postgres

History

Tomas Vondra e4deae7396 Fix handling of NULLs in MCV items and constants There were two issues in how the extended statistics handled NULL values in opclauses. Firstly, the code was oblivious to the possibility that Const may be NULL (constisnull=true) in which case the constvalue is undefined. We need to treat this as a mismatch, and not call the proc. Secondly, the MCV item itself may contain NULL values too - the code already did check that, and updated the match bitmap accordingly, but failed to ensure we won't call the operator procedure anyway. It did work for AND-clauses, because in that case false in the bitmap stops evaluation of further clauses. But for OR-clauses ir was not easy to get incorrect estimates or even trigger a crash. This fixes both issues by extending the existing check so that it looks at constisnull too, and making sure it skips calling the procedure. Discussion: https://postgr.es/m/8736jdhbhc.fsf%40ansel.ydns.eu		7 years ago
..
authentication	Update copyright for 2019	7 years ago
examples	Update copyright for 2019	7 years ago
isolation	Avoid spurious deadlocks when upgrading a tuple lock	7 years ago
kerberos	GSSAPI: Improve documentation and tests	7 years ago
ldap	Add MacPorts support to src/test/ldap tests.	7 years ago
locale	Make sort-test.py Python 3 compatible	7 years ago
mb	…
modules	Move rolenames test out of the core regression tests.	7 years ago
perl	Fix inconsistencies and typos in the tree	7 years ago
recovery	Consolidate methods for translating a Perl path to a Windows path.	7 years ago
regress	Fix handling of NULLs in MCV items and constants	7 years ago
ssl	Initial pgperltidy run for v12.	7 years ago
subscription	Initial pgperltidy run for v12.	7 years ago
thread	Ensure link commands list *.o files before LDFLAGS.	7 years ago
Makefile	…
README	…

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

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

subscription/
  Tests for logical replication

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