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Also "make reformat-dat-files".
The only change worthy of note is that pgindent messed up the formatting
of launcher.c's struct LogicalRepWorkerId, which led me to notice that
that struct wasn't used at all anymore, so I just took it out.
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Source-Git-URL: git://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 1c361d3ac016b61715d99f2055dee050397e3f13
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Was present in original commit
198b3716dba68544b55cb97bd120738a86d5df2d but apparently never used.
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One more that ought to have been part of
82c3cd974131d7fa1cfcd07cebfb04fffe26ee35.
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Turns out you can specify negative values using plurals:
https://english.stackexchange.com/questions/9735/is-1-followed-by-a-singular-or-plural-noun
so the previous code was correct enough, and consistent with other usage
in our code. Also add comment in the two places where this could be
confused.
Reported-by: Noah Misch
Diagnosed-by: 20210425115726.GA2353095@rfd.leadboat.com
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Instead, put them in via a format placeholder. This reduces the
number of distinct translatable messages and also reduces the chances
of typos during translation. We already did this for the system call
arguments in a number of cases, so this is just the same thing taken a
bit further.
Discussion: https://www.postgresql.org/message-id/flat/92d6f545-5102-65d8-3c87-489f71ea0a37%40enterprisedb.com
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Some code thought this was unsigned, but it's signed int.
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Author: Justin Pryzby
Discussion: https://postgr.es/m/20210416070310.GG3315@telsasoft.com
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A (relatively minor) annoyance of ErrorResponse/NoticeResponse messages
as printed by PQtrace() is that their length might vary when we move
error messages from one source file to another, one function to another,
or even when their location line numbers change number of digits.
To avoid having to adjust expected files for some tests, make the
regress mode of PQtrace() suppress the length word of NoticeResponse and
ErrorResponse messages.
Discussion: https://postgr.es/m/20210402023010.GA13563@alvherre.pgsql
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
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This adds support for writing CREATE FUNCTION and CREATE PROCEDURE
statements for language SQL with a function body that conforms to the
SQL standard and is portable to other implementations.
Instead of the PostgreSQL-specific AS $$ string literal $$ syntax,
this allows writing out the SQL statements making up the body
unquoted, either as a single statement:
CREATE FUNCTION add(a integer, b integer) RETURNS integer
LANGUAGE SQL
RETURN a + b;
or as a block
CREATE PROCEDURE insert_data(a integer, b integer)
LANGUAGE SQL
BEGIN ATOMIC
INSERT INTO tbl VALUES (a);
INSERT INTO tbl VALUES (b);
END;
The function body is parsed at function definition time and stored as
expression nodes in a new pg_proc column prosqlbody. So at run time,
no further parsing is required.
However, this form does not support polymorphic arguments, because
there is no more parse analysis done at call time.
Dependencies between the function and the objects it uses are fully
tracked.
A new RETURN statement is introduced. This can only be used inside
function bodies. Internally, it is treated much like a SELECT
statement.
psql needs some new intelligence to keep track of function body
boundaries so that it doesn't send off statements when it sees
semicolons that are inside a function body.
Tested-by: Jaime Casanova <jcasanov@systemguards.com.ec>
Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/1c11f1eb-f00c-43b7-799d-2d44132c02d7@2ndquadrant.com
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By default, have libpq set the TLS extension "Server Name Indication" (SNI).
This allows an SNI-aware SSL proxy to route connections. (This
requires a proxy that is aware of the PostgreSQL protocol, not just
any SSL proxy.)
In the future, this could also allow the server to use different SSL
certificates for different host specifications. (That would require
new server functionality. This would be the client-side functionality
for that.)
Since SNI makes the host name appear in cleartext in the network
traffic, this might be undesirable in some cases. Therefore, also add
a libpq connection option "sslsni" to turn it off.
