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Tom Lane 1103033aed Reject SELECT ... GROUP BY GROUPING SETS (()) FOR UPDATE. 
This case should be disallowed, just as FOR UPDATE with a plain
GROUP BY is disallowed; FOR UPDATE only makes sense when each row
of the query result can be identified with a single table row.
However, we missed teaching CheckSelectLocking() to check
groupingSets as well as groupClause, so that it would allow
degenerate grouping sets.  That resulted in a bad plan and
a null-pointer dereference in the executor.

Looking around for other instances of the same bug, the only one
I found was in examine_simple_variable().  That'd just lead to
silly estimates, but it should be fixed too.

Per private report from Yaoguang Chen.
Back-patch to all supported branches.
2021-06-01 11:12:56 -04:00
..
authentication Initial pgindent and pgperltidy run for v14. 2021-05-12 13:14:10 -04:00
examples libpq: Remove deprecated connection parameters authtype and tty 2021-03-09 15:01:22 +01:00
isolation Make detach-partition-concurrently-4 less timing sensitive 2021-05-25 19:44:55 -04:00
kerberos Initial pgindent and pgperltidy run for v14. 2021-05-12 13:14:10 -04:00
ldap Add a copyright notice to perl files lacking one. 2021-05-07 10:56:14 -04:00
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 Fix vpath build in libpq_pipeline test 2021-05-27 16:40:52 +02:00
perl Raise a timeout to 180s, in test 010_logical_decoding_timelines.pl. 2021-05-31 00:29:58 -07:00
recovery Raise a timeout to 180s, in test 010_logical_decoding_timelines.pl. 2021-05-31 00:29:58 -07:00
regress Reject SELECT ... GROUP BY GROUPING SETS (()) FOR UPDATE. 2021-06-01 11:12:56 -04:00
ssl Initial pgindent and pgperltidy run for v14. 2021-05-12 13:14:10 -04:00
subscription pgoutput: Fix memory leak due to RelationSyncEntry.map. 2021-06-01 14:27:14 +05:30
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