This test should now work in any database with UTF8 encoding, regardless
of the database's default locale.  The former restriction was really
"doesn't work if default locale is C", and that was because of not handling
mbstowcs/wcstombs correctly.

This patch is almost entirely cosmetic --- mostly cleaning up a lot of
neglected comments, and fixing code layout problems in places where the
patch made lines too long and then pgindent did weird things with that.
I did find a bug-of-omission in equalTupleDescs().

Also refactor things a little bit so that the same methods for setting
test locale and encoding can be used everywhere.

This adds collation support for columns and domains, a COLLATE clause
to override it per expression, and B-tree index support.

Peter Eisentraut
reviewed by Pavel Stehule, Itagaki Takahiro, Robert Haas, Noah Misch

capitalization.

Instead, run them in the encoding that the locale selects, which is
more representative of real use.

Also document how locale and encoding for regression test runs can be
selected.

The endterm attribute is mainly useful when the toolchain does not support
automatic link target text generation for a particular situation.  In  the
past, this was required by the man page tools for all reference page links,
but that is no longer the case, and it now actually gets in the way of
proper automatic link text generation.  The only remaining use cases are
currently xrefs to refsects.

Test coverage support now covers the entire source tree, including
contrib, instead of just src/backend.  In a related but independent
development, the commands make coverage and make coverage-html can be run
in any directory.

This turned out to be much easier than feared.  Besides a few ad hoc fixes
to pass the make target down the tree, change all affected makefiles to
list their directories in the SUBDIRS variable, changed from variants like
DIRS and WANTED_DIRS.  MSVC build fix was attempted as well.

and SQL).

speak in tongues and mess up the regression test diffs.

presumably designed, but didn't act).  This allows running the temp install
tests in a non-C locale, thus exercising users' real environments better.
Document how to change locales for test runs.

chapter.

Author: Michelle Caisse <Michelle.Caisse@Sun.COM>

"make all", and then reference them there during the actual tests.  This
makes the handling of these files more parallel to that of regress.so,
and in particular simplifies use of the regression tests outside the
original build tree.  The PGDG and Red Hat RPMs have been doing this via
patches for a very long time.  Inclusion of the change in core was requested
by Jørgen Austvik of Sun, and I can't see any reason not to.

I attempted to fix the MSVC scripts for this too, but they may need
further tweaking ...

appropriate.

Standard English uses "may", "can", and "might" in different ways:

        may - permission, "You may borrow my rake."

        can - ability, "I can lift that log."

        might - possibility, "It might rain today."

Unfortunately, in conversational English, their use is often mixed, as
in, "You may use this variable to do X", when in fact, "can" is a better
choice.  Similarly, "It may crash" is better stated, "It might crash".

Also update two error messages mentioned in the documenation to match.

just exec instead of creating a subprocess.  This reduces process usage
from four processes per parallel test to two.  I have no idea whether
a comparable optimization is possible or useful in the Windows port.

This allows it to be used on Windows without installing mingw
(though you do still need 'diff'), and opens the door to future
improvements such as message localization.
Magnus Hagander and Tom Lane.

symlink is kept for now for compatibility.  To call single-user mode, use
postgres --single.

generated text files.  Fix build of that file, too.

Put the text files in the right place during make dist, so there are no
extra manual steps required anymore.

and DELETE. If specified, the alias must be used instead of the full
table name. Also, the alias currently cannot be used in the SET clause
of UPDATE.

Patch from Atsushi Ogawa, various editorialization by Neil Conway.
Along the way, make the rowtypes regression test pass if add_missing_from
is enabled, and add a new (skeletal) regression test for DELETE.

possibility of a failure due to stack overflow when max_stack_depth is
not set properly for the platform.

for the PL languages and for contrib.

fails near DST transition days, so remove the advice about that testing
problem.  Also improve the description of variant-comparison-file
selection.

by non-default planner parameter settings.

problems.

output.

to support PST8PDT time zone for the regression tests.

and should do now that we control our own destiny for timezone handling,
but this commit gets the bulk of the picayune diffs in place.
Magnus Hagander and Tom Lane.