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This is mainly to suppress "uninitialized variable" warnings from very
recent versions of gcc. But it seems like a good robustness thing anyway,
not to mention that we might someday decide to support 6-byte UTF8.
Per report from Karol Trzcionka. No back-patch since there's no reason
at the moment to think this is more than cosmetic.
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GNU gettext selects a default encoding for the messages it emits in a
platform-specific manner; it uses the Windows ANSI code page on Windows
and follows LC_CTYPE on other platforms. This is inconvenient for
PostgreSQL server processes, so realize consistent cross-platform
behavior by calling bind_textdomain_codeset() on Windows each time we
permanently change LC_CTYPE. This primarily affects SQL_ASCII databases
and processes like the postmaster that do not attach to a database,
making their behavior consistent with PostgreSQL on non-Windows
platforms. Messages from SQL_ASCII databases use the encoding implied
by the database LC_CTYPE, and messages from non-database processes use
LC_CTYPE from the postmaster system environment. PlatformEncoding
becomes unused, so remove it.
Make write_console() prefer WriteConsoleW() to write() regardless of the
encodings in use. In this situation, write() will invariably mishandle
non-ASCII characters.
elog.c has assumed that messages conform to the database encoding.
While usually true, this does not hold for SQL_ASCII and MULE_INTERNAL.
Introduce MessageEncoding to track the actual encoding of message text.
The present consumers are Windows-specific code for converting messages
to UTF16 for use in system interfaces. This fixes the appearance in
Windows event logs and consoles of translated messages from SQL_ASCII
processes like the postmaster. Note that SQL_ASCII inherently disclaims
a strong notion of encoding, so non-ASCII byte sequences interpolated
into messages by %s may yet yield a nonsensical message. MULE_INTERNAL
has similar problems at present, albeit for a different reason: its lack
of libiconv support or a conversion to UTF8.
Consequently, one need no longer restart Windows with a different
Windows ANSI code page to broadly test backend logging under a given
language. Changing the user's locale ("Format") is enough. Several
accounts can simultaneously run postmasters under different locales, all
correctly logging localized messages to Windows event logs and consoles.
Alexander Law and Noah Misch
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This is the first run of the Perl-based pgindent script. Also update
pgindent instructions.
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Fully update git head, and update back branches in ./COPYRIGHT and
legal.sgml files.
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Quiet compiler warnings noted by Peter Eisentraut.
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port. The last use was QNX, per Peter Eisentraut.
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Also some cosmetic improvements for wchar-to-mblen patch.
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Bug spotted by Tom Lane.
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Run on HEAD and 9.2.
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This is infrastructure for Alexander Korotkov's work on indexing regular
expression searches.
Alexander Korotkov, with a bit of further hackery on the MULE conversion
by me
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This commit improves the comments in pg_wchar.h and creates #define symbols
for some formerly hard-coded values. No substantive code changes.
Tatsuo Ishii and Tom Lane
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commit-fest.
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Josh Kupershmidt
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Make sure that it considers all the possibilities that the old code did,
instead of trying only one possibility per character position. To keep the
runtime in bounds, instead tweak the character incrementers to not try
every possible multibyte character code. Remove unnecessary logic to
restore the old character value on failure. Additional comment and
formatting cleanup.
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This infrastructure doesn't in any way guarantee that the character
we produce will sort before the one we incremented; but it does at least
make it much more likely that we'll end up with something that is a valid
character, which improves our chances.
Kyotaro Horiguchi, with various adjustments by me.
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This addresses only those cases that are easy to fix by adding or
moving a const qualifier or removing an unnecessary cast. There are
many more complicated cases remaining.
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The code in shift_jis_20042euc_jis_2004() would fetch two bytes even when
only one remained in the string. Since conversion functions aren't
supposed to assume null-terminated input, this poses a small risk of
fetching past the end of memory and incurring SIGSEGV. No such crash has
been identified in the field, but we've certainly seen the equivalent
happen in other code paths, so patch this one all the way back.
Report and patch by Noah Misch.
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It used to say
ERROR: invalid byte sequence for encoding "UTF8": 0xdb24
Change this to
ERROR: invalid byte sequence for encoding "UTF8": 0xdb 0x24
to make it clear that this is a byte sequence and not a code point.
Also fix the adjacent "character has no equivalent" message that has
the same issue.
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These functions should take a pg_locale_t, not a collation OID, and should
call mbstowcs_l/wcstombs_l where available. Where those functions are not
available, temporarily select the correct locale with uselocale().
