Commit Graph

7181 Commits

Author SHA1 Message Date
16a3415440 Fix redundancy in error messages
pg_log_error() already prints the program name, so we don't need to
print it again inside the message.
2024-06-20 11:17:21 +02:00
832dc19ea6 Fix comment in pg_upgrade.h.
Contrary to what the comment for the "check" struct member claims,
'pg_upgrade --check' performs only the checks and does not ask the
user for permission to make changes.

Reviewed-by: Daniel Gustafsson
Discussion: https://postgr.es/m/ZnHk7ci5IuTWVc_c%40nathan
2024-06-19 16:12:18 -05:00
81d20fbf7a pg_createsubscriber: Remove failover replication slots on subscriber
After running pg_createsubscriber, these replication slots have no use
on subscriber, so drop them.

Author: Euler Taveira <euler.taveira@enterprisedb.com>
Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Discussion: https://www.postgresql.org/message-id/776c5cac-5ef5-4001-b1bc-5b698bc0c62a%40app.fastmail.com
2024-06-17 12:12:49 +02:00
b963913826 pg_createsubscriber: Remove replication slot check on primary
It used to check if the replication slot exists and is active on
primary.  This check might fail on slow hosts because the replication
slot might not be active at the time of this check.

The current code obtains the replication slot name from the
primary_slot_name on standby and assumes the replication slot exists
and is active on primary.  If it doesn't exist, this tool will log an
error and continue.

Author: Euler Taveira <euler.taveira@enterprisedb.com>
Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Discussion: https://www.postgresql.org/message-id/776c5cac-5ef5-4001-b1bc-5b698bc0c62a%40app.fastmail.com
2024-06-17 10:48:17 +02:00
04c8634c0c pg_createsubscriber: Only --recovery-timeout controls the end of recovery process
It used to check if the target server is connected to the primary
server (send required WAL) to rapidly react when the process won't
succeed.  This code is not enough to guarantee that the recovery
process will complete.  There is a window between the walreceiver
shutdown and the pg_is_in_recovery() returns false that can reach
NUM_CONN_ATTEMPTS attempts and fails.

Instead, rely only on the --recovery-timeout option to give up the
process after the specified number of seconds.

This should help with buildfarm failures on slow machines.

Author: Euler Taveira <euler.taveira@enterprisedb.com>
Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Discussion: https://www.postgresql.org/message-id/776c5cac-5ef5-4001-b1bc-5b698bc0c62a%40app.fastmail.com
2024-06-17 09:42:51 +02:00
105024a472 Improve the granularity of PQsocketPoll's timeout parameter.
Commit f5e4dedfa exposed libpq's internal function PQsocketPoll
without a lot of thought about whether that was an API we really
wanted to chisel in stone.  The main problem with it is the use of
time_t to specify the timeout.  While we do want an absolute time
so that a loop around PQsocketPoll doesn't have problems with
timeout slippage, time_t has only 1-second resolution.  That's
already problematic for libpq's own internal usage --- for example,
pqConnectDBComplete has long had a kluge to treat "connect_timeout=1"
as 2 seconds so that it doesn't accidentally round to nearly zero.
And it's even less likely to be satisfactory for external callers.
Hence, let's change this while we still can.

The best idea seems to be to use an int64 count of microseconds since
the epoch --- basically the same thing as the backend's TimestampTz,
but let's use the standard Unix epoch (1970-01-01) since that's more
likely for clients to be easy to calculate.  Millisecond resolution
would be plenty for foreseeable uses, but maybe the day will come that
we're glad we used microseconds.

Also, since time(2) isn't especially helpful for computing timeouts
defined this way, introduce a new function PQgetCurrentTimeUSec
to get the current time in this form.

Remove the hack in pqConnectDBComplete, so that "connect_timeout=1"
now means what you'd expect.

We can also remove the "#include <time.h>" that f5e4dedfa added to
libpq-fe.h, since there's no longer a need for time_t in that header.
It seems better for v17 not to enlarge libpq-fe.h's include footprint
from what it's historically been, anyway.

I also failed to resist the temptation to do some wordsmithing
on PQsocketPoll's documentation.

Patch by me, per complaint from Dominique Devienne.

Discussion: https://postgr.es/m/913559.1718055575@sss.pgh.pa.us
2024-06-13 15:14:32 -04:00
f83908798f Skip some permissions checks on Cygwin
These are checks that are already skipped on other Windows systems.

