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Michael Paquier 9e4664d950 Add a new 'F' entry type for fixed-numbered stats in pgstats file 
This new entry type is used for all the fixed-numbered statistics,
making possible support for custom pluggable stats.  In short, we need
to be able to detect more easily if a stats kind exists or not when
reading back its data from the pgstats file without a dependency on the
order of the entries read.  The kind ID of the stats is added to the
data written.

The data is written in the same fashion as previously, with the
fixed-numbered stats first and the dshash entries next.  The read part
becomes more flexible, loading fixed-numbered stats into shared memory
based on the new entry type found.

Bump PGSTAT_FILE_FORMAT_ID.

Reviewed-by: Bertrand Drouvot
Discussion: https://postgr.es/m/Zot5bxoPYdS7yaoy@paquier.xyz
2024-07-11 16:12:44 +09:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config jit: Remove {llvm-config,clang}-N configure probes. 2024-05-16 13:58:25 +12:00
contrib Add simple codepoint redirections to unaccent.rules. 2024-07-05 15:25:31 +12:00
doc Revamp documentation for predefined roles. 2024-07-10 16:35:25 -05:00
src Add a new 'F' entry type for fixed-numbered stats in pgstats file 2024-07-11 16:12:44 +09:00
.cirrus.star Remove duplicate words in docs and code comments. 2023-10-09 09:18:47 +05:30
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aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
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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/.