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Tom Lane caf626b2cd Convert [autovacuum_]vacuum_cost_delay into floating-point GUCs. 
This change makes it possible to specify sub-millisecond delays,
which work well on most modern platforms, though that was not true
when the cost-delay feature was designed.

To support this without breaking existing configuration entries,
improve guc.c to allow floating-point GUCs to have units.  Also,
allow "us" (microseconds) as an input/output unit for time-unit GUCs.
(It's not allowed as a base unit, at least not yet.)

Likewise change the autovacuum_vacuum_cost_delay reloption to be
floating-point; this forces a catversion bump because the layout of
StdRdOptions changes.

This patch doesn't in itself change the default values or allowed
ranges for these parameters, and it should not affect the behavior
for any already-allowed setting for them.

Discussion: https://postgr.es/m/1798.1552165479@sss.pgh.pa.us
 		2019-03-10 15:01:39 -04:00
..
authentication Update copyright for 2019 2019-01-02 12:44:25 -05:00
examples Update copyright for 2019 2019-01-02 12:44:25 -05:00
isolation In the planner, replace an empty FROM clause with a dummy RTE. 2019-01-28 17:54:23 -05:00
kerberos Update copyright for 2019 2019-01-02 12:44:25 -05:00
ldap Update copyright for 2019 2019-01-02 12:44:25 -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 Teach optimizer's predtest.c more things about ScalarArrayOpExpr. 2019-03-01 17:14:17 -05:00
perl Set cluster_name for PostgresNode.pm instances 2019-02-27 10:59:25 +01:00
recovery Allow recovery tests to run on Windows as an admin user 2019-03-04 15:54:02 -05:00
regress Convert [autovacuum_]vacuum_cost_delay into floating-point GUCs. 2019-03-10 15:01:39 -04:00
ssl Add new clientcert hba option verify-full 2019-03-09 12:19:47 -08:00
subscription Fix a crash in logical replication 2019-01-30 08:49:54 +01:00
thread Ensure link commands list *.o files before LDFLAGS. 2019-01-02 13:57:54 -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

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