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Dean Rasheed a875743ff4 doc: Improve a couple of places in the MERGE docs. 
In the synopsis, make the syntax for merge_update consistent with the
syntax for a plain UPDATE command. It was missing the optional "ROW"
keyword that can be used in a multi-column assignment, and the option
to assign from a multi-column subquery, both of which have been
supported by MERGE since it was introduced.

In the parameters section for the with_query parameter, mention that
WITH RECURSIVE isn't supported, since this is different from plain
INSERT, UPDATE, and DELETE commands. While at it, move that entry to
the top of the list, for consistency with the other pages.

Back-patch to v15, where MERGE was introduced.

Discussion: https://postgr.es/m/CAEZATCWoQyWkMFfu7JXXQr8dA6%3DgxjhYzgpuBP2oz0QoJTxGWw%40mail.gmail.com
 		2024-03-13 13:12:37 +00:00
config Log LLVM library version in configure output. 2023-10-22 14:24:04 +13:00
contrib Fix deparsing of Consts in postgres_fdw ORDER BY 2024-03-11 12:28:11 +13:00
doc doc: Improve a couple of places in the MERGE docs. 2024-03-13 13:12:37 +00:00
src Fix confusion about the return rowtype of SQL-language procedures. 2024-03-12 18:16:10 -04:00
.cirrus.star ci: Prepare to make compute resources for CI configurable 2023-08-23 15:15:29 -07:00
.cirrus.tasks.yml ci: Make compute resources for CI configurable 2023-08-23 15:15:29 -07:00
.cirrus.yml ci: Make compute resources for CI configurable 2023-08-23 15:15:29 -07:00
.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
.git-blame-ignore-revs Backpatch addition of .git-blame-ignore-revs 2022-08-05 19:36:24 +02:00
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.gitignore Add portlock directory to .gitignore 2022-11-26 07:47:01 -05:00
COPYRIGHT Update copyright for 2024 2024-01-03 20:49:04 -05:00
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HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
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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 Probe $PROVE not $PERL while checking for modules needed by TAP tests. 2021-11-22 12:54:52 -05:00
configure Stamp 15.6. 2024-02-05 16:43:21 -05:00
configure.ac Stamp 15.6. 2024-02-05 16:43:21 -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/.