Discussion: https://www.postgresql.org/message-id/flat/7289d5eb-62a5-a732-c3b9-438cee2cb709%40enterprisedb.com
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It seems that in MSVC timeval's tv_sec field is of type long.
localtime() takes a time_t pointer. Since long is 32-bit even on 64-bit
builds in MSVC, passing a long pointer instead of the correct time_t
pointer generated a compiler warning. Fix that.
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/CAApHDvoRG25X_=ZCGSPb4KN_j2iu=G2uXsRSg8NBZeuhkOSETg@mail.gmail.com
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Similarly to the cryptohash implementations, this refactors the existing
HMAC code into a single set of APIs that can be plugged with any crypto
libraries PostgreSQL is built with (only OpenSSL currently). If there
is no such libraries, a fallback implementation is available. Those new
APIs are designed similarly to the existing cryptohash layer, so there
is no real new design here, with the same logic around buffer bound
checks and memory handling.
HMAC has a dependency on cryptohashes, so all the cryptohash types
supported by cryptohash{_openssl}.c can be used with HMAC. This
refactoring is an advantage mainly for SCRAM, that included its own
implementation of HMAC with SHA256 without relying on the existing
crypto libraries even if PostgreSQL was built with their support.
This code has been tested on Windows and Linux, with and without
OpenSSL, across all the versions supported on HEAD from 1.1.1 down to
1.0.1. I have also checked that the implementations are working fine
using some sample results, a custom extension of my own, and doing
cross-checks across different major versions with SCRAM with the client
and the backend.
Author: Michael Paquier
Reviewed-by: Bruce Momjian
Discussion: https://postgr.es/m/X9m0nkEJEzIPXjeZ@paquier.xyz
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All other places already use MONTHS_PER_YEAR appropriately.
Backpatch-through: 9.6
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It's misplaced there -- it's not libpq's output stream to tweak in that
way. In particular, POSIX says that it has to be called before any
other operation on the file, so if a stream previously used by the
calling application, bad things may happen.
Put setvbuf() in libpq_pipeline for good measure.
Also, reduce fopen(..., "w+") to just fopen(..., "w") in
libpq_pipeline.c. It's not clear that this fixes anything, but we don't
use w+ anywhere.
Per complaints from Tom Lane.
Discussion: https://postgr.es/m/3337422.1617229905@sss.pgh.pa.us
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Failing to do this can cause a crash, and I suspect is what has happened
with a buildfarm member reporting mysterious failures.
This is an ancient bug, but I'm not backpatching since evidently nobody
cares about PQtrace in older releases.
Discussion: https://postgr.es/m/3333908.1617227066@sss.pgh.pa.us
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We must cast the arguments of <ctype.h> functions to unsigned
char to avoid problems where char is signed.
Speaking of which, considering that this *is* a <ctype.h> function,
it's rather remarkable that we aren't seeing more complaints about
not having included that header.
Per buildfarm.
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Remove confusion between time_t and pg_time_t; neither
gettimeofday() nor localtime() deal in the latter.
libpq indeed has no business using <pgtime.h> at all.
Use snprintf not sprintf, to ensure we can't overrun the
supplied buffer. (Unlikely, but let's be safe.)
Per buildfarm.
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Transform the PQtrace output format from its ancient (and mostly
useless) byte-level output format to a logical-message-level output,
making it much more usable. This implementation allows the printing
code to be written (as it indeed was) by looking at the protocol
documentation, which gives more confidence that the three (docs, trace
code and actual code) actually match.
Author: 岩田 彩 (Aya Iwata) <iwata.aya@fujitsu.com>
Reviewed-by: 綱川 貴之 (Takayuki Tsunakawa) <tsunakawa.takay@fujitsu.com>
Reviewed-by: Kirk Jamison <k.jamison@fujitsu.com>
Reviewed-by: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: 黒田 隼人 (Hayato Kuroda) <kuroda.hayato@fujitsu.com>
Reviewed-by: "Nagaura, Ryohei" <nagaura.ryohei@jp.fujitsu.com>
Reviewed-by: Ryo Matsumura <matsumura.ryo@fujitsu.com>
Reviewed-by: Greg Nancarrow <gregn4422@gmail.com>
Reviewed-by: Jim Doty <jdoty@pivotal.io>
Reviewed-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/71E660EB361DF14299875B198D4CE5423DE3FBA4@g01jpexmbkw25
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This outputs "-1 year", not "-1 years".
