9a8dd2c5a6
The callback pgstat_backend_have_pending_cb() is used as a way for pg_stat_report() to detect if there is any pending data for backend statistics. It did not include a check based on pgstat_tracks_backend_bktype(), that discards processes whose backend types do not support backend statistics. The logic is not a problem on HEAD, as processes that do not support backend statistics cannot touch PendingBackendStats, so the callback would always report that there is no pending data in this case. However, we would run into trouble once backend statistics include portions of pending stats that are not always zeroed, like pgWalUsage. There is no reason for pgstat_backend_have_pending_cb() to not check for pgstat_tracks_backend_bktype(), anyway, and this pattern is safer in the long run, so let's update the code to do so. While on it, this commit adds a proper initialization to PendingBackendStats. Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Co-authored-by: Michael Paquier <michael@paquier.xyz> Discussion: https://postgr.es/m/Z8l6EMM4ImVoWRkg@ip-10-97-1-34.eu-west-3.compute.internal |
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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/.