Backpatch to all live branches, as appropriate.
2024-06-13 07:38:48 -04:00
a41106dab7 Fix documentation of initdb --show option
It wasn't in the documentation at all (even though we document all the
other debugging-like options).  Also, change the --help output to show
that it exits after showing, similar to other options.
2024-06-13 11:52:35 +02:00
ad8877cb51 Add missing source files to nls.mk
Files in common/ and fe_utils/ that contain translatable strings need
to be listed in the nls.mk files of the programs that use them.  (Not
great, but that's the way it works for now.)  This usually requires
some manual analysis which is done about once during each major
release beta period.  This time, I wrote a hackish script that figures
some of this out more automatically, so this update is a bit larger as
it also includes some files that were missed in the past.
2024-06-13 10:17:36 +02:00
6207f08f70 Harmonize function parameter names for Postgres 17.
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 during Postgres 17 development.

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

This commit was written with help from clang-tidy, by mechanically
applying the same rules as similar clean-up commits (the earliest such
commit was commit 035ce1fe).
2024-06-12 17:01:51 -04:00
b0f2659c7d Add meson NLS support for pg_walsummary 2024-06-06 21:21:58 +02:00
18cbed13d5 Translation updates
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: 647792ce18e56f51614f7559106ad15362c5d1cc
2024-05-20 12:04:11 +02:00
17974ec259 Revise GUC names quoting in messages again
After further review, we want to move in the direction of always
quoting GUC names in error messages, rather than the previous (PG16)
wildly mixed practice or the intermittent (mid-PG17) idea of doing
this depending on how possibly confusing the GUC name is.

This commit applies appropriate quotes to (almost?) all mentions of
GUC names in error messages.  It partially supersedes a243569bf65 and
8d9978a7176, which had moved things a bit in the opposite direction
but which then were abandoned in a partial state.

Author: Peter Smith <smithpb2250@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CAHut%2BPv-kSN8SkxSdoHano_wPubqcg5789ejhCDZAcLFceBR-w%40mail.gmail.com
2024-05-17 11:44:26 +02:00
94af84f00c pg_amcheck: Put new options in consistent order in --help and man page 2024-05-16 11:29:41 +02:00
8aee330af5 Revert temporal primary keys and foreign keys
This feature set did not handle empty ranges correctly, and it's now
too late for PostgreSQL 17 to fix it.

The following commits are reverted:

    6db4598fcb8 Add stratnum GiST support function
    46a0cd4cefb Add temporal PRIMARY KEY and UNIQUE constraints
    86232a49a43 Fix comment on gist_stratnum_btree
    030e10ff1a3 Rename pg_constraint.conwithoutoverlaps to conperiod
    a88c800deb6 Use daterange and YMD in without_overlaps tests instead of tsrange.
    5577a71fb0c Use half-open interval notation in without_overlaps tests
    34768ee3616 Add temporal FOREIGN KEY contraints
    482e108cd38 Add test for REPLICA IDENTITY with a temporal key
    c3db1f30cba doc:  clarify PERIOD and WITHOUT OVERLAPS in CREATE TABLE
    144c2ce0cc7 Fix ON CONFLICT DO NOTHING/UPDATE for temporal indexes

Discussion: https://www.postgresql.org/message-id/d0b64a7a-dfe4-4b84-a906-c7dedfa40a3e@eisentraut.org
2024-05-16 08:17:46 +02:00
a8f87d5d21 Fix query result leak during binary upgrade
9a974cbcba00 moved the query in binary_upgrade_set_pg_class_oids to the
outer level, but left the PQclear and query buffer destruction in the
is_index conditional.  353708e1fb2d fixed the leak of the query buffer
but left the PGresult leak. This moves clearing the result to the outer
level ensuring that it will be called.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/374550C1-F4ED-4D9D-9498-0FD029CCF674@yesql.se
Backpatch-through: v15
2024-05-15 22:48:51 +02:00
cc70e170c0 Make all Perl warnings fatal, catch-up
Apply c5385929593 to new Perl files that had missed the note.
2024-05-15 10:10:19 +02:00
da256a4a7f Pre-beta mechanical code beautification.
Run pgindent, pgperltidy, and reformat-dat-files.

