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Commit cbc127917e introduced tracking of unpruned relids to skip processing of pruned partitions. PlannedStmt.unprunableRelids is computed as the difference between PlannerGlobal.allRelids and prunableRelids, but allRelids only contains RTE_RELATION entries. This means non-relation RTEs (VALUES, subqueries, CTEs, etc.) are never included in unprunableRelids, and consequently not in es_unpruned_relids at runtime. As a result, rowmarks attached to non-relation RTEs were incorrectly skipped during executor initialization. This affects any DML statement that has rowmarks on such RTEs, including MERGE with a VALUES or subquery source, and UPDATE/DELETE with joins against subqueries or CTEs. When a concurrent update triggers an EPQ recheck, the missing rowmark leads to incorrect results. Fix by restricting the es_unpruned_relids membership check to RTE_RELATION entries only, since partition pruning only applies to actual relations. Rowmarks for other RTE kinds are now always processed. Bug: #19355 Reported-by: Bihua Wang <wangbihua.cn@gmail.com> Diagnosed-by: Dean Rasheed <dean.a.rasheed@gmail.com> Diagnosed-by: Tender Wang <tndrwang@gmail.com> Author: Dean Rasheed <dean.a.rasheed@gmail.com> Discussion: https://postgr.es/m/19355-57d7d52ea4980dc6@postgresql.org Backpatch-through: 18
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