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Tom Lane 07abbc93ba Fix psql's pager selection for wrapped expanded output. 
psql decided whether to use the pager in expanded output without
accounting for possible wrapping of column values.  This could
allow it to not use the pager in cases where it should do so.

To fix, move the IsPagerNeeded decision in print_aligned_vertical()
down until after the wrapped data width is known.  Then, if we're in
wrapped mode, prepare a width_wrap array specifying that width (which,
in vertical mode, is the same for all columns).

This is fixing an omission in 27da1a796, so back-patch to v19
where that came in.

Author: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Erik Wienhold <ewie@ewie.name>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/A44110E7-6A03-4C67-95AD-527192A6C768@gmail.com
Backpatch-through: 19
2026-07-05 18:11:40 -04:00
.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 Simplify dxsyn_lexize(). 2026-07-05 16:22:40 -04:00
doc Prevent dropping the last label from a property graph element 2026-07-03 12:10:31 +02:00
src Fix psql's pager selection for wrapped expanded output. 2026-07-05 18:11:40 -04:00
.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 commit fdad19e1cf to .git-blame-ignore-revs. 2026-07-03 14:05:21 +05:30
.gitattributes Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
.mailmap Add a Git .mailmap file 2024-11-05 13:56:02 +01:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Stamp HEAD as 20devel. 2026-06-29 16:29:11 -04:00
configure.ac Stamp HEAD as 20devel. 2026-06-29 16:29:11 -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 HEAD as 20devel. 2026-06-29 16:29:11 -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/.