Log Message:
-----------
Add some documentation about PL/Python limitations
suggested by Steve White (bug #5272)
Modified Files:
--------------
pgsql/doc/src/sgml:
plpython.sgml (r1.47 -> r1.48)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/plpython.sgml?r1=1.47&r2=1.48)