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Robert Haas 8b304b8b72 Remove replacement selection sort. 
At the time replacement_sort_tuples was introduced, there were still
cases where replacement selection sort noticeably outperformed using
quicksort even for the first run.  However, those cases seem to have
evaporated as a result of further improvements made since that time
(and perhaps also advances in CPU technology).  So remove replacement
selection and the controlling GUC entirely.  This makes tuplesort.c
noticeably simpler and probably paves the way for further
optimizations someone might want to do later.

Peter Geoghegan, with review and testing by Tomas Vondra and me.

Discussion: https://postgr.es/m/CAH2-WzmmNjG_K0R9nqYwMq3zjyJJK+hCbiZYNGhAy-Zyjs64GQ@mail.gmail.com
2017-09-29 10:25:44 -04:00
..
authentication Post-PG 10 beta1 pgperltidy run 2017-05-17 19:01:23 -04:00
examples Update copyright via script for 2017 2017-01-03 13:48:53 -05:00
isolation Fix freezing of a dead HOT-updated tuple 2017-09-28 16:44:01 +02:00
ldap src/test/ldap: Fix test function in Linux port 2017-09-16 00:39:37 +02:00
locale Clean up Perl code according to perlcritic 2017-03-27 08:18:22 -04:00
mb Fix MB regression tests for WAL-logging of hash indexes. 2017-03-15 07:25:36 -04:00
modules Test BRIN autosummarization 2017-09-23 14:15:06 +02:00
perl Turn on log_replication_commands in PostgresNode 2017-09-26 16:05:25 -04:00
recovery Ten-second timeout in 013_crash_restart.pl is not enough, let's try 60. 2017-09-23 12:56:31 -04:00
regress Remove replacement selection sort. 2017-09-29 10:25:44 -04:00
ssl Remove incorrect comment 2017-06-17 10:19:48 +02:00
subscription Handle heap rewrites better in logical replication 2017-09-26 10:13:43 -04:00
thread Avoid use of bool in thread_test.c 2017-09-14 13:27:54 -04:00
Makefile Add LDAP authentication test suite 2017-09-15 11:44:29 -04:00
README Add TAP tests for password-based authentication methods. 2017-03-17 11:34:16 +02:00

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

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