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Andres Freund 24da5b239a Add test for HeapBitmapScan's broken skip_fetch optimization 
In the previous commit HeapBitmapScan's skip_fetch optimization was removed,
due to being broken in not easily fixable ways. Add a test that verifies we
don't re-introduce this bug if somebody tries to re-add the feature.

Only add the test to master for now, it's possible it's not entirely
stable. That seems sufficient, as we're not going to re-introduce the feature
on the backbranches. I did verify that the test passes on all branches. If the
test turns out to be unproblematic, we can backpatch it later, should we feel
a need to do so.

Discussion: https://postgr.es/m/CAEze2Wg3gXXZTr6_rwC+s4-o2ZVFB5F985uUSgJTsECx6AmGcQ@mail.gmail.com
2025-04-02 14:58:39 -04:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Optimize popcount functions with ARM SVE intrinsics. 2025-03-28 16:20:20 -05:00
contrib read_stream: Introduce and use optional batchmode support 2025-03-30 18:36:41 -04:00
doc Change SQL-language functions to use the plan cache. 2025-04-02 14:06:02 -04:00
src Add test for HeapBitmapScan's broken skip_fetch optimization 2025-04-02 14:58:39 -04:00
.cirrus.star Remove duplicate words in docs and code comments. 2023-10-09 09:18:47 +05:30
.cirrus.tasks.yml aio: Add io_method=io_uring 2025-03-26 19:49:13 -04:00
.cirrus.yml ci: Test NetBSD and OpenBSD 2025-02-12 09:40:07 -05:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add script to keep .editorconfig in sync with .gitattributes 2025-02-01 10:09:45 +01:00
.git-blame-ignore-revs Add commit 796bdda484 to .git-blame-ignore-revs. 2025-03-18 17:00:23 -05:00
.gitattributes Add script to keep .editorconfig in sync with .gitattributes 2025-02-01 10:09:45 +01:00
.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 Add timingsafe_bcmp(), for constant-time memory comparison 2025-04-02 15:32:40 +03:00
configure.ac Add timingsafe_bcmp(), for constant-time memory comparison 2025-04-02 15:32:40 +03:00
COPYRIGHT Update copyright for 2025 2025-01-01 11:21:55 -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 Remove AIX support 2024-02-28 15:17:23 +04:00
meson.build Add timingsafe_bcmp(), for constant-time memory comparison 2025-04-02 15:32:40 +03:00
meson_options.txt aio: Add liburing dependency 2025-03-26 19:45:32 -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/.