Commit Graph

6837 Commits

Author SHA1 Message Date
Jeff Davis ec1264f01e ICU: use uloc_getDefault() for initdb.
Simpler, and better preserves the locale name as read from the
environment.

Author: Daniel Verite
Discussion: https://postgr.es/m/a6204a46-c077-451b-8f9d-8965d95bb57c@manitou-mail.org
2023-05-26 11:26:11 -07:00
Alvaro Herrera 8f5e42d334
Fix pgbench in prepared mode with an empty pipeline
It crashes because it references memory that's not allocated in that
particular case.  Fix by allocating it.

Reported-by: Alexander Lakhin <exclusion@gmail.com>
Discussion: https://postgr.es/m/bcf802a6-afc1-95b9-7bf4-c5dd868ec144@gmail.com
2023-05-25 12:36:18 +02:00
Michael Paquier ecb968e7e3 Fix typo in TAP tests of vacuumdb
Noticed while scanning the area, introduced in 582edc3.
2023-05-25 16:26:08 +09:00
Nathan Bossart 381d19b3ea Document deprecated createuser option.
2dcd1578c4 left the --role option undocumented, which is
inconsistent with other deprecated options such as pg_dump's
--blobs and --no-blobs.  This change adds --role back to
createuser's documentation and usage output and marks it as
deprecated.

Suggested-by: Peter Eisentraut
Reviewed-by: Michael Paquier
Discussion: https://postgr.es/m/0e85c9e7-4804-1cdb-5a4a-c72c328f9ad8%40enterprisedb.com
2023-05-23 19:35:05 -07:00
Peter Eisentraut 473e02f6f9 Translation updates
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 642d41265b1ea68ae71a66ade5c5440ba366a890
2023-05-22 12:44:31 +02:00
Nathan Bossart 2dcd1578c4 Rename some createuser options.
This change renames --admin to --with-admin, --role to --member-of,
and --member to --with-member.  Many people found the previous
names to be confusing.  The --admin and --member options are new in
v16, but --role has been there for a while, so that one has been
kept (but left undocumented) for backward compatibility.

Suggested-by: Peter Eisentraut
Reviewed-by: Tom Lane, Michael Paquier
Discussion: https://postgr.es/m/ZFvVZvQDliIWmOwg%40momjian.us
2023-05-21 20:06:38 -07:00
Tom Lane 0245f8db36 Pre-beta mechanical code beautification.
Run pgindent, pgperltidy, and reformat-dat-files.

This set of diffs is a bit larger than typical.  We've updated to
pg_bsd_indent 2.1.2, which properly indents variable declarations that
have multi-line initialization expressions (the continuation lines are
now indented one tab stop).  We've also updated to perltidy version
20230309 and changed some of its settings, which reduces its desire to
add whitespace to lines to make assignments etc. line up.  Going
forward, that should make for fewer random-seeming changes to existing
code.

Discussion: https://postgr.es/m/20230428092545.qfb3y5wcu4cm75ur@alvherre.pgsql
2023-05-19 17:24:48 -04:00
Alvaro Herrera ed7e686a03
psql: Tweak xheader_width and pager_min_lines input parsing
Don't throw away the previous value when an invalid value is proposed.

Discussion: https://postgr.es/m/20230519110205.updpbjiuqgbox6gp@alvherre.pgsql
2023-05-19 20:19:28 +02:00
Peter Eisentraut 8e7912e73d Message style improvements 2023-05-19 18:45:29 +02:00
Jeff Davis 1c634f6647 ICU: check for U_STRING_NOT_TERMINATED_WARNING.
Fixes memory error in cases where the length of the language name
returned by uloc_getLanguage() is exactly ULOC_LANG_CAPACITY, in which
case the status is set to U_STRING_NOT_TERMINATED_WARNING.

Also check in call sites for other ICU functions that are expected to
return a C string to be safe (no bug is known at these other call
sites).