This change removes the bogus assumption that all locales selectable in
a given database have the same wide-character conversion method; in
particular, the collate.linux.utf8 regression test now passes with
LC_CTYPE=C, so long as the database encoding is UTF8.
I decided to move the char2wchar/wchar2char functions out of mbutils.c and
into pg_locale.c, because they work on wchar_t not pg_wchar_t and thus
don't really belong with the mbutils.c functions. Keeping them where they
were would have required importing pg_locale_t into pg_wchar.h somehow,
which did not seem like a good plan.
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Fix crash when releasing duplicate entries in the encoding conversion cache
list, caused by releasing the current entry of the list being chased by
foreach(). We have a standard idiom for handling such cases, but this
loop wasn't using it.
This got broken in my recent rewrite of GUC assign hooks. Not sure how
I missed this when testing the modified code, but I did. Per report from
Peter.
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The previous functions of assign hooks are now split between check hooks
and assign hooks, where the former can fail but the latter shouldn't.
Aside from being conceptually clearer, this approach exposes the
"canonicalized" form of the variable value to guc.c without having to do
an actual assignment. And that lets us fix the problem recently noted by
Bernd Helmle that the auto-tune patch for wal_buffers resulted in bogus
log messages about "parameter "wal_buffers" cannot be changed without
restarting the server". There may be some speed advantage too, because
this design lets hook functions avoid re-parsing variable values when
restoring a previous state after a rollback (they can store a pre-parsed
representation of the value instead). This patch also resolves a
longstanding annoyance about custom error messages from variable assign
hooks: they should modify, not appear separately from, guc.c's own message
about "invalid parameter value".
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File encodings can be specified separately from client encoding.
If not specified, client encoding is used for backward compatibility.
Cases when the encoding doesn't match client encoding are slower
than matched cases because we don't have conversion procs for other
encodings. Performance improvement would be be a future work.
Original patch by Hitoshi Harada, and modified by me.
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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
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We can directly verify the unterminated input with pg_verify_mbstr_len.
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Replace for loops in makefiles with proper dependencies. Parallel
make can now span across directories. Also, make -k and make -q work
properly.
GNU make 3.80 or newer is now required.
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at end of files.
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elsewhere.
Similarly rename the version in mbprint.c, not because this affects anything
but just to keep the two copies in exact sync. There was some discussion of
having only one copy in src/port/ instead, but this function is so small
and unlikely to change that that seems like overkill.
Slightly editorialized version of a patch by Joseph Adams. (The bug-fix
aspect of his patch was applied separately, and back-patched.)
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To do that, replace L'\0' by (WCHAR) 0. Perhaps someday we should teach
pgindent about wide-character literals, but so long as this is the only
use-case in the entire Postgres sources, a workaround seems easier.
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existing *.pl conversion script.
Andreas 'ads' Scherbaum
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The purpose of this change is to eliminate the need for every caller
of SearchSysCache, SearchSysCacheCopy, SearchSysCacheExists,
GetSysCacheOid, and SearchSysCacheList to know the maximum number
of allowable keys for a syscache entry (currently 4). This will
make it far easier to increase the maximum number of keys in a
future release should we choose to do so, and it makes the code
shorter, too.
Design and review by Tom Lane.
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Per discussion, this should result in defaulting to SQL_ASCII encoding.
The original coding could not support that because it conflated selection
of SQL_ASCII encoding with not being able to determine the encoding.
Adjust pg_get_encoding_from_locale()'s API to distinguish these cases,
and fix callers appropriately. Only initdb actually changes behavior,
since the other callers were perfectly content to consider these cases
equivalent.
Per bug #5178 from Boh Yap. Not going to bother back-patching, since
no one has complained before and there's an easy workaround (namely,
specify the encoding you want).
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tarballs under 100 characters. This should avoid failures with certain
untarring tools (WinZip and Midnight Commander have been mentioned as
likely suspects). Per my proposal of yesterday.
catversion bumped since the initial contents of pg_proc change.
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by me.
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as necessary.
Itagaki Takahiro with some changes from me
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Update install-sh to that from Autoconf 2.63, plus our Darwin-specific
changes (which I simplified a bit). install-sh is now able to install
multiple files in one run, so we could simplify our makefiles sometime.
install-sh also now has a -d option to create directories, so we don't need
mkinstalldirs anymore.
Use AC_PROG_MKDIR_P in configure.in, so we can use mkdir -p when available
instead of install-sh -d. For consistency with the rest of the world,
the corresponding make variable has been renamed from $(mkinstalldirs) to
$(MKDIR_P).
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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.
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