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Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 8a42b829ebeb8b22db0e3258ec02137f8840b960
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part of revert "Add DECLARE STATEMENT support to ECPG."
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This reverts commit bd7c95f0c1a38becffceb3ea7234d57167f6d4bf,
along with assorted follow-on fixes. There are some questions
about the definition and implementation of that statement, and
we don't have time to resolve them before v13 release. Rather
than ship the feature and then have backwards-compatibility
concerns constraining any redesign, let's remove it for now
and try again later.
Discussion: https://postgr.es/m/TY2PR01MB2443EC8286995378AEB7D9F8F5B10@TY2PR01MB2443.jpnprd01.prod.outlook.com
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The major version of ecpglib was changed in
bd7c95f0c1a38becffceb3ea7234d57167f6d4bf, apparently without
justification. Revert this, since nothing has changed in this library
except some added functions.
Discussion: https://www.postgresql.org/message-id/flat/48ee4c56-e1df-b39d-2cad-c7d80b120eb5%402ndquadrant.com
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Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 2808de890d4be52a0a82fb3bd84ea7998c6f5101
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Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: e255bc8b15d0f173f9de9048d3d6ad6e40085a48
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second time.
Author: "Zhang, Jie" <zhangjie2@cn.fujitsu.com>
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The date/time values 'current', 'invalid', and 'undefined' were
removed a long time ago, but the code still contains explicit error
handling for the transition. To simplify the code and avoid having to
handle these values everywhere, just remove the recognition of these
tokens altogether now.
Reviewed-by: Michael Paquier <michael@paquier.xyz>
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Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 1a710c413ce4c4cd081843e563cde256bb95f490
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Discussion: https://postgr.es/m/20190612184527.GA24266@alvherre.pgsql
Reviewed-by: Michaël Paquier
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The documentation used "nonexistent" exclusively, and the source tree
used it three times as often as "nonexistant".
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Declaring a function "inline" still doesn't work with Windows compilers
(C99? what's that?), unless the macro provided by pg_config.h is
in-scope, which it is not in our ECPG test programs. So the workaround
I tried to use in commit 7640f9312 doesn't work for Windows. Revert
the change in printf_hack.h, and instead just blacklist that file
in cpluspluscheck --- since it's a not-installed test file, we don't
really need to verify its C++ cleanliness anyway.
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Mea culpa for not rechecking check-world at the last step :-(
Per buildfarm.
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There's probably no need to back-patch this, since it seems unlikely
that anybody would be inserting C++ code into ecpg's preprocessor.
Discussion: https://postgr.es/m/b517ec3918d645eb950505eac8dd434e@gaz-is.ru
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We have a longstanding project convention that all .h files should
be includable with no prerequisites other than postgres.h. This is
tested/relied-on by cpluspluscheck. However, cpluspluscheck has not
historically been applied to most headers outside the src/include
tree, with the predictable consequence that some of them don't work.
Fix that, usually by adding missing #include dependencies.
The change in printf_hack.h might require some explanation: without
it, my C++ compiler whines that the function is unused. There's
not so many call sites that "inline" is going to cost much, and
besides all the callers are in test code that we really don't care
about the size of.
There's no actual bugs being fixed here, so I see no need to back-patch.
Discussion: https://postgr.es/m/b517ec3918d645eb950505eac8dd434e@gaz-is.ru
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ecpg_build_params() failed to check for ecpg_alloc failure in one
newly-added code path, and leaked a temporary string in another path.
Errors in commit a1dc6ab46, spotted by Coverity.
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ecpg_register_prepared_stmt() is pretty obviously checking the wrong
variable while trying to detect malloc failure. Error in commit
a1dc6ab46, spotted by Coverity.
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Make all the perl code look nice, too (for some value of "nice").
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Switch to 2.1 version of pg_bsd_indent. This formats
multiline function declarations "correctly", that is with
additional lines of parameter declarations indented to match
where the first line's left parenthesis is.
Discussion: https://postgr.es/m/CAEepm=0P3FeTXRcU5B2W3jv3PgRVZ-kGUXLGfd42FFhUROO3ug@mail.gmail.com
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This is still using the 2.0 version of pg_bsd_indent.
I thought it would be good to commit this separately,
so as to document the differences between 2.0 and 2.1 behavior.
Discussion: https://postgr.es/m/16296.1558103386@sss.pgh.pa.us
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Oversight in commit a1dc6ab465986a62b308dd1bb8da316b5ed9685a.
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Besides implementing the new statement this change fix some issues with the
parsing of PREPARE and EXECUTE statements. The different forms of these
statements are now all handled in a ujnified way.
Author: Matsumura-san <matsumura.ryo@jp.fujitsu.com>
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Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: a20bf6b8a5b4e32450967055eb5b07cee4704edd
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The original placement of this module in src/fe_utils/ is ill-considered,
because several src/common/ modules have dependencies on it, meaning that
libpgcommon and libpgfeutils now have mutual dependencies. That makes it
pointless to have distinct libraries at all. The intended design is that
libpgcommon is lower-level than libpgfeutils, so only dependencies from
the latter to the former are acceptable.