Reported-by: Alexander Lakhin
Discussion: https://postgr.es/m/2098874d-c111-41e4-9063-30bcf135226b@gmail.com
2023-05-17 14:18:45 -07:00
Alexander Korotkov b9a7a82272 Revert "Add USER SET parameter values for pg_db_role_setting"
This reverts commit 096dd80f3c and its fixups beecbe8e50, afdd9f7f0e,
529da086ba, db93e739ac.

Catversion is bumped.

Discussion: https://postgr.es/m/d46f9265-ff3c-6743-2278-6772598233c2%40pgmasters.net
2023-05-17 20:28:57 +03:00
Alvaro Herrera 58dc80acc5
pg_dump: Error message improvements
Remove spurious semicolon from one error message, and print the
offending value of a parameter reported as invalid in another.
2023-05-17 19:13:08 +02:00
Alvaro Herrera 98bd4c72fd
pg_dump: Have _EndLO report errno after CFH->write_func() failure
Other callers of that function do things this way, but this one didn't
get the memo.
2023-05-17 18:55:51 +02:00
Tomas Vondra 1a05c1d252 Advance input pointer when LZ4 compressing data
LZ4File_write() did not advance the input pointer on subsequent invocations of
LZ4F_compressUpdate(). As a result the generated compressed output would be a
compressed version of the same input chunk.

Tests failed to catch this error because the data would comfortably fit
within the default buffer size, as a single chunk. Tests have been added
to provide adequate coverage of multi-chunk compression.

WriteDataToArchiveLZ4() which is also using LZ4F_compressUpdate() did
not suffer from this omission.

Author: Georgios Kokolatos <gkokolatos@pm.me>
Reported-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/ZFhCyn4Gm2eu60rB%40paquier.xyz
2023-05-17 16:49:34 +02:00
Tomas Vondra 3c18d90f89 Null-terminate the output buffer of LZ4Stream_gets
LZ4Stream_gets did not null-terminate its output buffer. The callers expected
the buffer to be null-terminated and passed it around to functions such as
sscanf with unintended consequences.

Author: Georgios Kokolatos <gkokolatos@pm.me>
Reported-by: Alexander Lakhin <exclusion@gmail.com>
Discussion: https://postgr.es/m/94ae9bca-5ebb-1e68-bb7b-4f32e89fefbe@gmail.com
2023-05-17 16:35:30 +02:00
Peter Eisentraut 489b5409e4 psql: Adjust capitalization of table heading
for consistency with surrounding headings
2023-05-16 06:13:59 +02:00
Peter Eisentraut 92155e15d3 Fix incorrect TAP test ordering
Using a test function before a possible skip_all is incorrect.  If the
skip_all is called, the test output will become incorrect and the test
file will fail.

a4f23f9b3c introduced a new test before skip_all.  After discussion,
this doesn't really need to be a test.  Instead, we just bail out if
the condition is not satisfied.

Discussion: https://www.postgresql.org/message-id/af5567a1-aea6-fbdb-7e4b-d1e23a43c43b@enterprisedb.com
2023-05-15 07:11:22 +02:00
Peter Eisentraut 1d70fb400c Fix whitespace inconsistencies 2023-05-15 06:27:40 +02:00
Tom Lane 51b2c08798 Tighten usage of PSQL_WATCH_PAGER.
Don't use PSQL_WATCH_PAGER when stdin/stdout are not a terminal.
This corresponds to the restrictions on when other commands will
use [PSQL_]PAGER.  There isn't a lot of sense in trying to use a
pager in non-interactive cases, and doing so allows an environment
setting to break our tests.

Also, ignore PSQL_WATCH_PAGER if it is set but empty or all-blank,
for the same reasons we ignore such settings of [PSQL_]PAGER (see
commit 18f8f784c).

No documentation change is really needed, since there is nothing
suggesting that these constraints on [PSQL_]PAGER didn't already
apply to PSQL_WATCH_PAGER too.  But I rearranged the text
a little to make it read more naturally (IMHO anyway).

Per report from Pavel Stehule.  Back-patch to v15 where
PSQL_WATCH_PAGER was introduced.

