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Michael Paquier dd5d04e5da doc: Clarify use of ACCESS EXCLUSIVE lock in various sections 
Some sections of the documentation used "exclusive lock" to describe
that an ACCESS EXCLUSIVE lock is taken during a given operation.  This
can be confusing to the reader as ACCESS SHARE is allowed with an
EXCLUSIVE lock is used, but that would not be the case with what is
described on those parts of the documentation.

Author: Greg Rychlewski
Discussion: https://postgr.es/m/CAKemG7VptD=7fNWckFMsMVZL_zzvgDO6v2yVmQ+ZiBfc_06kCQ@mail.gmail.com
Backpatch-through: 9.6
 		2021-04-01 15:29:01 +09:00
config jit: configure: Explicitly reference 'native' component. 2020-12-07 18:40:27 -08:00
contrib Update obsolete comment. 2021-03-30 13:00:05 +09:00
doc doc: Clarify use of ACCESS EXCLUSIVE lock in various sections 2021-04-01 15:29:01 +09:00
src Fix ndistinct estimates with system attributes 2021-03-26 22:44:01 +01:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:36 -08:00
.gitattributes Remove contrib/tsearch2. 2017-02-13 11:06:11 -05:00
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HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
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README Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
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configure Stamp 11.11. 2021-02-08 16:57:36 -05:00
configure.in Stamp 11.11. 2021-02-08 16:57:36 -05:00

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/.