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If we restrict unique constraints on partitioned tables so that they must always include the partition key, then our standard approach to unique indexes already works --- each unique key is forced to exist within a single partition, so enforcing the unique restriction in each index individually is enough to have it enforced globally. Therefore we can implement unique indexes on partitions by simply removing a few restrictions (and adding others.) Discussion: https://postgr.es/m/20171222212921.hi6hg6pem2w2t36z@alvherre.pgsql Discussion: https://postgr.es/m/20171229230607.3iib6b62fn3uaf47@alvherre.pgsql Reviewed-by: Simon Riggs, Jesper Pedersen, Peter Eisentraut, Jaime Casanova, Amit Langote
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