Discussion: https://postgr.es/m/CAFj8pRDTwFzmEWdA-gdAcUh0ZnxUioSfTMre71WyB_wNJy-8gw@mail.gmail.com
2023-05-12 16:11:14 -04:00
Peter Eisentraut e32701b8d2 initdb: Set collversion for standard collation UNICODE
Since the behavior of the UNICODE collation can change with new
ICU/Unicode versions, we need to apply the versioning mechanism to it.
We do this with an UPDATE command in initdb; this is similar to how we
put the collation version into pg_database already.

Reported-by: Daniel Verite <daniel@manitou-mail.org>
Discussion: https://www.postgresql.org/message-id/49417853-7bdd-4b23-a4e9-04c7aff33821@manitou-mail.org
2023-05-12 10:03:05 +02:00
Jeff Davis 455f948b0d Revert "ICU: do not convert locale 'C' to 'en-US-u-va-posix'."
This reverts commit f7faa9976c.

Discussion: https://postgr.es/m/483826.1683582475@sss.pgh.pa.us
2023-05-08 20:50:51 -07:00
Jeff Davis f7faa9976c ICU: do not convert locale 'C' to 'en-US-u-va-posix'.
The conversion was intended to be for convenience, but it's more
likely to be confusing than useful.

The user can still directly specify 'en-US-u-va-posix' if desired.

Discussion: https://postgr.es/m/f83f089ee1e9acd5dbbbf3353294d24e1f196e95.camel@j-davis.com
Discussion: https://postgr.es/m/37520ec1ae9591f83132f82dbd625f3fc2d69c16.camel@j-davis.com
2023-05-08 10:34:51 -07:00
Peter Eisentraut b8c3f6df85 Add missing source file to nls.mk 2023-05-08 08:24:42 +02:00
Peter Eisentraut 9f9abfeb10 pg_dump: Restore lost translation marker
The refactoring in 03d02f54a6 lost a translation marker.
2023-05-08 07:43:54 +02:00
Peter Eisentraut 90f0d28814 pg_basebackup: Restore lost translation markers
The refactoring in ebfb814f7c lost some translation markers.
2023-05-08 06:15:26 +02:00
Peter Eisentraut b1c4ed2f02 Fix copy-and-pasto in error message
from 2fe3bdbd69
2023-05-05 07:50:08 +02:00
Peter Eisentraut 1ab763fc22 Add missing TAP test name 2023-05-03 11:08:24 +02:00
Daniel Gustafsson 08237056f8 Fix overridden callbacks in pg_rewind.
The <source>_traverse_files functions take a callback for processing
files, but both the local and libpq source implementations called the
function directly without using the callback argument. While there is
no bug right now as the function called is the same as the callback,
fix by calling the callback to reduce the risk of subtle bugs in the
future.

Author: Junwang Zhao <zhjwpku@gmail.com>
Reviewed-by: Richard Guo <guofenglinux@gmail.com>
Discussion: https://postgr.es/m/CAEG8a3Jdwgh+PZr2zh1=t8apA4Yz8tKq+uubPqoCt14nvWKHEw@mail.gmail.com
2023-05-02 13:15:29 +02:00
Michael Paquier 8961cb9a03 Fix typos in comments
The changes done in this commit impact comments with no direct
user-visible changes, with fixes for incorrect function, variable or
structure names.

Author: Alexander Lakhin
Discussion: https://postgr.es/m/e8c38840-596a-83d6-bd8d-cebc51111572@gmail.com
2023-05-02 12:23:08 +09:00
Michael Paquier bedc1f0564 Rework code defining default compression for dir/custom formats in pg_dump
As written, pg_dump would call twice parse_compress_specification() for
the custom and directory formats to build a compression specification if
no compression option is defined, as these formats should be compressed
by default when compiled with zlib, or use no compression without zlib.
This made the code logic quite confusing, and the first compression
specification built would be incorrect before being overwritten by the
second one.

