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David Rowley cefb82d49e Attempt to stabilize partitionwise_aggregate test In `b07642dbc`, we added code to trigger autovacuums based on the number of INSERTs into a table. This seems to have cause some destabilization of the regression tests. Likely this is due to an autovacuum triggering mid-test and (per theory from Tom Lane) one of the test's queries causes autovacuum to skip some number of pages, resulting in the reltuples estimate changing. The failure that this is attempting to fix is around the order of subnodes in an Append. Since the planner orders these according to the subnode cost, then it's possible that a small change in the reltuples value changes the subnode's cost enough that it swaps position with one of its fellow subnodes. The failure here only seems to occur on slower buildfarm machines. In this case, lousyjack, which seems have taken over 8 minutes to run just the partitionwise_aggregate test. Such a slow run would increase the chances that the autovacuum launcher would trigger a vacuum mid-test. Faster machines run this test in sub second time, so have a much smaller window for an autovacuum to trigger. Here we fix this by disabling autovacuum on all tables created in the test. Additionally, this reverts the change made in the partitionwise_aggregate test in `2dc16efed`. Discussion: https://postgr.es/m/22297.1585797192@sss.pgh.pa.us		2020-04-02 21:26:54 +13:00
config	Enable Unix-domain sockets support on Windows	2020-03-28 15:01:01 +01:00
contrib	Fix whitespace	2020-04-02 08:56:12 +02:00
doc	Add SQL functions for Unicode normalization	2020-04-02 08:56:27 +02:00
src	Attempt to stabilize partitionwise_aggregate test	2020-04-02 21:26:54 +13:00
.dir-locals.el	Make Emacs perl-mode indent more like perltidy.	2019-01-13 11:32:31 -08:00
.editorconfig	Add .editorconfig	2019-12-18 09:13:13 +01:00
.gitattributes	gitattributes: Add new file	2019-11-12 08:13:55 +01:00
.gitignore	Support for optimizing and emitting code in LLVM JIT provider.	2018-03-22 11:05:22 -07:00
aclocal.m4	Fix configure's AC_CHECK_DECLS tests to work correctly with clang.	2018-11-19 12:01:47 -05:00
configure	Enable Unix-domain sockets support on Windows	2020-03-28 15:01:01 +01:00
configure.in	Define EXEC_BACKEND in pg_config_manual.h	2020-03-25 14:31:14 +01:00
COPYRIGHT	Update copyrights for 2020	2020-01-01 12:21:45 -05:00
GNUmakefile.in	Add support for automatically updating Unicode derived files	2020-01-09 10:08:14 +01:00
HISTORY	Canonicalize some URLs	2020-02-10 20:47:50 +01:00
Makefile	Don't unset MAKEFLAGS in non-GNU Makefile.	2019-06-25 09:36:21 +12:00
README	Canonicalize some URLs	2020-02-10 20:47:50 +01:00
README.git	Canonicalize some URLs	2020-02-10 20:47:50 +01:00

README

PostgreSQL Database Management System
=====================================

This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces, many of which are listed here:

	https://www.postgresql.org/download/

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.