pg_waldump can now accept the path to a tar archive (optionally compressed with gzip, lz4, or zstd) containing WAL files and decode them. This was added primarily for pg_verifybackup, which previously had to skip WAL parsing for tar-format backups. The implementation uses the existing archive streamer infrastructure with a hash table to track WAL segments read from the archive. If WAL files within the archive are not in sequential order, out-of-order segments are written to a temporary directory (created via mkdtemp under $TMPDIR or the archive's directory) and read back when needed. An atexit callback ensures the temporary directory is cleaned up. The --follow option is not supported when reading from a tar archive. Author: Amul Sul <sulamul@gmail.com> Reviewed-by: Robert Haas <robertmhaas@gmail.com> Reviewed-by: Jakub Wartak <jakub.wartak@enterprisedb.com> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Reviewed-by: Euler Taveira <euler@eulerto.com> Reviewed-by: Andrew Dunstan <andrew@dunslane.net> Reviewed-by: Zsolt Parragi <zsolt.parragi@percona.com> discussion: https://postgr.es/m/CAAJ_b94bqdWN3h2J-PzzzQ2Npbwct5ZQHggn_QoYGhC2rn-=WQ@mail.gmail.com |
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| configure | ||
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| COPYRIGHT | ||
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| HISTORY | ||
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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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.