The pgindent part of this is pretty small, consisting mainly of
fixing up self-inflicted formatting damage from patches that
hadn't bothered to add their new typedefs to typedefs.list.
In order to keep it from making anything worse, I manually added
a dozen or so typedefs that appeared in the existing typedefs.list
but not in the buildfarm's list.  Perhaps we should formalize that,
or better find a way to get those typedefs into the automatic list.

pgperltidy is as opinionated as always, and reformat-dat-files too.
2024-05-14 16:34:50 -04:00
3ddbac368c Add missing gettext triggers
Commit d6607016c7 moved all the jsonapi.c error messages into
token_error().  This needs to be added to the various nls.mk files
that use this.  Since that makes token_error() effectively a globally
known symbol, the name seems a bit too general, so rename to
json_token_error() for more clarity.
2024-05-14 12:57:22 +02:00
9eb54a258f Add missing source files to pg_combinebackup/nls.mk 2024-05-14 11:36:20 +02:00
83ae824c87 Remove auth-options support from initdb
When --auth was added to initdb in commit e7029b212755 it had support
for auth options separated by space from the auth type, like:

    --auth pam <servicename>
    --auth ident sameuser

Passing an option to the ident auth type was removed in 01c1a12a5bb4
which left the pam auth-options support in place. 8a02339e9ba3 broke
this by inverting a calculation in the strncmp arguments, which went
unnoticed for a long time.  The ability to pass options to the auth
type was never documented.

Rather than fixing the support for an undocumented feature which has
been broken for all supported versions, and which only supports one
out of many auth types which can take options, it is removed.

Reported-by: Jingxian Li <aqktjcm@qq.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Reviewed-by: Aleksander Alekseev <aleksander@timescale.com>
Discussion: https://postgr.es/m/tencent_29731C7C7E6A2F9FB807C3A1DC3D81293C06@qq.com
2024-05-14 10:50:26 +02:00
2e810bdb7f Make formatting in nls.mk files more consistent
Some of the nls.mk files used different indentation or line breaks
than the majority, which makes editing these files unnecessarily
confusing.
2024-05-14 09:21:17 +02:00
6f8bb7c1e9 Revert structural changes to not-null constraints
There are some problems with the new way to handle these constraints
that were detected at the last minute, and require fixes that appear too
invasive to be doing this late in the cycle.  Revert this (again) for
now, we'll try again with these problems fixed.

The following commits are reverted:

    b0e96f311985  Catalog not-null constraints
    9b581c534186  Disallow changing NO INHERIT status of a not-null constraint
    d0ec2ddbe088  Fix not-null constraint test
    ac22a9545ca9  Move privilege check to the right place
    b0f7dd915bca  Check stack depth in new recursive functions
    3af721794272  Update information_schema definition for not-null constraints
    c3709100be73  Fix propagating attnotnull in multiple inheritance
    d9f686a72ee9  Fix restore of not-null constraints with inheritance
    d72d32f52d26  Don't try to assign smart names to constraints
    0cd711271d42  Better handle indirect constraint drops
    13daa33fa5a6  Disallow NO INHERIT not-null constraints on partitioned tables
    d45597f72fe5  Disallow direct change of NO INHERIT of not-null constraints
    21ac38f498b3  Fix inconsistencies in error messages

Discussion: https://postgr.es/m/202405110940.joxlqcx4dogd@alvherre.pgsql
2024-05-13 11:31:09 +02:00
e2d5508c50 psql: Add missing punctuation in help output 2024-05-09 16:36:51 +02:00
21ac38f498 Fix inconsistencies in error messages
Reported by Kyotaro Horiguchi

Also some comments mentioning wrong version numbers, spotted by Justin
Pryzby.

Discussion: https://postgr.es/m/20240507.171724.750916195320223609.horikyota.ntt@gmail.com
Discussion: https://postgr.es/m/Zh0aAH7tbZb-9HbC@pryzbyj2023
2024-05-09 13:31:22 +02:00
c1aea206e3 Ensure that "pg_restore -l" reports dependent TOC entries correctly.
If -l was specified together with selective-restore options such as -n
or -N, dependent TOC entries such as comments would be omitted from
the listing, even when an actual restore would have selected them.
This happened because PrintTOCSummary neglected to update the te->reqs
marking of the entry they depended on.

