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Dean Rasheed f499d2b20b Guard against overflow in interval_mul() and interval_div(). 
Commits 146604ec43 and a898b409f6 added overflow checks to
interval_mul(), but not to interval_div(), which contains almost
identical code, and so is susceptible to the same kinds of
overflows. In addition, those checks did not catch all possible
overflow conditions.

Add additional checks to the "cascade down" code in interval_mul(),
and copy all the overflow checks over to the corresponding code in
interval_div(), so that they both generate "interval out of range"
errors, rather than returning bogus results.

Given that these errors are relatively easy to hit, back-patch to all
supported branches.

Per bug #18200 from Alexander Lakhin, and subsequent investigation.

Discussion: https://postgr.es/m/18200-5ea288c7b2d504b1%40postgresql.org
2023-11-18 14:50:00 +00:00
..
authentication Make new authentication test case more robust. 2020-09-04 21:01:59 -04:00
examples Update copyright for 2019 2019-01-02 12:44:25 -05:00
isolation Remove test from commit fa2e874946. 2023-08-10 10:27:00 -07:00
kerberos Adjust kerberos and ldap tests for Homebrew on ARM 2023-07-04 11:25:57 +02:00
ldap Adjust kerberos and ldap tests for Homebrew on ARM 2023-07-04 11:25:57 +02:00
locale Make sort-test.py Python 3 compatible 2019-01-04 11:23:24 +01:00
mb Fix MB regression tests for WAL-logging of hash indexes. 2017-03-15 07:25:36 -04:00
modules Allow new role 'regress_dump_login_role' to log in under SSPI. 2023-11-14 00:31:39 -05:00
perl Don't trust unvalidated xl_tot_len. 2023-09-23 10:29:56 +12:00
recovery Fix edge-case for xl_tot_len broken by bae868ca. 2023-09-26 10:59:49 +13:00
regress Guard against overflow in interval_mul() and interval_div(). 2023-11-18 14:50:00 +00:00
ssl Backpatch OpenSSL 3.0.0 compatibility in tests 2023-02-08 16:56:53 -05:00
subscription Ignore generated columns during apply of update/delete. 2023-03-23 11:08:38 +05:30
thread Ensure link commands list *.o files before LDFLAGS. 2019-01-02 13:57:54 -05:00
Makefile Revert "Allow on-line enabling and disabling of data checksums" 2018-04-09 19:03:42 +02:00
README Add TAP tests for password-based authentication methods. 2017-03-17 11:34:16 +02:00

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

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