Reported-by: neverov.max@gmail.com
Bug: 16939
Discussion: https://postgr.es/m/16939-cceeb03fb72736ee@postgresql.org
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This command declares a SQL identifier for a SQL statement to be used in other
embedded SQL statements. The identifier is linked to a connection.
Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Shawn Wang <shawn.wang.pg@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/TY2PR01MB24438A52DB04E71D0E501452F5630@TY2PR01MB2443.jpnprd01.prod.outlook.com
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My oversight in commit 9aa491abbf07.
Per coverity.
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Pipeline mode in libpq lets an application avoid the Sync messages in
the FE/BE protocol that are implicit in the old libpq API after each
query. The application can then insert Sync at its leisure with a new
libpq function PQpipelineSync. This can lead to substantial reductions
in query latency.
Co-authored-by: Craig Ringer <craig.ringer@enterprisedb.com>
Co-authored-by: Matthieu Garrigues <matthieu.garrigues@gmail.com>
Co-authored-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Aya Iwata <iwata.aya@jp.fujitsu.com>
Reviewed-by: Daniel Vérité <daniel@manitou-mail.org>
Reviewed-by: David G. Johnston <david.g.johnston@gmail.com>
Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Kirk Jamison <k.jamison@fujitsu.com>
Reviewed-by: Michael Paquier <michael.paquier@gmail.com>
Reviewed-by: Nikhil Sontakke <nikhils@2ndquadrant.com>
Reviewed-by: Vaishnavi Prabakaran <VaishnaviP@fast.au.fujitsu.com>
Reviewed-by: Zhihong Yu <zyu@yugabyte.com>
Discussion: https://postgr.es/m/CAMsr+YFUjJytRyV4J-16bEoiZyH=4nj+sQ7JP9ajwz=B4dMMZw@mail.gmail.com
Discussion: https://postgr.es/m/CAJkzx4T5E-2cQe3dtv2R78dYFvz+in8PY7A8MArvLhs_pg75gg@mail.gmail.com
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Commit 92785dac2 copied some logic related to advancement of inStart
from pqParseInput3 into getRowDescriptions and getAnotherTuple,
because it wanted to allow user-defined row processor callbacks to
potentially longjmp out of the library, and inStart would have to be
updated before that happened to avoid an infinite loop. We later
decided that that API was impossibly fragile and reverted it, but
we didn't undo all of the related code changes, and this bit of
messiness survived. Undo it now so that there's just one place in
pqParseInput3's processing where inStart is advanced; this will
simplify addition of better tracing support.
getParamDescriptions had grown similar processing somewhere along
the way (not in 92785dac2; I didn't track down just when), but it's
actually buggy because its handling of corrupt-message cases seems to
have been copied from the v2 logic where we lacked a known message
length. The cases where we "goto not_enough_data" should not simply
return EOF, because then we won't consume the message, potentially
creating an infinite loop. That situation now represents a
definitively corrupt message, and we should report it as such.
Although no field reports of getParamDescriptions getting stuck in
a loop have been seen, it seems appropriate to back-patch that fix.
I chose to back-patch all of this to keep the logic looking more alike
in supported branches.
Discussion: https://postgr.es/m/2217283.1615411989@sss.pgh.pa.us
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Based on an analysis of the OpenSSL code with Jacob, moving to EVP for
the cryptohash computations makes necessary the setup of the libcrypto
callbacks that were getting set only for SSL connections, but not for
connections without SSL. Not setting the callbacks makes the use of
threads potentially unsafe for connections calling cryptohashes during
authentication, like MD5 or SCRAM, if a failure happens during a
cryptohash computation. The logic setting the libssl and libcrypto
states is then split into two parts, both using the same locking, with
libcrypto being set up for SSL and non-SSL connections, while SSL
connections set any libssl state afterwards as needed.