Per report from Justin Pryzby.  This has been wrong since 0d4e6ed30
taught _tocEntryRequired to sometimes look at the "reqs" marking of
other TOC entries, so back-patch to all supported branches.

Discussion: https://postgr.es/m/ZjoeirG7yxODdC4P@pryzbyj2023
2024-05-07 18:22:52 -04:00
7a31eb2aaa Translation updates
Source-Git-URL: https://git.postgresql.org/git/pgtranslation/messages.git
Source-Git-Hash: be182cc55e6f72c66215fd9b38851969e3ce5480
2024-05-06 12:06:31 +02:00
a42fc1c903 Fix an assortment of typos
Author: Alexander Lakhin
Discussion: https://postgr.es/m/ae9f2fcb-4b24-5bb0-4240-efbbbd944ca1@gmail.com
2024-05-04 02:33:25 +12:00
13daa33fa5 Disallow NO INHERIT not-null constraints on partitioned tables
Such constraints are semantically useless and only bring weird cases
along, so reject them.

As a side effect, we can no longer have "throwaway" constraints in
pg_dump for primary keys in partitioned tables, but since they don't
serve any useful purpose, we can just omit them.

Maybe this should be done for all types of constraints, but it's just
not-null ones that acquired this "ability" in the 17 timeframe, so for
the moment I'm not changing anything else.

Per note by Alexander Lakhin.
Discussion: https://postgr.es/m/7d923a66-55f0-3395-cd40-81c142b5448b@gmail.com
2024-05-02 10:54:12 +02:00
56455ebd35 Skip invalid database pg_upgrade test on obsolete servers
When testing pg_upgrade against an old server, ignore failures on the
check to upgrade invalid databases.  This is necessary because old
servers don't know to raise the appropriate error of the database being
invalid.

This change causes no reduction in coverage, because such old versions
don't know to mark databases invalid when a drop is interrupted; but
testing against such old servers is useful in some circumstances.

Backpatch to 16, where it cherry-picks with minimal conflicts.

On 16, perltidy 20230309 chooses to change an unrelated line.  I let it
do that because that's the version we document as preferred for that
branch, even though it would make other changes to many other files in
the tree.

Discussion: https://postgr.es/m/202404181539.lh42llaesnv3@alvherre.pgsql
2024-05-01 11:50:05 +02:00
2800fbb2b7 Add tab completion for EXPLAIN (MEMORY|SERIALIZE)
SERIALIZE has been added in 06286709ee06, and MEMORY in 5de890e3610d.

Author: Jian He
Discussion: https://postgr.es/m/CACJufxH5UbhbCg-oMt7pHOmvNABF2x48Jfefu24FexSqVgzA3g@mail.gmail.com
2024-05-01 11:59:14 +09:00
60ae37a8bc Add tab completion for partition MERGE/SPLIT operations
This commit implements psql tab completion for ALTER TABLE ... SPLIT PARTITION
and ALTER TABLE ... MERGE PARTITIONS commands.

Reported-by: Alexander Lakhin
Discussion: https://postgr.es/m/5dee3937-8e9f-cca4-11fb-737709a92b37%40gmail.com
Author: Dagfinn Ilmari Mannsåker, Pavel Borisov
2024-04-30 12:00:39 +03:00
3c18409265 libpq: If ALPN is not used, make PQsslAttribute(conn, "alpn") == ""
The documentation says that PQsslAttribute(conn, "alpn") returns an
empty string if ALPN is not used, but the code actually returned
NULL. Fix the code to match the documentation.

Reported-by: Michael Paquier
Discussion: https://www.postgresql.org/message-id/ZideNHji0G4gxmc3@paquier.xyz
2024-04-29 12:26:46 +03:00
1713e3d6cd Minor fixes to pg_combinebackup and its documentation.
The --tablespace-mapping option was specified with required_argument
rather than no_argument, which is wrong. Since the actual argument
string passed to getopt_long() included "T:", the single-character
form of the option still worked, but the long form did not. Repair.

The call to getopt_long() erroneously included "P", which doesn't
correspond to any supported option. Remove.

The help message used "do not" in one place and "don't" in another.
Standardize on "do not".

The documentation erroneously stated that the tablespace mappings
would be applied relative to the pathnames in the first backup
specified on the command line, rather than the final one. Fix.