Rather than creating two compression specifications, this commit changes
a bit the order of the checks for the compression options so as
compression_algorithm_str is now set to a correct value for the custom
and format directory when no compression option is defined.  This makes
the code easier to understand, as parse_compress_specification() is now
called once for all the format, with or without user-specified
compression methods.  One comment was also confusing for the non-zlib
case, so remove it while on it.

This code has been introduced in 5e73a60 when adding support for
compression specifications in pg_dump.

Per discussion with Justin Pryzby and Georgios Kokolatos.

Discussion: https://postgr.es/m/20230225050214.GH1653@telsasoft.com
2023-04-27 13:34:05 +09:00
Daniel Gustafsson 7b7fa85130 Fix stop condition for dumping GRANT commands
Commit ce6b672e44 changed dumping GRANT commands to ensure that
grantors already have an ADMIN OPTION on the role for which it
is granting permissions. Looping over the grants per role has a
stop condition on dumping the grant statements, but accidentally
missed updating the variable for the conditional check.

Author: Andreas Scherbaum <ads@pgug.de>
Co-authored-by: Artur Zakirov <zaartur@gmail.com>
Discussion: https://postgr.es/m/de44299d-cd31-b41f-2c2a-161fa5e586a5@pgug.de
2023-04-26 14:24:13 +02:00
Andres Freund 1118cd37eb Remove vacuum_defer_cleanup_age
vacuum_defer_cleanup_age was introduced before hot_standby_feedback and
replication slots existed. It is hard to use reasonably - commonly it will
either be set too low (not preventing recovery conflicts, while still causing
some bloat), or too high (causing a lot of bloat). The alternatives do not
have that issue.

That on its own might not be sufficient reason to remove
vacuum_defer_cleanup_age, but it also complicates computation of xid
horizons. See e.g. the bug fixed in be504a3e97. It also is untested.

This commit removes TransactionIdRetreatSafely(), as there are no users
anymore. There might be potential future users, hence noting that here.

Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://postgr.es/m/20230317230930.nhsgk3qfk7f4axls@awork3.anarazel.de
2023-04-24 12:21:02 -07:00
Amit Kapila 19e65dff38 Display 'password_required' option for \dRs+ command.
The commit c3afe8cf5a added a new subscription option 'password_required'
which should be shown with \dRs+ command.

Author: Vignesh C
Reviewed-by: Amit Kapila, Robert Haas
Discussion: https://postgr.es/m/CAA4eK1LRz5sCZxwCW6OtpjLtWPvRwBihQOM4jzQm6ppfpexqGA@mail.gmail.com
Discussion: https://postgr.es/m/9DFC88D3-1300-4DE8-ACBC-4CEF84399A53@enterprisedb.com
2023-04-24 08:37:58 +05:30
Jeff Davis 5cd1a5af4d Fix initdb --no-locale.
Discussion: https://postgr.es/m/878relf7cb.fsf@news-spur.riddles.org.uk
Reported-by: Andrew Gierth
2023-04-21 13:11:18 -07:00
Tom Lane 9e1e9d6560 Add missed case for tab completion of GRANT/REVOKE MAINTAIN.
We failed to offer "ON" after "GRANT MAINTAIN".
Oversight in commit 60684dd83.

Ken Kato

Discussion: https://postgr.es/m/6afe7712991882a864d6d10003264e7c@oss.nttdata.com
2023-04-19 10:49:53 -04:00
David Rowley 3f58a4e296 Fix various typos and incorrect/outdated name references
Author: Alexander Lakhin
Discussion: https://postgr.es/m/699beab4-a6ca-92c9-f152-f559caf6dc25@gmail.com
2023-04-19 13:50:33 +12:00
Robert Haas 363e8f9115 Fix pg_basebackup with in-place tablespaces some more.
Commit c6f2f01611 purported to make
this work, but problems remained. In a plain-format backup, the
files from an in-place tablespace got included in the tar file for
the main tablespace, which is wrong but it's not clear that it
has any user-visible consequences. In a tar-format backup, the
TABLESPACE_MAP option is used, and so we never iterated over
pg_tblspc and thus never backed up the in-place tablespaces
anywhere at all.

