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mirror of https://github.com/postgres/postgres.git synced 2026-10-23 13:29:09 +03:00
David Rowley 8d5b228ae9 Fix tuplesort memory accounting for datum sorts on byref types
6ed83d5fa made it so tuplesorts could use a bump.c memory allocator for
non-bounded sorts in order to save memory and increase performance.
That commit didn't get the memory accounting correct for datum sorts and
mistakenly passed 0 bytes to tuplesort_puttuple_common().  That was
correct for byval types, but failed to take into account palloc'd memory
for byref types.

Fix by using datumGetSize() when using the bump allocator and by using
GetMemoryChunkSpace() when not.

Backpatch to v17, where 6ed83d5fa was added.

Author: Mario Karuza <mkaruza.pg@icloud.com>
Reviewed-by: David Rowley <dgrowleyml@gmail.com>
Reviewed-by: Joao Detomini <joao.detomini@enterprisedb.com>
Discussion: https://postgr.es/m/e9f9f54337cd86a982837763958518cdbf08863c.camel%40icloud.com
Backpatch-through: 17
2026-10-06 01:21:53 +13:00
2025-08-14 12:09:53 -04:00
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2024-11-05 13:56:02 +01:00
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2020-02-10 20:47:50 +01:00
2026-08-11 14:38:31 -04:00

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/18/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/18/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/.

Description
Зеркало официального репозитория PostgreSQL GIT
Readme 1.3 GiB
Languages
C 83.9%
PLpgSQL 6.2%
Perl 5.4%
Yacc 1.2%
Meson 0.7%
Other 2.4%