Thanks to Tomas Vondra and Daniel Gustafsson for alerting me to
these mistakes.

Discussion: http://postgr.es/m/CA+TgmoYFznwwaZhHSF1Ze7JeyBv-1yOoSrucKMw37WpF=7RP8g@mail.gmail.com
2024-04-26 08:42:42 -04:00
205db0114e pg_combinebackup: Detect checksum mismatches and document limitation.
If not all backups have the same checksum status, but the final backup
has checksums enabled, then the output directory may include pages
with invalid checksums. Document this limitation and explain how to
work around it.

In a future release, we may want to teach pg_combinebackup to
recompute page checksums when required, but as feature freeze has come
and gone, it seems a bit too late to do that for this release.

Patch by me, reviewed by Daniel Gustafsson

Discussion: http://postgr.es/m/CA+TgmoZugzOSmgkx97u3pc0M7U8LycWvugqoyWBv6j15a4hE5g@mail.gmail.com
2024-04-25 14:58:59 -04:00
83751691e9 pg_combinebackup: Add --version to --help output
(It was already on the man page.)
2024-04-24 12:12:57 +02:00
3886530caa pg_combinebackup: Put newer options in consistent order in --help and man page 2024-04-24 11:15:23 +02:00
256b4b0606 pg_dump: Put new options in consistent order in --help and man page 2024-04-24 10:00:58 +02:00
f994ed89a9 pg_walsummary: Document --version option
It was working, but it was not shown in the --help output or on the
man page.
2024-04-24 08:56:21 +02:00
89ad3e1316 Try again to add test coverage for pg_combinebackup w/tablespaces.
My previous attempt to add this had to be reverted in commit
82023d47de9e262730b1f9b4ea77fae201a89d0a. I've revised the problematic
code a bit; hopefully it is OK now.

Discussion: http://postgr.es/m/CA+Tgmobiv1QJR5PEJoDKeZDrJHZFRmi4XmWOqufN49DJj-3e2g@mail.gmail.com
2024-04-23 16:33:19 -04:00
b29cbd3da4 Fix the handling of the failover option in subscription commands.
Do not allow ALTER SUBSCRIPTION ... SET (failover = on|off) in a
transaction block as the changed failover option of the slot can't be
rolled back. For the same reason, we refrain from altering the replication
slot's failover property if the subscription is created with a valid
slot_name and create_slot=false.

Reprted-by: Kuroda Hayato
Author: Hou Zhijie
Reviewed-by: Shveta Malik, Bertrand Drouvot, Kuroda Hayato
Discussion: https://postgr.es/m/OS0PR01MB57165542B09DFA4943830BF294082@OS0PR01MB5716.jpnprd01.prod.outlook.com
2024-04-23 12:22:30 +05:30
f46bee346c Fix dumps of partitioned tables with table AMs
pg_dump/restore failed to properly set the table access method for
partitioned tables, as it relies on SET queries that would change
default_table_access_method.  However, SET affects only tables and
materialized views, not partitioned tables which would always be
restored with their pg_class.relam set to 0, losing their table AM set
by either a CREATE TABLE .. USING or by a ALTER TABLE .. SET ACCESS
METHOD.

Appending a USING clause to the definition of CREATE TABLE is not
possible as users may specify --no-table-access-method at restore or for
a dump, meaning that the table AM portions may have to be skipped.
Rather than SET, the solution used by this commit is to generate an
extra ALTER TABLE .. SET ACCESS METHOD when restoring a partitioned
table, based on the table AM set in its TOC entry.  The choice of using
a SET query or an ALTER TABLE query for a relation requires the addition
of the relkind to the TOC entry to be able to choose between one or the
other.  Note that using ALTER TABLE SET ACCESS METHOD on a relation with
physical storage would require a full rewrite, which would be costly for
one.  This also creates problems with binary upgrades where the rewrite
would not be able to keep the OID of the relation consistent across the
upgrade.

This commit would normally require a protocol bump, but a45c78e3284b has
already done one for this release cycle.

Regression tests are adjusted with the new expected output, with some
tweaks for the table AMs of the partitions to make the output more
readable.

Issue introduced by 374c7a229042, that has added support for table AMs
in partitioned tables.

