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For the three implementations that have caused problems so far: * GNU and BSD (libarchive) tar both understand --format=ustar * ustar doesn't support large UID/GID values, so set them to 0 to avoid a hard error from at least GNU tar * OpenBSD tar needs -F ustar, and it appears to warn but carry on with "nobody" if a UID is too large * -f /dev/null is a more portable way to throw away the output, since the default destination might be a tape device depending on build options that a distribution might change * Windows ships BSD tar but lacks /dev/null, so ask perl for its name Based on their manuals, the other two implementations the tests are likely to encounter in the wild don't seem to need any special handling: * Solaris/illumos tar uses ustar and replaces large UIDs with 60001 * AIX tar uses ustar (unless --format=pax) and truncates large UIDs Backpatch-through: 18 Co-authored-by: Thomas Munro <thomas.munro@gmail.com> Co-authored-by: Sami Imseih <samimseih@gmail.com> (large UIDs) Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> (earlier version) Reviewed-by: Nazir Bilal Yavuz <byavuz81@gmail.com> (OpenBSD) Reviewed-by: Andrew Dunstan <andrew@dunslane.net> (Windows) Discussion: https://postgr.es/m/3676229.1775170250%40sss.pgh.pa.us Discussion: https://postgr.es/m/CAA5RZ0tt89MgNi4-0F4onH%2B-TFSsysFjMM-tBc6aXbuQv5xBXw%40mail.gmail.com
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/.