postgresql

History

Tom Lane 7a844c77ec Fix joinclause removal logic to cope with cloned clauses. When we're deleting a no-op LEFT JOIN from the query, we must remove the join's joinclauses from surviving relations' joininfo lists. The invention of "cloned" clauses in `2489d76c4` broke the logic for that; it'd fail to remove clones that include OJ relids outside the doomed join's min relid sets, which could happen if that join was previously discovered to commute with some other join. This accidentally failed to cause problems in the majority of cases, because we'd never decide that such a cloned clause was evaluatable at any surviving join. However, Richard Guo discovered a case where that did happen, leading to "no relation entry for relid" errors later. Also, adding assertions that a non-removed clause contains no Vars from the doomed join exposes that there are quite a few existing regression test cases where the problem happens but is accidentally not exposed. The fix for this is just to include the target join's commute_above_r and commute_below_l sets in the relid set we test against when deciding whether a join clause is "pushed down" and thus not removable. While at it, do a little refactoring: the join's relid set can be computed inside remove_rel_from_query rather than in the caller. Patch by me; thanks to Richard Guo for review. Discussion: https://postgr.es/m/CAMbWs4_PHrRqTKDNnTRsxxQy6BtYCVKsgXm1_gdN2yQ=kmcO5g@mail.gmail.com		2023-05-26 12:13:19 -04:00
..
authentication	Pre-beta mechanical code beautification.	2023-05-19 17:24:48 -04:00
examples	Update copyright for 2023	2023-01-02 15:00:37 -05:00
icu	Pre-beta mechanical code beautification.	2023-05-19 17:24:48 -04:00
isolation	Fix misbehavior of EvalPlanQual checks with multiple result relations.	2023-05-19 14:26:40 -04:00
kerberos	Spell the values of libpq's gssdelegation parameter as "0" and "1".	2023-05-22 11:50:27 -04:00
ldap	Pre-beta mechanical code beautification.	2023-05-19 17:24:48 -04:00
locale	Update copyright for 2023	2023-01-02 15:00:37 -05:00
mb	Fix MB regression tests for WAL-logging of hash indexes.	2017-03-15 07:25:36 -04:00
modules	Pre-beta mechanical code beautification.	2023-05-19 17:24:48 -04:00
perl	Spell the values of libpq's gssdelegation parameter as "0" and "1".	2023-05-22 11:50:27 -04:00
recovery	Pre-beta mechanical code beautification.	2023-05-19 17:24:48 -04:00
regress	Fix joinclause removal logic to cope with cloned clauses.	2023-05-26 12:13:19 -04:00
ssl	Add newline at end of file	2023-05-23 15:18:06 +02:00
subscription	Pre-beta mechanical code beautification.	2023-05-19 17:24:48 -04:00
Makefile	Refactor PG_TEST_EXTRA logic in autoconf build	2022-09-20 11:24:16 -07:00
README	Remove the option to build thread_test.c outside configure.	2020-10-21 12:08:48 -04:00
meson.build	Update copyright for 2023	2023-01-02 15:00:37 -05:00

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