cd0be131ba
get_pg_version() is able to return a version number, that can be used for comparisons based on PG_VERSION_NUM. A macro is added to convert the result to a major version number, to work with PG_MAJORVERSION_NUM. It is possible to pass to the routine an optional argument, where the contents retrieved from PG_VERSION are saved. This requirement matters for some of the frontend code (one example: pg_upgrade wants that for tablespace paths with a version number strictly older than v10). This will be used by a set of follow-up patches, to be consumed in various frontend tools that duplicate a logic similar to do what this new routine does, like: - pg_resetwal - pg_combinebackup - pg_createsubscriber - pg_upgrade This routine supports both the post-v10 version number and the older flavor (aka 9.6), as required at least by pg_upgrade. Author: Michael Paquier <michael@paquier.xyz> Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com> Discussion: https://postgr.es/m/aOiirvWJzwdVCXph@paquier.xyz |
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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/.