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Tom Lane eae0e20def Remove over-optimistic Assert. 
In commit 2489d76c4, I'd thought it'd be safe to assert that a
PlaceHolderVar appearing in a scan-level expression has empty
nullingrels.  However this is not so, as when we determine that a
join relation is certainly empty we'll put its targetlist into a
Result-with-constant-false-qual node, and nothing is done to adjust
the nullingrels of the Vars or PHVs therein.  (Arguably, a Result
used in this way isn't really a scan-level node, but it certainly
isn't an upper node either ...)

It's not clear this is worth any close analysis, so let's just
take out the faulty Assert.

Per report from Robins Tharakan.  I added a test case based on
his example, just in case somebody tries to tighten this up.

Discussion: https://postgr.es/m/CAEP4nAz7Enq3+DEthGG7j27DpuwSRZnW0Nh6jtNh75yErQ_nbA@mail.gmail.com
2023-01-31 11:57:47 -05:00
..
authentication Support the same patterns for pg-user in pg_ident.conf as in pg_hba.conf 2023-01-20 11:21:55 +09:00
examples Update copyright for 2023 2023-01-02 15:00:37 -05:00
icu Update copyright for 2023 2023-01-02 15:00:37 -05:00
isolation Fix MAINTAIN privileges for toast tables and partitions. 2023-01-14 00:16:23 -08:00
kerberos Update copyright for 2023 2023-01-02 15:00:37 -05:00
ldap Add a test using ldapbindpasswd in pg_hba.conf 2023-01-23 08:40:18 -05:00
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 meson: Add two missing regress tests 2023-01-17 13:49:09 -08:00
perl Fix AdjustUpgrade.pm's view conversion list for --with-lz4. 2023-01-18 16:51:40 -05:00
recovery Remove recovery test 011_crash_recovery.pl 2023-01-31 12:46:56 +09:00
regress Remove over-optimistic Assert. 2023-01-31 11:57:47 -05:00
ssl Fix typos in comments, code and documentation 2023-01-03 16:26:14 +09:00
subscription Rename GUC logical_decoding_mode to logical_replication_mode. 2023-01-30 08:02:08 +05:30
Makefile Refactor PG_TEST_EXTRA logic in autoconf build 2022-09-20 11:24:16 -07:00
meson.build Update copyright for 2023 2023-01-02 15:00:37 -05:00
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