postgresql

mirror of https://github.com/postgres/postgres.git synced 2026-03-14 06:32:18 -04:00

History

Tom Lane f42ea8350d Fix use-after-free issue in regexp engine. Commit `cebc1d34e` taught parseqatom() to optimize cases where a branch contains only one, "messy", atom by getting rid of excess subRE nodes. The way we really should do that is to keep the subRE built for the "messy" child atom; but to avoid changing parseqatom's nominal API, I made it delete that node after copying its fields to the outer subRE made by parsebranch(). It seems that that actually worked at the time; but it became dangerous after `ea1268f63`, because that later commit allowed the lower invocation of parse() to return a subRE that was also pointed to by some v->subs[] entry. This meant we could wind up with a dangling pointer in v->subs[], allowing a later backref to misbehave, but only if that subRE struct had been reused in between. So the damage seems confined to cases like '((...))...(...\2'. To fix, do what I should have done before and modify parseqatom's API to make it possible for it to remove the caller's subRE instead of the callee's. That's safer because we know that subRE isn't complete yet, so noplace else will have a pointer to it. Per report from Mark Dilger. Back-patch to v14 where the problematic patches came in. Discussion: https://postgr.es/m/0203588E-E609-43AF-9F4F-902854231EE7@enterprisedb.com		2021-08-07 22:27:13 -04:00
..
authentication	Initial pgindent and pgperltidy run for v14.	2021-05-12 13:14:10 -04:00
examples	libpq: Remove deprecated connection parameters authtype and tty	2021-03-09 15:01:22 +01:00
isolation	Rename debug_invalidate_system_caches_always to debug_discard_caches.	2021-07-13 15:01:01 -04:00
kerberos	Initial pgindent and pgperltidy run for v14.	2021-05-12 13:14:10 -04:00
ldap	Add a copyright notice to perl files lacking one.	2021-05-07 10:56:14 -04:00
locale	Remove extraneous newlines added by perl copyright patch	2021-05-07 11:37:37 -04:00
mb	Fix MB regression tests for WAL-logging of hash indexes.	2017-03-15 07:25:36 -04:00
modules	Fix use-after-free issue in regexp engine.	2021-08-07 22:27:13 -04:00
perl	Make TestLib::perl2host more consistent and robust	2021-07-29 12:16:50 -04:00
recovery	Close yet another race condition in replication slot test code	2021-07-29 17:09:06 -04:00
regress	Really fix the ambiguity in REFRESH MATERIALIZED VIEW CONCURRENTLY.	2021-08-07 13:29:32 -04:00
ssl	Initial pgindent and pgperltidy run for v14.	2021-05-12 13:14:10 -04:00
subscription	Pre branch pgindent / pgperltidy run	2021-06-28 11:05:54 -04:00
Makefile	Revert per-index collation version tracking feature.	2021-05-07 21:10:11 +12:00
README	Remove the option to build thread_test.c outside configure.	2020-10-21 12:08:48 -04:00

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.

authentication/
  Tests for authentication (but see also below)

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

isolation/
  Tests for concurrent behavior at the SQL level

kerberos/
  Tests for Kerberos/GSSAPI authentication and encryption

ldap/
  Tests for LDAP-based authentication

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

subscription/
  Tests for logical replication