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Peter Eisentraut bc3ae886a7 Forbid FOR PORTION OF with WHERE CURRENT OF 
It is not clear how the implicit condition of FOR PORTION OF should
interact with the use of a cursor.  Normally, we forbid combining
WHERE CURRENT OF with other WHERE conditions.  The SQL standard only
includes FOR PORTION OF with <update statement: searched> and <delete
statement: searched>, not <update statement: positioned> or <delete
statement: positioned>, so it is easy for us to exclude the
functionality, at least for now.

Author: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Discussion: https://www.postgresql.org/message-id/flat/CA%2BrenyUEKPexUYsH4qeU8_o1jqKsUkEWca1keS6n21shgG1g%2BA%40mail.gmail.com
2026-06-29 15:17:10 +02:00
.github ci: Improve ccache handling 2026-06-08 15:26:47 -04:00
config Update config.guess and config.sub 2026-04-09 11:26:14 +02:00
contrib plpython: Fix NULL pointer dereferences for broken sequence and mapping objects 2026-06-29 11:38:39 +09:00
doc Forbid FOR PORTION OF with WHERE CURRENT OF 2026-06-29 15:17:10 +02:00
src Forbid FOR PORTION OF with WHERE CURRENT OF 2026-06-29 15:17:10 +02:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.git-blame-ignore-revs Add previous commit to .git-blame-ignore-revs. 2026-06-04 10:16:21 -05:00
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aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Stamp 19beta1. 2026-06-01 16:02:13 -04:00
configure.ac Stamp 19beta1. 2026-06-01 16:02:13 -04:00
COPYRIGHT Update copyright for 2026 2026-01-01 13:24:10 -05:00
GNUmakefile.in Allow selecting the git revision to be packaged by "make dist". 2024-05-03 11:08:50 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Restore AIX support. 2026-02-23 13:34:22 -05:00
meson.build Stamp 19beta1. 2026-06-01 16:02:13 -04:00
meson_options.txt Revert "Add built-in fuzzing harnesses for security testing." 2026-04-10 09:53:58 -04:00
README.md Revise the style of a paragraph in README.md. 2024-03-21 10:16:41 -05:00

README.md

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.

Copyright and license information can be found in the file COPYRIGHT.

General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.

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