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This commit removes the restriction that would not apply filters to the dumps used for comparison in the TAP test of pg_upgrade when using the same base version for the old and new nodes. The previous logic would fail on Windows if loading a dump while using the same set of binaries for the old and new nodes, as the library dependencies updated in the old dump would append CRLFs to the dump file as it is treated as a text file. The dump filtering logic replaces all CRLFs (\r\n) by LFs (\n), which is able to prevent this issue. When the old and new versions of the binaries are the same, AdjustUpgrade removes all blank lines, removes version-based comments generated by pg_dump and replaces CRLFs by LFs. Reported-by: Alexander Lakhin Discussion: https://postgr.es/m/60d434b9-53d9-9ea1-819b-efebdcf44e41@gmail.com Backpatch-through: 15
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/.