a977e419ee
This provides a single entry point to access some information about the state of MultiXacts, able to return some data about multixacts offsets and counts. Originally this function was only able to return some information about the number of multixacts and multixact members, extended here to provide some data about the oldest multixact ID in use and the oldest offset, if known. This change has been proposed in a patch that aims at providing more monitoring capabilities for multixacts, and it is useful on its own. GetMultiXactInfo() is added to multixact.h, becoming available for out-of-core code. Extracted from a larger patch by the same author. Author: Naga Appani <nagnrik@gmail.com> Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com> Reviewed-by: Michael Paquier <michael@paquier.xyz> Discussion: https://postgr.es/m/CA+QeY+AAsYK6WvBW4qYzHz4bahHycDAY_q5ECmHkEV_eB9ckzg@mail.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/.