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In commit ec62cb0aa, I foolishly replaced ExecEvalWholeRowVar's lookup_rowtype_tupdesc_domain call with just lookup_rowtype_tupdesc, because I didn't see how a domain could be involved there, and there were no regression test cases to jog my memory. But the existing code was correct, so revert that change and add a test case showing why it's necessary. (Note: per comment in struct DatumTupleFields, it is correct to produce an output tuple that's labeled with the base composite type, not the domain; hence just blindly looking through the domain is correct here.) Per bug #17515 from Dan Kubb. Back-patch to v11 where domains over composites became a thing. Discussion: https://postgr.es/m/17515-a24737438363aca0@postgresql.org
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