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03c811a483
As coded, the ICU-collation path in pattern_char_isalpha() failed to consider regular ASCII letters to be case-varying. This led to like_fixed_prefix treating too much of an ILIKE pattern as being a fixed prefix, so that indexscans derived from an ILIKE clause might miss entries that they should find. Per bug #15892 from James Inform. This is an oversight in the original ICU patch (commit eccfef81e), so back-patch to v10 where that came in. Discussion: https://postgr.es/m/15892-e5d2bea3e8a04a1b@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