpython.c | 245 ++++++++++++++++++++++++--------------------
1 files changed, 132 insertions(+), 113 deletions(-)