Prior to this commit, only SSL connections would have set libcrypto
callbacks that are necessary to ensure a proper thread locking when
using multiple concurrent threads in libpq (ENABLE_THREAD_SAFETY). Note
that this is only required for OpenSSL 1.0.2 and 1.0.1 (oldest version
supported on HEAD), as 1.1.0 has its own internal locking and it has
dropped support for CRYPTO_set_locking_callback().
Tests with up to 300 threads with OpenSSL 1.0.1 and 1.0.2, mixing SSL
and non-SSL connection threads did not show any performance impact after
some micro-benchmarking. pgbench can be used here with -C and a
mostly-empty script (with one \set meta-command for example) to stress
authentication requests, and we have mixed that with some custom
programs for testing.
Reported-by: Jacob Champion
Author: Michael Paquier
Reviewed-by: Jacob Champion
Discussion: https://postgr.es/m/fd3ba610085f1ff54623478cf2f7adf5af193cbb.camel@vmware.com
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This partially reverts 096bbf7 and 9d2d457, undoing the libpq changes as
it could cause breakages in distributions that share one single libpq
version across multiple major versions of Postgres for extensions and
applications linking to that.
Note that the backend is unchanged here, and it still disables SSL
compression while simplifying the underlying catalogs that tracked if
compression was enabled or not for a SSL connection.
Per discussion with Tom Lane and Daniel Gustafsson.
Discussion: https://postgr.es/m/YEbq15JKJwIX+S6m@paquier.xyz
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The authtype parameter was deprecated and made inactive in commit
d5bbe2aca55bc8, but the environment variable was left defined and thus
tested with a getenv call even though the value is of no use. Also,
if it would exist it would be copied but never freed as the cleanup
code had been removed.
tty was deprecated in commit cb7fb3ca958ec8bd5a14e7 but most of the
infrastructure around it remained in place.
Author: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/DDDF36F3-582A-4C02-8598-9B464CC42B34@yesql.se
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Per buildfarm member crake, any servers including a postgres_fdw server
with this option set would fail to do a pg_upgrade properly as the
option got hidden in f9264d1 by becoming a debug option, making the
restore of the FDW server fail.
This changes back the option in libpq to be visible, but still inactive
to fix this upgrade issue.
Discussion: https://postgr.es/m/YEbq15JKJwIX+S6m@paquier.xyz
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PostgreSQL disabled compression as of e3bdb2d and the documentation
recommends against using it since. Additionally, SSL compression has
been disabled in OpenSSL since version 1.1.0, and was disabled in many
distributions long before that. The most recent TLS version, TLSv1.3,
disallows compression at the protocol level.
This commit removes the feature itself, removing support for the libpq
parameter sslcompression (parameter still listed for compatibility
reasons with existing connection strings, just ignored), and removes
the equivalent field in pg_stat_ssl and de facto PgBackendSSLStatus.
Note that, on top of removing the ability to activate compression by
configuration, compression is actively disabled in both frontend and
backend to avoid overrides from local configurations.
A TAP test is added for deprecated SSL parameters to check after
backwards compatibility.
Bump catalog version.
Author: Daniel Gustafsson
Reviewed-by: Peter Eisentraut, Magnus Hagander, Michael Paquier
Discussion: https://postgr.es/m/7E384D48-11C5-441B-9EC3-F7DB1F8518F6@yesql.se
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Contrary to what the comment said, the postmaster does in fact end all
its messages in a newline, since server version 7.2. Be tidy and don't
add an extra newline if the error message already has one.
