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Heikki Linnakangas 9f3755ea07 Optimize sorting and deduplicating trigrams 
Use templated qsort() so that the comparison function can be
inlined. To speed up qunique(), use a specialized comparison function
that only checks for equality.

Author: David Geier <geidav.pg@gmail.com>
Reviewed-by: Kirill Reshke <reshkekirill@gmail.com>
Discussion: https://www.postgresql.org/message-id/2a76b5ef-4b12-4023-93a1-eed6e64968f3@gmail.com
2026-04-07 14:11:25 +03:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Compute CRC32C on ARM using the Crypto Extension where available 2026-04-04 20:47:01 +07:00
contrib Optimize sorting and deduplicating trigrams 2026-04-07 14:11:25 +03:00
doc Allow logical replication snapshots to be database-specific 2026-04-07 12:31:18 +02:00
src Use add_size/mul_size for index instrumentation size calculations 2026-04-07 12:47:28 +02:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml Enable test_cplusplusext with MSVC 2026-04-01 07:48:47 +02:00
.cirrus.yml ci: Per-repo configuration for manually trigger tasks 2025-08-14 11:54:03 -04:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
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configure Compute CRC32C on ARM using the Crypto Extension where available 2026-04-04 20:47:01 +07:00
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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/.