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6d5b4031b9
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Noah Misch 6d5b4031b9 Move I/O before the index_update_stats() buffer lock region. 
Commit a07e03fd8f enlarged the work done
here under the pg_class heap buffer lock.  Two preexisting actions are
best done before holding that lock.  Both RelationGetNumberOfBlocks()
and visibilitymap_count() do I/O, and the latter might exclusive-lock a
visibility map buffer.  Moving these reduces contention and risk of
undetected LWLock deadlock.  Back-patch to v12, like that commit.

Discussion: https://postgr.es/m/20241031200139.b4@rfd.leadboat.com
2024-11-02 09:05:04 -07:00
config Log LLVM library version in configure output. 2023-10-22 14:24:04 +13:00
contrib Stabilize the test added by commit 022564f60c. 2024-10-08 11:45:58 +05:30
doc doc: fix ALTER DOMAIN domain_constraint to spell out options 2024-11-01 13:54:28 -04:00
src Move I/O before the index_update_stats() buffer lock region. 2024-11-02 09:05:04 -07:00
.cirrus.star ci: Prepare to make compute resources for CI configurable 2023-08-23 15:15:29 -07:00
.cirrus.tasks.yml ci: Pin MacPorts version to 2.9.3. 2024-07-25 14:49:19 +12:00
.cirrus.yml ci: Make compute resources for CI configurable 2023-08-23 15:15:29 -07:00
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README.git

README 

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.

PostgreSQL has many language interfaces, many of which are listed here:

	https://www.postgresql.org/download/

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.