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This WARNING appeared because SearchSysCacheLocked1() read cc_relisshared before catcache initialization, when the field is false unconditionally. On the basis of reading false there, it constructed a locktag as though pg_tablespace weren't relisshared. Only shared catalogs could be affected, and only GRANT TABLESPACE was affected in practice. SearchSysCacheLocked1() callers use one other shared-relation syscache, DATABASEOID. DATABASEOID is initialized by the end of CheckMyDatabase(), making the problem unreachable for pg_database. Back-patch to v13 (all supported versions). This has no known impact before v16, where ExecGrant_common() first appeared. Earlier branches avoid trouble by having a separate ExecGrant_Tablespace() that doesn't use LOCKTAG_TUPLE. However, leaving this unfixed in v15 could ensnare a future back-patch of a SearchSysCacheLocked1() call. Reported by Aya Iwata. Discussion: https://postgr.es/m/OS7PR01MB11964507B5548245A7EE54E70EA212@OS7PR01MB11964.jpnprd01.prod.outlook.com
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 (but see also below) examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level kerberos/ Tests for Kerberos/GSSAPI authentication and encryption ldap/ Tests for LDAP-based authentication 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