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f0ad417161
It's possible to define BRIN indexes on functions that require a snapshot to run, but the autosummarization feature introduced by commit 7526e10224f0 fails to provide one. This causes autovacuum to leave a BRIN placeholder tuple behind after a failed work-item execution, making such indexes less efficient. Repair by obtaining a snapshot prior to running the task, and add a test to verify this behavior. Author: Álvaro Herrera <alvherre@kurilemu.de> Reported-by: Giovanni Fabris <giovanni.fabris@icon.it> Reported-by: Arthur Nascimento <tureba@gmail.com> Backpatch-through: 13 Discussion: https://postgr.es/m/202511031106.h4fwyuyui6fz@alvherre.pgsql
PostgreSQL tests ================ This directory contains a variety of test infrastructure as well as some of the tests in PostgreSQL. Not all tests are here -- in particular, there are more in individual contrib/ modules and in src/bin. Not all these tests get run by "make check". Check src/test/Makefile to see which tests get run automatically. authentication/ Tests for authentication (but see also below) examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level kerberos/ Tests for Kerberos/GSSAPI authentication and encryption ldap/ Tests for LDAP-based authentication locale/ Sanity checks for locale data, encodings, etc mb/ Tests for multibyte encoding (UTF-8) support modules/ Extensions used only or mainly for test purposes, generally not suitable for installing in production databases perl/ Infrastructure for Perl-based TAP tests recovery/ Test suite for recovery and replication regress/ PostgreSQL's main regression test suite, pg_regress ssl/ Tests to exercise and verify SSL certificate handling subscription/ Tests for logical replication