9897957805
On HEAD, the template code for custom fixed-sized pgstats is in the test module test_custom_stats. On REL_18_STABLE, this code lives in the test module injection_points. Both cases were underestimating the size of the shared memory area required for the storage of the stats data, using a single entry rather than the whole area. This underestimation meant that there was no memory allocated for the LWLock required for the stats, and even more. This problem would be also misleading for extension developers looking at this code. This issue has been noticed while digging into a different bug reported by Heikki Linnakangas, showing that the underestimation was causing failures in the TAP tests of the test modules for 32-bit builds. The other issue reported, related to the memory allocation of custom fixed-sized pgstats, will be fixed in a follow-up commit. Discussion: https://postgr.es/m/adMk_lWbnz3HDOA8@paquier.xyz Backpatch-through: 18 |
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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/.