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SET CONSTRAINTS ... DEFERRED failed on partitioned tables, because of a sanity check that ensures that the affected constraints have triggers. On partitioned tables, the triggers are in the leaf partitions, not in the partitioned relations themselves, so the sanity check fails. Removing the sanity check solves the problem, because the code needed to support the case is already there. Backpatch to 11. Note: deferred unique constraints are not affected by this bug, because they do have triggers in the parent partitioned table. I did not add a test for this scenario. Discussion: https://postgr.es/m/20191105212915.GA11324@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 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