Array of composite types returned from python

I've endeavored to enable the return of arrays of composite types from code
written in PL/Python. It seems that this can be accomplished though a very
minor change to the code:

On line 401 in the file src/pl/plpython/plpy_typeio.c, remove the error
report "PL/Python functions cannot return type." and replace it with the
command

arg->func = PLyObject_ToComposite;

From all that I can see, this does exactly what I want. A python list of
tuples is converted to an array of composite types in SQL.

I ran the main and python regression suites for both python2 and python3
with assert enabled. The only discrepancies I got were ones that were due to
the output expecting an error. When I altered the .out files to the expected
behavior, it matched just fine.

Am I missing anything, (ie memory leak, undesirable behavior elsewhere)?

-Ed

Ed Behn / Staff Engineer / Airline and Network Services
Information Management Services
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