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Tom Lane e135743ef0 Reduce runtime of privileges.sql test under CLOBBER_CACHE_ALWAYS. 
Several queries in the privileges regression test cause the planner
to apply the plpgsql function "leak()" to every element of the
histogram for atest12.b.  Since commit 0c882e52a increased the size
of that histogram to 10000 entries, the test invokes that function
over 100000 times, which takes an absolutely unreasonable amount of
time in clobber-cache-always mode.

However, there's no real reason why that has to be a plpgsql
function: for the purposes of this test, all that matters is that
it not be marked leakproof.  So we can replace the plpgsql
implementation with a direct call of int4lt, which has the same
behavior and is orders of magnitude faster.  This is expected to
cut several hours off the buildfarm cycle time for CCA animals.
It has some positive impact in normal builds too, though that's
probably lost in the noise.

Back-patch to v13 where 0c882e52a came in.

Discussion: https://postgr.es/m/575884.1620626638@sss.pgh.pa.us
 		2021-05-11 20:59:58 -04:00
config Update config.guess and config.sub 2021-04-21 16:33:40 +02:00
contrib Copy the INSERT query in postgres_fdw 2021-05-07 22:29:43 +02:00
doc doc: update PG 14 release notes based on feedback 2021-05-11 17:40:52 -04:00
src Reduce runtime of privileges.sql test under CLOBBER_CACHE_ALWAYS. 2021-05-11 20:59:58 -04:00
.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
COPYRIGHT Update copyright for 2021 2021-01-02 13:06:25 -05:00
GNUmakefile.in Make install-tests target work with vpath builds 2020-05-31 18:33:00 -04:00
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
aclocal.m4 Remove configure-time probe for DocBook DTD. 2020-11-30 15:24:13 -05:00
configure Refactor HMAC implementations 2021-04-03 17:30:49 +09:00
configure.ac Refactor HMAC implementations 2021-04-03 17:30:49 +09:00

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/.