postgresql

mirror of https://git.postgresql.org/git/postgresql.git synced 2024-10-02 01:11:17 +02:00

History

Tom Lane a4c35ea1c2 Improve parser's and planner's handling of set-returning functions. Teach the parser to reject misplaced set-returning functions during parse analysis using p_expr_kind, in much the same way as we do for aggregates and window functions (cf commit `eaccfded9`). While this isn't complete (it misses nesting-based restrictions), it's much better than the previous error reporting for such cases, and it allows elimination of assorted ad-hoc expression_returns_set() error checks. We could add nesting checks later if it seems important to catch all cases at parse time. There is one case the parser will now throw error for although previous versions allowed it, which is SRFs in the tlist of an UPDATE. That never behaved sensibly (since it's ill-defined which generated row should be used to perform the update) and it's hard to see why it should not be treated as an error. It's a release-note-worthy change though. Also, add a new Query field hasTargetSRFs reporting whether there are any SRFs in the targetlist (including GROUP BY/ORDER BY expressions). The parser can now set that basically for free during parse analysis, and we can use it in a number of places to avoid expression_returns_set searches. (There will be more such checks soon.) In some places, this allows decontorting the logic since it's no longer expensive to check for SRFs in the tlist --- so I made the checks parallel to the handling of hasAggs/hasWindowFuncs wherever it seemed appropriate. catversion bump because adding a Query field changes stored rules. Andres Freund and Tom Lane Discussion: <24639.1473782855@sss.pgh.pa.us>		2016-09-13 13:54:24 -04:00
..
examples
isolation	Fix a bunch of places that called malloc and friends with no NULL check.	2016-08-30 18:22:43 -04:00
locale
mb	Revert "Fix broken multibyte regression tests."	2016-01-26 08:29:15 +09:00
modules	Fix two src/test/modules Makefiles	2016-09-08 14:39:05 -03:00
perl	Final pgindent + perltidy run for 9.6.	2016-08-15 13:42:51 -04:00
recovery	Dirty replication slots when using sql interface	2016-09-05 09:44:38 +01:00
regress	Improve parser's and planner's handling of set-returning functions.	2016-09-13 13:54:24 -04:00
ssl	Clean the last few TAP suite tmp_check directories.	2016-02-24 23:41:54 -05:00
thread
Makefile	Add a test framework for recovery	2016-02-26 16:13:30 -03:00
README	Minor tweaks for new src/test/recovery	2016-02-29 18:16:59 -03:00

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.

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

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