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Advancing a replication slot did not recompute the oldest xmin and LSN values across replication slots, preventing resource removal like segments not recycled at checkpoint time. The original commit that introduced the slot advancing in 9c7d06d never did the update of those oldest values, and b0afdca removed this code. This commit adds a TAP test to check segment recycling with advancing for physical slots, enforcing an extra segment switch before advancing to check if the segment gets correctly recycled after a checkpoint. Reported-by: Andres Freund Reviewed-by: Alexey Kondratov, Kyptaro Horiguchi Discussion: https://postgr.es/m/20200609171904.kpltxxvjzislidks@alap3.anarazel.de Backpatch-through: 11
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 examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level 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 thread/ A thread-safety-testing utility used by configure