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Noah Misch 5184932432 Fix CREATE INDEX CONCURRENTLY for the newest prepared transactions. 
The purpose of commit 8a54e12a38 was to
fix this, and it sufficed when the PREPARE TRANSACTION completed before
the CIC looked for lock conflicts.  Otherwise, things still broke.  As
before, in a cluster having used CIC while having enabled prepared
transactions, queries that use the resulting index can silently fail to
find rows.  It may be necessary to reindex to recover from past
occurrences; REINDEX CONCURRENTLY suffices.  Fix this for future index
builds by making CIC wait for arbitrarily-recent prepared transactions
and for ordinary transactions that may yet PREPARE TRANSACTION.  As part
of that, have PREPARE TRANSACTION transfer locks to its dummy PGPROC
before it calls ProcArrayClearTransaction().  Back-patch to 9.6 (all
supported versions).

Andrey Borodin, reviewed (in earlier versions) by Andres Freund.

Discussion: https://postgr.es/m/01824242-AA92-4FE9-9BA7-AEBAFFEA3D0C@yandex-team.ru
2021-10-23 18:36:43 -07:00
..
examples Client-side fixes for delayed NOTIFY receipt. 2018-10-19 22:22:57 -04:00
isolation Remove memory leaks in isolationtester. 2021-06-27 12:45:04 -04:00
locale Add a temp-install prerequisite to "check"-like targets not having one. 2017-11-05 18:52:38 -08:00
mb Revert "Fix broken multibyte regression tests." 2016-01-26 08:29:15 +09:00
modules Avoid using ambiguous word "non-negative" in error messages. 2021-07-28 01:26:15 +09:00
perl Fix CREATE INDEX CONCURRENTLY for the newest prepared transactions. 2021-10-23 18:36:43 -07:00
recovery Change recently added test code for stability 2021-10-13 18:49:27 -03:00
regress Fix corner-case loss of precision in numeric_power(). 2021-10-06 13:24:22 +01:00
ssl Fix searchpath and module location for pg_rewind and ssl TAP tests 2019-02-07 11:10:34 -05:00
thread Update copyright for 2016 2016-01-02 13:33:40 -05:00
Makefile Install TAP test infrastructure so it's available for extension testing. 2016-09-23 15:50:00 -04:00
README Minor tweaks for new src/test/recovery 2016-02-29 18:16:59 -03:00

README 

PostgreSQL tests
================

This directory contains a variety of test infrastructure as well as some of the
tests in PostgreSQL. Not all tests are here -- in particular, there are more in
individual contrib/ modules and in src/bin.

Not all these tests get run by "make check". Check src/test/Makefile to see
which tests get run automatically.

examples/
  Demonstration programs for libpq that double as regression tests via
  "make check"

isolation/
  Tests for concurrent behavior at the SQL level

locale/
  Sanity checks for locale data, encodings, etc

mb/
  Tests for multibyte encoding (UTF-8) support

modules/
  Extensions used only or mainly for test purposes, generally not suitable
  for installing in production databases

perl/
  Infrastructure for Perl-based TAP tests

recovery/
  Test suite for recovery and replication

regress/
  PostgreSQL's main regression test suite, pg_regress

ssl/
  Tests to exercise and verify SSL certificate handling

thread/
  A thread-safety-testing utility used by configure