postgresql/src/test
Tomas Vondra ba3e76cc57 Consider Incremental Sort paths at additional places
Commit d2d8a229bc introduced Incremental Sort, but it was considered
only in create_ordered_paths() as an alternative to regular Sort. There
are many other places that require sorted input and might benefit from
considering Incremental Sort too.

This patch modifies a number of those places, but not all. The concern
is that just adding Incremental Sort to any place that already adds
Sort may increase the number of paths considered, negatively affecting
planning time, without any benefit. So we've taken a more conservative
approach, based on analysis of which places do affect a set of queries
that did seem practical. This means some less common queries may not
benefit from Incremental Sort yet.

Author: Tomas Vondra
Reviewed-by: James Coleman
Discussion: https://postgr.es/m/CAPpHfds1waRZ=NOmueYq0sx1ZSCnt+5QJvizT8ndT2=etZEeAQ@mail.gmail.com
2020-04-07 16:43:22 +02:00
..
authentication Allow using Unix-domain sockets on Windows in tests 2020-03-30 17:35:29 +02:00
examples Update copyrights for 2020 2020-01-01 12:21:45 -05:00
isolation Implement Incremental Sort 2020-04-06 21:35:10 +02:00
kerberos Extensive code review for GSSAPI encryption mechanism. 2020-01-11 17:14:08 -05:00
ldap Update copyrights for 2020 2020-01-01 12:21:45 -05:00
locale Make sort-test.py Python 3 compatible 2019-01-04 11:23:24 +01:00
mb Fix MB regression tests for WAL-logging of hash indexes. 2017-03-15 07:25:36 -04:00
modules Introduce xid8-based functions to replace txid_XXX. 2020-04-07 12:04:32 +12:00
perl Allow using Unix-domain sockets on Windows in tests 2020-03-30 17:35:29 +02:00
recovery Introduce xid8-based functions to replace txid_XXX. 2020-04-07 12:04:32 +12:00
regress Consider Incremental Sort paths at additional places 2020-04-07 16:43:22 +02:00
ssl Add bound checks for ssl_min_protocol_version and ssl_max_protocol_version 2020-03-23 11:01:41 +09:00
subscription Add logical replication support to replicate into partitioned tables 2020-04-06 15:15:52 +02:00
thread Update copyrights for 2020 2020-01-01 12:21:45 -05:00
Makefile Revert "Allow on-line enabling and disabling of data checksums" 2018-04-09 19:03:42 +02:00
README Add TAP tests for password-based authentication methods. 2017-03-17 11:34:16 +02:00

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

examples/
  Demonstration programs for libpq that double as regression tests via
  "make check"

isolation/
  Tests for concurrent behavior at the SQL level

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

thread/
  A thread-safety-testing utility used by configure