To fix this, reverse the changes in that commit, so that when we scan
pg_tblspc during a backup, we create tablespaceinfo objects even for
in-place tablespaces. We set the field that would normally contain the
absolute pathname to the relative path pg_tblspc/${TSOID}, and that's
good enough to make basebackup.c happy without any further changes.

However, pg_basebackup needs a couple of adjustments to make it work.
First, it needs to understand that a relative path for a tablespace
means it's an in-place tablespace.  Second, it needs to tolerate the
situation where restoring the main tablespace tries to create
pg_tblspc or a subdirectory and finds that it already exists, because
we restore user-defined tablespaces before the main tablespace.

Since in-place tablespaces are only intended for use in development
and testing, no back-patch.

Patch by me, reviewed by Thomas Munro and Michael Paquier.

Discussion: http://postgr.es/m/CA+TgmobwvbEp+fLq2PykMYzizcvuNv0a7gPMJtxOTMOuuRLMHg@mail.gmail.com
2023-04-18 11:23:34 -04:00
David Rowley eef231e816 Fix some typos and some incorrectly duplicated words
Author: Justin Pryzby
Reviewed-by: David Rowley
Discussion: https://postgr.es/m/ZD3D1QxoccnN8A1V@telsasoft.com
2023-04-18 14:03:49 +12:00
David Rowley b4dbf3e924 Fix various typos
This fixes many spelling mistakes in comments, but a few references to
invalid parameter names, function names and option names too in comments
and also some in string constants

Also, fix an #undef that was undefining the incorrect definition

Author: Alexander Lakhin
Reviewed-by: Justin Pryzby
Discussion: https://postgr.es/m/d5f68d19-c0fc-91a9-118d-7c6a5a3f5fad@gmail.com
2023-04-18 13:23:23 +12:00
Peter Eisentraut 2434d60a2a Put new command-line option into sensible order in help output
We have two existing conventions for long options: either alphabetical
among short options, or all long options after all the short options.
But the convention apparently used here, next to a functionally
related option, is not one of them.
2023-04-17 11:09:17 +02:00
David Rowley c0235013c1 Improve VACUUM/ANALYZE BUFFER_USAGE_LIMIT docs
This addresses various deficiencies in the documentation for VACUUM and
ANALYZE's BUFFER_USEAGE_LIMIT docs.

Here we declare "size" in the syntax synopsis for VACUUM and ANALYZE's
BUFFER_USAGE_LIMIT option and then define exactly what values can be
specified for it in the section for that below.

Also, fix the incorrect ordering of vacuumdb options both in the documents
and in vacuumdb's --help output.  These should be in alphabetical order.

In passing also add the minimum/maximum range for the BUFFER_USAGE_LIMIT
option.  These will also serve as example values that can be modified and
used.

Reported-by: Peter Eisentraut
Discussion: https://postgr.es/m/16845cb1-b228-e157-f293-5892bced9253@enterprisedb.com
2023-04-16 12:05:34 +12:00
Peter Eisentraut 99322d6eee Add missing source files to nls.mk 2023-04-14 09:56:04 +02:00
Peter Geoghegan d6f0f95a6b Harmonize some more function parameter names.
Make sure that function declarations use names that exactly match the
corresponding names from function definitions in a few places.  These
inconsistencies were all introduced relatively recently, after the code
base had parameter name mismatches fixed in bulk (see commits starting
with commits 4274dc22 and 035ce1fe).

pg_bsd_indent still has a couple of similar inconsistencies, which I
(pgeoghegan) have left untouched for now.

Like all earlier commits that cleaned up function parameter names, this
commit was written with help from clang-tidy.
2023-04-13 10:15:20 -07:00
Alvaro Herrera 9ce04b50e1
Revert "Catalog NOT NULL constraints" and fallout
This reverts commit e056c557ae and minor later fixes thereof.