Discussion: https://www.postgresql.org/message-id/CAFBsxsEdgMXc%2BtGfEy9Y41i%3D5pMMjKeH8t8vSAypR3ZnAoQnHg%40mail.gmail.com
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Protocol version 3 was introduced in PostgreSQL 7.4. There shouldn't be
many clients or servers left out there without version 3 support. But as
a courtesy, I kept just enough of the old protocol support that we can
still send the "unsupported protocol version" error in v2 format, so that
old clients can display the message properly. Likewise, libpq still
understands v2 ErrorResponse messages when establishing a connection.
The impetus to do this now is that I'm working on a patch to COPY
FROM, to always prefetch some data. We cannot do that safely with the
old protocol, because it requires parsing the input one byte at a time
to detect the end-of-copy marker.
Reviewed-by: Tom Lane, Alvaro Herrera, John Naylor
Discussion: https://www.postgresql.org/message-id/9ec25819-0a8a-d51a-17dc-4150bb3cca3b%40iki.fi
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In addition to the existing options of "any" and "read-write", we
now support "read-only", "primary", "standby", and "prefer-standby".
"read-write" retains its previous meaning of "transactions are
read-write by default", and "read-only" inverts that. The other
three modes test specifically for hot-standby status, which is not
quite the same thing. (Setting default_transaction_read_only on
a primary server renders it read-only to this logic, but not a
standby.)
Furthermore, if talking to a v14 or later server, no extra network
round trip is needed to detect the session's status; the GUC_REPORT
variables delivered by the server are enough. When talking to an
older server, a SHOW or SELECT query is issued to detect session
read-only-ness or server hot-standby state, as needed.
Haribabu Kommi, Greg Nancarrow, Vignesh C, Tom Lane; reviewed at
various times by Laurenz Albe, Takayuki Tsunakawa, Peter Smith.
Discussion: https://postgr.es/m/CAF3+xM+8-ztOkaV9gHiJ3wfgENTq97QcjXQt+rbFQ6F7oNzt9A@mail.gmail.com
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The portions fixing the documentation are backpatched where needed.
Author: Justin Pryzby
Discussion: https://postgr.es/m/20210210235557.GQ20012@telsasoft.com
backpatch-through: 9.6
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Add another method to specify CRLs, hashed directory method, for both
server and client side. This offers a means for server or libpq to
load only CRLs that are required to verify a certificate. The CRL
directory is specifed by separate GUC variables or connection options
ssl_crl_dir and sslcrldir, alongside the existing ssl_crl_file and
sslcrl, so both methods can be used at the same time.
Author: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/20200731.173911.904649928639357911.horikyota.ntt@gmail.com
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The stanza in ECPGconnect() that intended to allow specification of a
Unix socket directory path in place of a port has never executed since
it was committed, nearly two decades ago; the preceding strrchr()
already found the last colon so there cannot be another one. The lack
of complaints about that is doubtless related to the fact that no
user-facing documentation suggested it was possible.
Rather than try to fix that up, let's just remove the unreachable
code, and instead document the way that does work to write a socket
directory path, namely specifying it as a "host" option.
In support of that, make another pass at clarifying the syntax
documentation for ECPG connection targets, particularly documenting
which things are parsed as identifiers and where to use double quotes.
Rearrange some things that seemed poorly ordered, and fix a couple of
minor doc errors.
Kyotaro Horiguchi, per gripe from Shenhao Wang
(docs changes mostly by me)
Discussion: https://postgr.es/m/ae52a416bbbf459c96bab30b3038e06c@G08CNEXMBPEKD06.g08.fujitsu.local
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This commit makes more generic some comments and code related to the
compilation with OpenSSL and SSL in general to ease the addition of more
SSL implementations in the future. In libpq, some OpenSSL-only code is
moved under USE_OPENSSL and not USE_SSL.
While on it, make a comment more consistent in libpq-fe.h.
Author: Daniel Gustafsson
Discussion: https://postgr.es/m/5382CB4A-9CF3-4145-BA46-C802615935E0@yesql.se
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This is a replacement for the existing --with-openssl, extending the
logic to make easier the addition of new SSL libraries. The grammar is
chosen to be similar to --with-uuid, where multiple values can be
chosen, with "openssl" as the only supported value for now.
