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b7001c6b6a
Like plperl before f47004add, plpython wasn't being sufficiently careful about checking that list-of-list structures represent rectangular arrays, so that it would accept some cases in which different parts of the "array" are nested to different depths. This was exacerbated by Python's weak distinction between sequences and lists, so that in some cases strings could get treated as though they are lists (and burst into individual characters) even though a different ordering of the upper-level list would give a different result. Some of this behavior was unreachable (without risking a crash) before 81eaaf65e. It seems like a good idea to clean it all up in the same releases, rather than shipping a non-crashing but nonetheless visibly buggy behavior in the name of minimal change. Hence, back-patch. Per bug #17912 and further testing by Alexander Lakhin. Discussion: https://postgr.es/m/17912-82ceed78731d9cdc@postgresql.org
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: https://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 https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.