There's a few problems in this new feature -- most notably regarding
pg_upgrade behavior, but others as well.  This new feature is not in any
way critical on its own, so instead of scrambling to fix it we revert it
and try again in early 17 with these issues in mind.

Discussion: https://postgr.es/m/3801207.1681057430@sss.pgh.pa.us
2023-04-12 19:29:21 +02:00
Thomas Munro faeedbcefd Introduce PG_IO_ALIGN_SIZE and align all I/O buffers.
In order to have the option to use O_DIRECT/FILE_FLAG_NO_BUFFERING in a
later commit, we need the addresses of user space buffers to be well
aligned.  The exact requirements vary by OS and file system (typically
sectors and/or memory pages).  The address alignment size is set to
4096, which is enough for currently known systems: it matches modern
sectors and common memory page size.  There is no standard governing
O_DIRECT's requirements so we might eventually have to reconsider this
with more information from the field or future systems.

Aligning I/O buffers on memory pages is also known to improve regular
buffered I/O performance.

Three classes of I/O buffers for regular data pages are adjusted:
(1) Heap buffers are now allocated with the new palloc_aligned() or
MemoryContextAllocAligned() functions introduced by commit 439f6175.
(2) Stack buffers now use a new struct PGIOAlignedBlock to respect
PG_IO_ALIGN_SIZE, if possible with this compiler.  (3) The buffer
pool is also aligned in shared memory.

WAL buffers were already aligned on XLOG_BLCKSZ.  It's possible for
XLOG_BLCKSZ to be configured smaller than PG_IO_ALIGNED_SIZE and thus
for O_DIRECT WAL writes to fail to be well aligned, but that's a
pre-existing condition and will be addressed by a later commit.

BufFiles are not yet addressed (there's no current plan to use O_DIRECT
for those, but they could potentially get some incidental speedup even
in plain buffered I/O operations through better alignment).

If we can't align stack objects suitably using the compiler extensions
we know about, we disable the use of O_DIRECT by setting PG_O_DIRECT to
0.  This avoids the need to consider systems that have O_DIRECT but
can't align stack objects the way we want; such systems could in theory
be supported with more work but we don't currently know of any such
machines, so it's easier to pretend there is no O_DIRECT support
instead.  That's an existing and tested class of system.

Add assertions that all buffers passed into smgrread(), smgrwrite() and
smgrextend() are correctly aligned, unless PG_O_DIRECT is 0 (= stack
alignment tricks may be unavailable) or the block size has been set too
small to allow arrays of buffers to be all aligned.

Author: Thomas Munro <thomas.munro@gmail.com>
Author: Andres Freund <andres@anarazel.de>
Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>
Discussion: https://postgr.es/m/CA+hUKGK1X532hYqJ_MzFWt0n1zt8trz980D79WbjwnT-yYLZpg@mail.gmail.com
2023-04-08 16:34:50 +12:00
Tom Lane db6957bae8 Add missing .gitignore entry.
Seems an oversight in 7d8219a44.  Fix before somebody commits
a generated file.
2023-04-07 23:32:49 -04:00
Peter Geoghegan 7d8219a444 Show more detail in heapam rmgr descriptions.
Add helper functions that output arrays in a standard format, and use
the functions inside heapdesc routines.  This allows tools like
pg_walinspect to show a detailed description of the page offset number
arrays for records like PRUNE and VACUUM (unless there was an FPI).

Also document the conventions that desc routines should follow.  Only
the heapdesc routines follow the conventions for now, so they're just
guidelines for the time being.

Based on a suggestion from Andres Freund.