We already have the precedent that fe_memutils and a couple of other
modules in src/common/ are frontend-only, so it's not stretching anything
out of whack to treat logging.c as a frontend-only module in src/common/.
To the extent that such modules help provide a common frontend/backend
environment for the rest of common/ to use, it's a reasonable design.
(logging.c does not yet provide an ereport() emulation, but one can
dream.)
Hence, move these files over, and revert basically all of the build-system
changes made by commit cc8d41511. There are no places that need to grow
new dependencies on libpgcommon, further reinforcing the idea that this
is the right solution.
Discussion: https://postgr.es/m/a912ffff-f6e4-778a-c86a-cf5c47a12933@2ndquadrant.com
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Patch by Liu Huailing <liuhuailing@cn.fujitsu.com>
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This unifies the various ad hoc logging (message printing, error
printing) systems used throughout the command-line programs.
Features:
- Program name is automatically prefixed.
- Message string does not end with newline. This removes a common
source of inconsistencies and omissions.
- Additionally, a final newline is automatically stripped, simplifying
use of PQerrorMessage() etc., another common source of mistakes.
- I converted error message strings to use %m where possible.
- As a result of the above several points, more translatable message
strings can be shared between different components and between
frontends and backend, without gratuitous punctuation or whitespace
differences.
- There is support for setting a "log level". This is not meant to be
user-facing, but can be used internally to implement debug or
verbose modes.
- Lazy argument evaluation, so no significant overhead if logging at
some level is disabled.
- Some color in the messages, similar to gcc and clang. Set
PG_COLOR=auto to try it out. Some colors are predefined, but can be
customized by setting PG_COLORS.
- Common files (common/, fe_utils/, etc.) can handle logging much more
simply by just using one API without worrying too much about the
context of the calling program, requiring callbacks, or having to
pass "progname" around everywhere.
- Some programs called setvbuf() to make sure that stderr is
unbuffered, even on Windows. But not all programs did that. This
is now done centrally.
Soft goals:
- Reduces vertical space use and visual complexity of error reporting
in the source code.
- Encourages more deliberate classification of messages. For example,
in some cases it wasn't clear without analyzing the surrounding code
whether a message was meant as an error or just an info.
- Concepts and terms are vaguely aligned with popular logging
frameworks such as log4j and Python logging.
This is all just about printing stuff out. Nothing affects program
flow (e.g., fatal exits). The uses are just too varied to do that.
Some existing code had wrappers that do some kind of print-and-exit,
and I adapted those.
I tried to keep the output mostly the same, but there is a lot of
historical baggage to unwind and special cases to consider, and I
might not always have succeeded. One significant change is that
pg_rewind used to write all error messages to stdout. That is now
changed to stderr.
Reviewed-by: Donald Dong <xdong@csumb.edu>
Reviewed-by: Arthur Zakirov <a.zakirov@postgrespro.ru>
Discussion: https://www.postgresql.org/message-id/flat/6a609b43-4f57-7348-6480-bd022f924310@2ndquadrant.com
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Fixed-by: Kuroda-san <kuroda.hayato@jp.fujitsu.com>
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shorter than 2 characters.
Patch by: "Wu, Fei" <wufei.fnst@cn.fujitsu.com>
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opened in a prepared statement.
Patch by: "Kuroda, Hayato" <kuroda.hayato@jp.fujitsu.com>
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While not really a problem it's easier to run tools like valgrind against it
when fixed.
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The Bison documentation clearly states that a semicolon is required
after every grammar rule, and our scripts that generate ecpg's
grammar from the backend's implicitly assumed this is true. But it
turns out that only ancient versions of Bison actually enforce that.
There have been a couple of rules without trailing semicolons in
gram.y for some time, and as a consequence, ecpg's grammar was faulty
and produced wrong output for the affected statements.
To fix, add the missing semis, and add some cross-checks to ecpg's
scripts so that they'll bleat if we mess this up again.
The cases that were broken were:
* "SET variable = DEFAULT" (but not "SET variable TO DEFAULT"),
as well as allied syntaxes such as ALTER SYSTEM SET ... DEFAULT.
These produced syntactically invalid output that the server
would reject.
* Multiple type names in DROP TYPE/DOMAIN commands. Only the
first type name would be listed in the emitted command.
Per report from Daisuke Higuchi. Back-patch to all supported versions.
Discussion: https://postgr.es/m/1803D792815FC24D871C00D17AE95905DB51CE@g01jpexmbkw24
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New code introduced in 050710b36964dee7e1b2bf6b5ef00041fd5d2787. The
lack of const is not currently a compiler warning, but it's nice to
have for consistency with surrounding code.
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Oversights in commits 050710b36 and e81f0e311.
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Author: Higuchi-san ("Higuchi, Daisuke" <higuchi.daisuke@jp.fujitsu.com>)
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So far ECPG programs had to treat binary data for bytea column as 'char' type.
But this meant converting from/to escaped format with PQunescapeBytea/
PQescapeBytea() and therefore forcing users to add unnecessary code and cost
for the conversion in runtime. By adding a dedicated datatype for bytea most of
this special handling is no longer needed.
