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On a multi-level partioned table, when adding a partition not directly connected to the root table, foreign key constraints referencing the root were not cloned to the new partition, leading to the FK being possibly inadvertently violated later on. This was caused by fuzzy thinking in CloneFkReferenced (commit f56f8f8da6af): it was skipping constraints marked as having parents on the theory that cloning those would create duplicates; but that's only correct for the top level of the partitioning hierarchy. For levels below that one, such constraints must still be considered and only skipped if later on we see that we'd create duplicates. Apparently, I (Álvaro) wrote the comments right but the code implemented something slightly different. Author: Jehan-Guillaume de Rorthais Discussion: https://postgr.es/m/20200206004948.238352db@firost
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