ffc9ddaea3
There is a non-trivial amount of code that handles ZLIB compression in pg_receivewal, from basics like the format name, the calculation of the start streaming position and of course the compression itself, but there was no automated coverage for it. This commit introduces a set of conditional tests (if the build supports ZLIB) to cover the creation of ZLIB-compressed WAL segments, the handling of the partial, compressed, WAL segments and the compression operation in itself. Note that there is an extra phase checking the validity of the generated files by using directly a gzip command, passed down by the Makefile of pg_receivewal. This part is skipped if the command cannot be found, something likely going to happen on Windows with MSVC except if one sets the variable GZIP_PROGRAM in the environment of the test. This set of tests will become handy for upcoming patches that add more options for the compression methods used by pg_receivewal, like LZ4, to make sure that no existing facilities are broken. Author: Georgios Kokolatos Reviewed-by: Gilles Darold, Michael Paquier Discussion: https://postgr.es/m/07BK3Mk5aEOsTwGaY77qBVyf9GjoEzn8TMgHLyPGfEFPIpTEmoQuP2P4c7teesjSg-LPeUafsp1flnPeQYINMSMB_UpggJDoduB5EDYBqaQ=@protonmail.com |
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| README.git | ||
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README
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/.