Author: Matsumura-san ("Matsumura, Ryo" <matsumura.ryo@jp.fujitsu.com>)
Discussion: https://postgr.es/m/flat/03040DFF97E6E54E88D3BFEE5F5480F737A141F9@G01JPEXMBYT04
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DECLARE STATEMENT is a statement that lets users declare an identifier
pointing at a connection. This identifier will be used in other embedded
dynamic SQL statement such as PREPARE, EXECUTE, DECLARE CURSOR and so on.
When connecting to a non-default connection, the AT clause can be used in
a DECLARE STATEMENT once and is no longer needed in every dynamic SQL
statement. This makes ECPG applications easier and more efficient. Moreover,
writing code without designating connection explicitly improves portability.
Authors: Ideriha-san ("Ideriha, Takeshi" <ideriha.takeshi@jp.fujitsu.com>)
Kuroda-san ("Kuroda, Hayato" <kuroda.hayato@jp.fujitsu.com>)
Discussion: https://postgr.es/m4E72940DA2BF16479384A86D54D0988A565669DF@G01JPEXMBKW04
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The function called can result in an out of memory error that subsequently was
disregarded. Instead it should set the appropriate SQL error variables and be
checked by whatever whenever statement is defined.
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during development. Test cases themselves should not hang or segfault.
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This essentially reverts commits a772624b1 and 04fbe0e45, which
added "_configthreadlocale(_ENABLE_PER_THREAD_LOCALE)" calls to the
thread-related ecpg test programs. That was nothing but a hack,
because we shouldn't expect that ecpg-using applications have
done that for us; and now that we've inserted such calls into
ecpglib, the tests should still pass without it.
(If they don't, it would be good to know that.)
HEAD only; there seems no big need to change this in the
back branches.
Discussion: https://postgr.es/m/22937.1548307384@sss.pgh.pa.us
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A report from Andrew Dunstan showed that an ecpglib breakage that
causes repeated query failures could lead to infinite loops in some
ecpg test scripts, because they contain "while(1)" loops with no
exit condition other than successful test completion. That might
be all right for manual testing, but it seems entirely unacceptable
for automated test environments such as our buildfarm. We don't
want buildfarm owners to have to intervene manually when a test
goes wrong.
To fix, just change all those while(1) loops to exit after at most
100 iterations (which is more than any of them expect to iterate).
This seems sufficient since we'd see discrepancies in the test output
if any loop executed the wrong number of times.
I tested this by dint of intentionally breaking ecpg_do_prologue
to always fail, and verifying that the tests still got to completion.
Back-patch to all supported branches, since the whole point of this
exercise is to protect the buildfarm against future mistakes.
Discussion: https://postgr.es/m/18693.1548302004@sss.pgh.pa.us
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Apparently, some builds of MinGW contain a version of
_configthreadlocale() that always returns -1, indicating failure.
Rather than treating that as a curl-up-and-die condition, soldier on
as though the function didn't exist. This leaves us without thread
safety on such MinGW versions, but we didn't have it anyway.
Discussion: https://postgr.es/m/d06a16bc-52d6-9f0d-2379-21242d7dbe81@2ndQuadrant.com
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While Windows (allegedly) has _configthreadlocale() pretty far back,
it seems MinGW didn't acquire support for that till more recently.
Fortunately, we can use an autoconf probe on that toolchain,
instead of guessing whether it's there. (Hm, I wonder whether Cygwin
will need this also.)
Per buildfarm.
Discussion: https://postgr.es/m/20190121193512.tdmcnic2yjxlufaw@alap3.anarazel.de
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ecpglib attempts to force the LC_NUMERIC locale to "C" while reading
server output, to avoid problems with strtod() and related functions.
Historically it's just issued setlocale() calls to do that, but that
has major problems if we're in a threaded application. setlocale()
itself is not required by POSIX to be thread-safe (and indeed is not,
on recent OpenBSD). Moreover, its effects are process-wide, so that
we could cause unexpected results in other threads, or another thread
could change our setting.
On platforms having uselocale(), which is required by POSIX:2008,
we can avoid these problems by using uselocale() instead. Windows
goes its own way as usual, but we can make it safe by using
_configthreadlocale(). Platforms having neither continue to use the
old code, but that should be pretty much nobody among current systems.
This should get back-patched, but let's see what the buildfarm
thinks of it first.
Michael Meskes and Tom Lane; thanks also to Takayuki Tsunakawa.
Discussion: https://postgr.es/m/31420.1547783697@sss.pgh.pa.us
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Extends the COPY FROM command with a WHERE condition, which allows doing
various types of filtering while importing the data (random sampling,
condition on a data column, etc.). Until now such filtering required
either preprocessing of the input data, or importing all data and then
filtering in the database. COPY FROM ... WHERE is an easy-to-use and
low-overhead alternative for most simple cases.
Author: Surafel Temesgen
Reviewed-by: Tomas Vondra, Masahiko Sawada, Lim Myungkyu
Discussion: https://www.postgresql.org/message-id/flat/CALAY4q_DdpWDuB5-Zyi-oTtO2uSk8pmy+dupiRe3AvAc++1imA@mail.gmail.com
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