Author: Melanie Plageman <melanieplageman@gmail.com>
Reviewed-By: Peter Geoghegan <pg@bowt.ie>
Discussion: https://postgr.es/m/flat/20230109215842.fktuhesvayno6o4g%40awork3.anarazel.de
2023-04-07 16:08:52 -07:00
Daniel Gustafsson 664d757531 Refactor background psql TAP functions
This breaks out the background and interactive psql functionality into a
new class, PostgreSQL::Test::BackgroundPsql.  Sessions are still initiated
via PostgreSQL::Test::Cluster, but once started they can be manipulated by
the new helper functions which intend to make querying easier.  A sample
session for a command which can be expected to finish at a later time can
be seen below.

  my $session = $node->background_psql('postgres');
  $bsession->query_until(qr/start/, q(
    \echo start
	CREATE INDEX CONCURRENTLY idx ON t(a);
  ));
  $bsession->quit;

Patch by Andres Freund with some additional hacking by me.

Author: Andres Freund <andres@anarazel.de>
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/20230130194350.zj5v467x4jgqt3d6@awork3.anarazel.de
2023-04-07 22:14:20 +02:00
Alvaro Herrera e056c557ae
Catalog NOT NULL constraints
We now create pg_constaint rows for NOT NULL constraints with
contype='n'.

We propagate these constraints during operations such as adding
inheritance relationships, creating and attaching partitions, creating
tables LIKE other tables.  We mostly follow the well-known rules of
conislocal and coninhcount that we have for CHECK constraints, with some
adaptations; for example, as opposed to CHECK constraints, we don't
match NOT NULL ones by name when descending a hierarchy to alter it;
instead we match by column number.  This means we don't require the
constraint names to be identical across a hierarchy.

For now, we omit them from system catalogs.  Maybe this is worth
reconsidering.  We don't support NOT VALID nor DEFERRABLE clauses
either; these can be added as separate features later (this patch is
already large and complicated enough.)

This has been very long in the making.  The first patch was written by
Bernd Helmle in 2010 to add a new pg_constraint.contype value ('n'),
which I (Álvaro) then hijacked in 2011 and 2012, until that one was
killed by the realization that we ought to use contype='c' instead:
manufactured CHECK constraints.  However, later SQL standard
development, as well as nonobvious emergent properties of that design
(mostly, failure to distinguish them from "normal" CHECK constraints as
well as the performance implication of having to test the CHECK
expression) led us to reconsider this choice, so now the current
implementation uses contype='n' again.

In 2016 Vitaly Burovoy also worked on this feature[1] but found no
consensus for his proposed approach, which was claimed to be closer to
the letter of the standard, requiring additional pg_attribute columns to
track the OID of the NOT NULL constraint for that column.
[1] https://postgr.es/m/CAKOSWNkN6HSyatuys8xZxzRCR-KL1OkHS5-b9qd9bf1Rad3PLA@mail.gmail.com

Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Author: Bernd Helmle <mailings@oopsware.de>
Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>

Discussion: https://postgr.es/m/CACA0E642A0267EDA387AF2B%40%5B172.26.14.62%5D
Discussion: https://postgr.es/m/AANLkTinLXMOEMz+0J29tf1POokKi4XDkWJ6-DDR9BKgU@mail.gmail.com
Discussion: https://postgr.es/m/20110707213401.GA27098@alvh.no-ip.org
Discussion: https://postgr.es/m/1343682669-sup-2532@alvh.no-ip.org
Discussion: https://postgr.es/m/CAKOSWNkN6HSyatuys8xZxzRCR-KL1OkHS5-b9qd9bf1Rad3PLA@mail.gmail.com
Discussion: https://postgr.es/m/20220817181249.q7qvj3okywctra3c@alvherre.pgsql
2023-04-07 19:59:57 +02:00
Tom Lane cd82e5c79d Fix locale-dependent test case.
psql parses the interval argument of \watch with locale-dependent
strtod().  In commit 00beecfe8 I added a test case that exercises
a fractional interval, but I hard-coded 0.01 which doesn't work
in locales where the radix point isn't ".".  We don't want to
change this longstanding parsing behavior, so fix the test case
to generate a suitably locale-aware spelling.

Report and patch by Alexander Korotkov.

Discussion: https://postgr.es/m/CAPpHfdv+10Uk6FWjsh3+ju7kHYr76LaRXbYayXmrM7FBU-=Hgg@mail.gmail.com
2023-04-07 10:35:11 -04:00