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3d79013b97
Previously the changes to the "data" part of the sequence, i.e. the one containing the current value, were not transactional, whereas the definition, including minimum and maximum value were. That leads to odd behaviour if a schema change is rolled back, with the potential that out-of-bound sequence values can be returned. To avoid the issue create a new relfilenode fork whenever ALTER SEQUENCE is executed, similar to how TRUNCATE ... RESTART IDENTITY already is already handled. This commit also makes ALTER SEQUENCE RESTART transactional, as it seems to be too confusing to have some forms of ALTER SEQUENCE behave transactionally, some forms not. This way setval() and nextval() are not transactional, but DDL is, which seems to make sense. This commit also rolls back parts of the changes made in 3d092fe540 and f8dc1985f as they're now not needed anymore. Author: Andres Freund Discussion: https://postgr.es/m/20170522154227.nvafbsm62sjpbxvd@alap3.anarazel.de Backpatch: Bug is in master/v10 only
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