postgresql

mirror of https://github.com/postgres/postgres.git synced 2026-03-05 06:43:23 -05:00

History

Michael Paquier fdd8857145 Block ALTER INDEX/TABLE index_name ALTER COLUMN colname SET (options) The grammar of this command run on indexes with column names has always been authorized by the parser, and it has never been documented. Since `911e702`, it is possible to define opclass parameters as of CREATE INDEX, which actually broke the old case of ALTER INDEX/TABLE where relation-level parameters n_distinct and n_distinct_inherited could be defined for an index (see `76a47c0` and its thread where this point has been touched, still remained unused). Attempting to do that in v13~ would cause the index to become unusable, as there is a new dedicated code path to load opclass parameters instead of the relation-level ones previously available. Note that it is possible to fix things with a manual catalog update to bring the relation back online. This commit disables this command for now as the use of column names for indexes does not make sense anyway, particularly when it comes to index expressions where names are automatically computed. One way to properly support this case properly in the future would be to use column numbers when it comes to indexes, in the same way as ALTER INDEX .. ALTER COLUMN .. SET STATISTICS. Partitioned indexes were already blocked, but not indexes. Some tests are added for both cases. There was some code in ANALYZE to enforce n_distinct to be used for an index expression if the parameter was defined, but just remove it for now until/if there is support for this (note that index-level parameters never had support in pg_dump either, previously), so this was just dead code. Reported-by: Matthijs van der Vleuten Author: Nathan Bossart, Michael Paquier Reviewed-by: Vik Fearing, Dilip Kumar Discussion: https://postgr.es/m/17220-15d684c6c2171a83@postgresql.org Backpatch-through: 13		2021-10-19 11:03:52 +09:00
..
authentication	Add missing $Test::Builder::Level settings	2021-09-23 23:07:09 +02:00
examples	libpq: Remove deprecated connection parameters authtype and tty	2021-03-09 15:01:22 +01:00
isolation	Rename debug_invalidate_system_caches_always to debug_discard_caches.	2021-07-13 15:01:01 -04:00
kerberos	Add more $Test::Builder::Level in the TAP tests	2021-10-12 11:15:44 +09:00
ldap	Add missing $Test::Builder::Level settings	2021-09-23 23:07:09 +02:00
locale	Remove extraneous newlines added by perl copyright patch	2021-05-07 11:37:37 -04:00
mb	Fix MB regression tests for WAL-logging of hash indexes.	2017-03-15 07:25:36 -04:00
modules	shm_mq: Update mq_bytes_written less often.	2021-10-14 16:13:36 -04:00
perl	Fix PostgresNode install_path sanity tests that fail on Windows	2021-10-15 12:56:29 -04:00
recovery	Change recently added test code for stability	2021-10-13 18:49:27 -03:00
regress	Block ALTER INDEX/TABLE index_name ALTER COLUMN colname SET (options)	2021-10-19 11:03:52 +09:00
ssl	Remove unused regression test certificate server-ss	2021-08-10 11:15:02 +02:00
subscription	Remove gratuitous environment dependency in 002_types.pl test.	2021-09-30 16:23:10 -04:00
Makefile	Revert per-index collation version tracking feature.	2021-05-07 21:10:11 +12:00
README	Remove the option to build thread_test.c outside configure.	2020-10-21 12:08:48 -04:00

README

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