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Michael Paquier a04ddd077e Improve support for ExplainOneQuery() hook
There is a hook called ExplainOneQuery_hook that gives modules the
possibility to plug into this code path, but, like utility.c for utility
statement execution, there is no corresponding "standard" routine in
the case of EXPLAIN executed for one Query.

This commit adds a new standard_ExplainOneQuery() in explain.c, which is
able to run explain on a non-utility Query without calling its hook.

Per the feedback received from a couple of hackers, this change gives
the possibility to cut a few hundred lines of code in some of the
popular out-of-core modules as these maintained a copy of
ExplainOneQuery(), adding custom extra information at the beginning or
the end of the EXPLAIN output.

Author: Mats Kindahl
Reviewed-by: Aleksander Alekseev, Jelte Fennema-Nio, Andrei Lepikhov
Discussion: https://postgr.es/m/CA+14427V_B4EAoC_o-iYYucRdMSOTfpuH9k-QbexffY1HYJBiA@mail.gmail.com
2024-03-11 08:40:40 +09:00
config Remove AIX support 2024-02-28 15:17:23 +04:00
contrib Fix deparsing of Consts in postgres_fdw ORDER BY 2024-03-11 12:27:11 +13:00
doc Catalog changes preparing for builtin collation provider. 2024-03-09 14:48:18 -08:00
src Improve support for ExplainOneQuery() hook 2024-03-11 08:40:40 +09:00
.cirrus.star Remove duplicate words in docs and code comments. 2023-10-09 09:18:47 +05:30
.cirrus.tasks.yml ci: Add test coverage of different pg_upgrade modes 2024-02-19 09:31:23 +01:00
.cirrus.yml ci: Make compute resources for CI configurable 2023-08-23 15:15:28 -07:00
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aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Add --copy-file-range option to pg_upgrade. 2024-03-06 12:01:01 +13:00
configure.ac Add --copy-file-range option to pg_upgrade. 2024-03-06 12:01:01 +13:00
COPYRIGHT Update copyright for 2024 2024-01-03 20:49:05 -05:00
GNUmakefile.in Combine headerscheck and cpluspluscheck scripts 2024-03-10 07:56:17 +01:00
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_options.txt Add backend support for injection points 2024-01-22 10:15:50 +09:00
meson.build Add --copy-file-range option to pg_upgrade. 2024-03-06 12:01:01 +13:00
README.md Convert README to Markdown. 2024-02-28 14:53:52 -06:00

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/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/.