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Tom Lane 0e52903128 Simplify loop logic in nodeIncrementalSort.c. 
The inner loop in switchToPresortedPrefixMode() can be implemented
as a conventional integer-counter for() loop, removing a couple of
redundant boolean state variables.  The old logic here was a remnant
of earlier development, but as things now stand there's no reason
for extra complexity.

Also, annotate the test case added by 82e0e2930 to explain why it
manages to hit the corner case fixed in that commit, and add an
EXPLAIN to verify that it's creating an incremental-sort plan.

Back-patch to v13, like the previous patch.

James Coleman and Tom Lane

Discussion: https://postgr.es/m/16846-ae49f51ac379a4cb@postgresql.org
2021-02-15 10:17:58 -05:00
..
authentication Update copyright for 2021 2021-01-02 13:06:25 -05:00
examples Avoid redundantly prefixing PQerrorMessage for a connection failure. 2021-01-22 16:52:31 -05:00
isolation Fix permission checks on constraint violation errors on partitions. 2021-02-08 11:01:51 +02:00
kerberos Don't clobber the calling user's credentials cache in Kerberos test. 2021-01-25 14:53:13 -05:00
ldap Update copyright for 2021 2021-01-02 13:06:25 -05:00
locale Clean up after tests in src/test/locale/. 2020-11-28 16:08:36 -05:00
mb
modules Introduce --with-ssl={openssl} as a configure option 2021-02-01 19:19:44 +09:00
perl Update copyright for 2021 2021-01-02 13:06:25 -05:00
recovery Stabilize timeline switch regression test. 2021-01-14 23:55:33 +09:00
regress Simplify loop logic in nodeIncrementalSort.c. 2021-02-15 10:17:58 -05:00
ssl Introduce --with-ssl={openssl} as a configure option 2021-02-01 19:19:44 +09:00
subscription Allow multiple xacts during table sync in logical replication. 2021-02-12 07:41:51 +05:30
Makefile Introduce --with-ssl={openssl} as a configure option 2021-02-01 19:19:44 +09:00
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