postgresql

mirror of https://git.postgresql.org/git/postgresql.git synced 2024-08-19 18:53:23 +02:00

History

Tom Lane 78a843f119 Improve regex compiler's arc moving/copying logic. The functions moveins(), copyins(), moveouts(), copyouts() are required to preserve the invariant that there are no duplicate arcs in the regex's NFA. Spencer's original implementation of them was O(N^2) since it checked separately for a match to each source arc. In commit `579840ca0` I improved that by adding sort/merge logic to be used if more than a few arcs are to be moved/copied. However, I now realize that that missed a bet. At many call sites, the target state is newly made and cannot have any existing in-arcs (respectively out-arcs) that could be duplicates. So spending any cycles at all on checking for duplicates is wasted effort; in these cases we can just blindly move/copy all the source arcs. Add code paths to do that. It turns out that for copyins()/copyouts(), all the call sites have this property, making all the "improved" logic in them flat out unreachable. Perhaps we'll need the full capability again someday, so I just #ifdef'd those paths out rather than removing them entirely. In passing, add a few test cases to improve code coverage in this area as well as in regc_locale.c/regc_pg_locale.c. Discussion: https://postgr.es/m/810272.1629064063@sss.pgh.pa.us		2021-08-17 12:00:02 -04:00
..
authentication	Unify PostgresNode's new() and get_new_node() methods	2021-07-29 05:58:08 -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	Remove the last vestiges of Exporter from PostgresNode	2021-07-29 05:58:08 -04:00
ldap	Remove the last vestiges of Exporter from PostgresNode	2021-07-29 05:58:08 -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	Improve regex compiler's arc moving/copying logic.	2021-08-17 12:00:02 -04:00
perl	Make TestLib::perl2host more consistent and robust	2021-07-29 12:15:03 -04:00
recovery	Close yet another race condition in replication slot test code	2021-07-29 17:09:06 -04:00
regress	Let regexp_replace() make use of REG_NOSUB when feasible.	2021-08-09 20:53:25 -04:00
ssl	Remove unused regression test certificate server-ss	2021-08-10 11:15:02 +02:00
subscription	Fix typo in 022_twophase_cascade.pl.	2021-08-09 08:58:38 +05:30
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