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Commit 804b6b6db4dcfc590a468e7be390738f9f7755fb added the build of a range table in copy.c to initialize the EState es_range_table since it can be needed in error paths. Unfortunately, that commit didn't appreciate that some code paths might end up not initializing the rte which is used to build the range table. Fix that and clean up a couple others things along the way- build it only once and don't explicitly set it on the !is_from path as it doesn't make any sense there (cstate is palloc0'd, so this isn't an issue from an initializing standpoint either). The prior commit went back to 9.0, but this only goes back to 9.1 as prior to that the range table build happens immediately after building the RTE and therefore doesn't suffer from this issue. Pointed out by Robert.
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/.