6f7c0ea32f
Unlike PL/Tcl, PL/Perl at least made an attempt to clean up after itself when a function gets redefined. But it was still using TopMemoryContext for the fn_mcxt of argument/result I/O functions, resulting in the potential for memory leaks depending on what those functions did, and the retail alloc/free logic was pretty bulky as well. Fix things to use a per-function memory context like the other PLs now do. Tweak a couple of places where things were being done in a not-very-safe order (on the principle that a memory leak is better than leaving global state inconsistent after an error). Also make some minor cosmetic adjustments, mostly in field names, to make the code look similar to the way PL/Tcl does now wherever it's essentially the same logic. Michael Paquier and Tom Lane Discussion: <CAB7nPqSOyAsHC6jL24J1B+oK3p=yyNoFU0Vs_B6fd2kdd5g5WQ@mail.gmail.com>
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/.