The original switch, --with-openssl, is kept for compatibility.
Author: Daniel Gustafsson, Michael Paquier
Reviewed-by: Jacob Champion
Discussion: https://postgr.es/m/FAB21FC8-0F62-434F-AA78-6BD9336D630A@yesql.se
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We had "short *mdy" in the extern declarations, but "short mdy[3]"
in the actual function definitions. Per C99 these are equivalent,
but recent versions of gcc have started to issue warnings about
the inconsistency. Clean it up before the warnings get any more
widespread.
Back-patch, in case anyone wants to build older PG versions with
bleeding-edge compilers.
Discussion: https://postgr.es/m/2401575.1611764534@sss.pgh.pa.us
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Reported-by: Ashutosh Sharma <ashu.coek88@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CAE9k0PkORqHHGKY54-sFyDpP90yAf%2B05Auc4fs9EAn4J%2BuBeUQ%40mail.gmail.com
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I should have updated this in commits 52a10224e and follow-ons,
but I missed it because it's not run by default, and none of the
buildfarm runs it either. Maybe we should try to improve that
situation.
Discussion: https://postgr.es/m/CAH2-Wz=j9SRW=s5BV4-3k+=tr4N3A03in+gTuVA09vNF+-iHjA@mail.gmail.com
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opt_distinct_clause is only used in PLpgSQL_Expr, which ecpg
ignores, so it needs to ignore opt_distinct_clause too.
My oversight in 7cd9765f9; reported by Bruce Momjian.
Discussion: https://postgr.es/m/E1l33wr-0005sJ-9n@gemulon.postgresql.org
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libpq's error messages for connection failures pretty well stand on
their own, especially since commits 52a10224e/27a48e5a1. Prefixing
them with 'could not connect to database "foo"' or the like is just
redundant, and perhaps even misleading if the specific database name
isn't relevant to the failure. (When it is, we trust that the
backend's error message will include the DB name.) Indeed, psql
hasn't used any such prefix in a long time. So, make all our other
programs and documentation examples agree with psql's practice.
Discussion: https://postgr.es/m/1094524.1611266589@sss.pgh.pa.us
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The callback for retrieving state change information during connection
setup was only installed when the connection was mostly set up, and
thus didn't provide much information and missed all the details related
to the handshake.
This also extends the callback with SSL_state_string_long() to print
more information about the state change within the SSL object handled.
While there, fix some comments which were incorrectly referring to the
callback and its previous location in fe-secure.c.
Author: Daniel Gustafsson
Discussion: https://postgr.es/m/232CF476-94E1-42F1-9408-719E2AEC5491@yesql.se
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"connection to server so-and-so failed:" seems clearer than the
previous wording "could not connect to so-and-so:" (introduced by
52a10224e), because the latter suggests a network-level connection
failure. We're now prefixing this string to all types of connection
failures, for instance authentication failures; so we need wording
that doesn't imply a low-level error.
Per discussion with Robert Haas.
Discussion: https://postgr.es/m/CA+TgmobssJ6rS22dspWnu-oDxXevGmhMD8VcRBjmj-b9UDqRjw@mail.gmail.com
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If a server returns ERRCODE_CANNOT_CONNECT_NOW, try the next host,
if multiple host names have been provided. This allows dealing
gracefully with standby servers that might not be in hot standby mode
yet.
In the wake of the preceding commit, it might be plausible to retry
many more error cases than we do now, but I (tgl) am hesitant to
move too aggressively on that --- it's not clear it'd be desirable
for cases such as bad-password, for example. But this case seems
safe enough.
Hubert Zhang, reviewed by Takayuki Tsunakawa
Discussion: https://postgr.es/m/BN6PR05MB3492948E4FD76C156E747E8BC9160@BN6PR05MB3492.namprd05.prod.outlook.com
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