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Inheritance trees can include temporary tables if the parent is permanent, which makes possible the presence of multiple temporary children from different sessions. Trying to issue a TRUNCATE on the parent in this scenario causes a failure, so similarly to any other queries just ignore such cases, which makes TRUNCATE work transparently. This makes truncation behave similarly to any other DML query working on the parent table with queries which need to be work on the children. A set of isolation tests is added to cover basic cases. Reported-by: Zhou Digoal Author: Amit Langote, Michael Paquier Discussion: https://postgr.es/m/15565-ce67a48d0244436a@postgresql.org Backpatch-through: 9.4
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