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Dean Rasheed 0294df2f1f Add support for MERGE ... WHEN NOT MATCHED BY SOURCE. 
This allows MERGE commands to include WHEN NOT MATCHED BY SOURCE
actions, which operate on rows that exist in the target relation, but
not in the data source. These actions can execute UPDATE, DELETE, or
DO NOTHING sub-commands.

This is in contrast to already-supported WHEN NOT MATCHED actions,
which operate on rows that exist in the data source, but not in the
target relation. To make this distinction clearer, such actions may
now be written as WHEN NOT MATCHED BY TARGET.

Writing WHEN NOT MATCHED without specifying BY SOURCE or BY TARGET is
equivalent to writing WHEN NOT MATCHED BY TARGET.

Dean Rasheed, reviewed by Alvaro Herrera, Ted Yu and Vik Fearing.

Discussion: https://postgr.es/m/CAEZATCWqnKGc57Y_JanUBHQXNKcXd7r=0R4NEZUVwP+syRkWbA@mail.gmail.com
 		2024-03-30 10:00:26 +00:00
..
authentication Update copyright for 2024 2024-01-03 20:49:05 -05:00
examples Update copyright for 2024 2024-01-03 20:49:05 -05:00
icu Address more review comments on commit 2d819a08a1. 2024-03-18 11:58:13 -07:00
isolation Add support for MERGE ... WHEN NOT MATCHED BY SOURCE. 2024-03-30 10:00:26 +00:00
kerberos Activate perlcritic InputOutput::RequireCheckedSyscalls and fix resulting warnings 2024-03-19 07:09:31 +01:00
ldap Update copyright for 2024 2024-01-03 20:49:05 -05:00
locale Update copyright for 2024 2024-01-03 20:49:05 -05:00
mb
…
modules Remove superfluous trailing semicolons 2024-03-29 23:51:43 +01:00
perl Activate perlcritic InputOutput::RequireCheckedSyscalls and fix resulting warnings 2024-03-19 07:09:31 +01:00
recovery Change last_inactive_time to inactive_since in pg_replication_slots. 2024-03-27 09:27:44 +05:30
regress Add support for MERGE ... WHEN NOT MATCHED BY SOURCE. 2024-03-30 10:00:26 +00:00
ssl Revert "Add notBefore and notAfter to SSL cert info display" 2024-03-22 22:58:41 +01:00
subscription Fix the intermittent buildfarm failures in 031_column_list. 2024-02-22 12:06:44 +05:30
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 2024 2024-01-03 20:49:05 -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