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1d2f9de38d
It turns out that those PyErr_Clear() calls I removed from plpy_elog.c in 7e3bb080387f4143 et al were not quite as random as they appeared: they mask a Python 2.3.x bug. (Specifically, it turns out that PyType_Ready() can fail if the error indicator is set on entry, and PLy_traceback's fetch of frame.f_code may be the first operation in a session that requires the "frame" type to be readied. Ick.) Put back the clear call, but in a more centralized place closer to what it's protecting, and this time with a comment warning what it's really for. Per buildfarm member prairiedog. Although prairiedog was only failing on HEAD, it seems clearly possible for this to occur in older branches as well, so back-patch to 9.2 the same as the previous patch.
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.