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Michael Paquier 7e61e4cc7c Make two-phase tests of ECPG and main suite more concurrent-proof 
The ECPG and main 2PC tests have been using rather-generic names for the
prepared transactions they generate.  This commit switches the 2PC
transactions to use more complex GIDs, reducing the risk of naming
conflicts.

The main 2PC tests also include scans of pg_prepared_xacts that do not
apply filters on the GID of the prepared transactions, making it
possible to fail the test when any 2PC transaction runs concurrently.
The CI has been able to see such failures with an installcheck
running the ECPG and the main regression test suites in parallel.  The
queries on pg_prepared_xacts gain quals to only look after the GIDs
generated locally.

The race is very hard to reproduce, so no backbatch is done for now.

Reported-by: Richard Guo
Discussion: https://postgr.es/m/CAMbWs4-mWCGbbE_bne5=AfqjYGDaUZmjCw2+soLjrdNA0xUDFw@mail.gmail.com
 		2024-04-29 21:10:41 +09:00
config Update config.guess and config.sub 2024-04-09 14:21:57 +02:00
contrib Make postgres_fdw request remote time zone 'GMT' not 'UTC'. 2024-04-21 13:46:20 -04:00
doc Revert "Add GUC backtrace_on_internal_error" 2024-04-29 10:49:42 +02:00
src Make two-phase tests of ECPG and main suite more concurrent-proof 2024-04-29 21:10:41 +09:00
.cirrus.star Remove duplicate words in docs and code comments. 2023-10-09 09:18:47 +05:30
.cirrus.tasks.yml Add tests for libpq gssencmode and sslmode options 2024-04-08 02:49:32 +03:00
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HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Remove AIX support 2024-02-28 15:17:23 +04:00
README.md Revise the style of a paragraph in README.md. 2024-03-21 10:16:41 -05:00
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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/.