Author: Michael Paquier
Reviewed-by: Álvaro Herrera
Discussion: https://postgr.es/m/Zh4JLSvvtQgBJZkZ@paquier.xyz
2024-04-22 15:15:36 +09:00
8c239ee15a createdb: compare strategy case-insensitive
When specifying the createdb strategy, the documentation suggests valid
options are FILE_COPY and WAL_LOG, but the code does case-sensitive
comparison and accepts only "file_copy" and "wal_log" as valid.

Fixed by doing a case-insensitive comparison using pg_strcasecmp(), same
as for other string parameters nearby.

While at it, apply fmtId() to a nearby "locale_provider". This already
did the comparison in case-insensitive way, but the value would not be
double-quoted, confusing the parser and the error message.

Backpatch to 15, where the strategy was introduced.

Backpatch-through: 15
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/90c6913a-1dd2-42b4-8365-ce3b09c39b17@enterprisedb.com
2024-04-21 21:21:26 +02:00
82023d47de Revert recent ill-advised test case changes.
Commit 6bf5c42b5546984df29289918f952e6211069c54 cannot work on Windows,
because it lacks symlink support. While the bug fix in commit
cd64dc42d1e1b03e57e6ba3d316e4f9dec52a78d is correct as far as I know,
the test case changes depend on the previous commit, so this will
have to live without test coverage until we can come up with a better
solution. Commit fa7036dd6644d13233b475874a94754a5903e35a was a test
case bug fix on top of those two, to prevent failures on Linux, so that
has to come out as well.

Per the buildfarm, CI, and Thomas Munro.
2024-04-19 17:21:56 -04:00
fa7036dd66 Use tempdir_short instead of tempdir.
After cd64dc42d1e1b03e57e6ba3d316e4f9dec52a78d, a significant
percentage of the buildfarm got unhappy, because pg_basebackup chokes
if it tries to create a tarfile with symlink more than 99 characters
in length. To try to fix that problem, use tempdir_short instead of
tempdir, as we do in pg_verifybackup's 003_corruption.pl.

There's a more complicated workaround for the same issue in
pg_basebackup's 010_pg_basebackup.pl, but I'm not clear whether
there's any reason to do it that way here. For now, let's try this,
to at least get the buildfarm green again.

A better long-term fix would be to figure out how to generate tar
files containing long symlinks, but that will have to wait for
another time.
2024-04-19 15:50:02 -04:00
cd64dc42d1 pg_combinebackup: Fix incorrect tablespace handling.
The previous coding mangled the pathname calculation for
incremental files located in user-defined tablespaces.

Enhance the test cases to cover such cases, as I should have
done originally. Thanks to Andres Freund for alerting me to the
lack of test coverage.

Discussion: http://postgr.es/m/CA+TgmoYdXTjo9iQeoipTccDpWZzvBNS6EndY2uARM+T4yG_yDg@mail.gmail.com
2024-04-19 13:30:42 -04:00
6bf5c42b55 Make PostgreSQL::Test::Cluster::init_from_backup handle tablespaces.
This commit doesn't use this infrastructure for anything new, although
it does adapt 010_pg_basebackup.pl to use it. However, a future commit
will use this to improve test coverage for pg_combinebackup.

Patch by me, reviewed (but not fully endorsed) by Andres Freund.

Discussion: http://postgr.es/m/CA+TgmoYdXTjo9iQeoipTccDpWZzvBNS6EndY2uARM+T4yG_yDg@mail.gmail.com
2024-04-19 13:08:03 -04:00
0cd711271d Better handle indirect constraint drops
It is possible for certain cases to remove not-null constraints without
maintaining the attnotnull in its correct state; for example if you drop
a column that's part of the primary key, and the other columns of the PK don't
have not-null constraints, then we should reset the attnotnull flags for
those other columns; up to this commit, we didn't.  Handle those cases
better by doing the attnotnull reset in RemoveConstraintById() instead
of in dropconstraint_internal().

However, there are some cases where we must not do so.  For example if
those other columns are in replica identity indexes or are generated
identity columns, we must keep attnotnull set, even though it results in
the catalog inconsistency that no not-null constraint supports that.

Because the attnotnull reset now happens in more places than before, for
instance when a column of the primary key changes type, we need an
additional trick to reinstate it as necessary.  Introduce a new
alter-table pass that does this, which needs simply reschedule some
AT_SetAttNotNull subcommands that were already being generated and
ignored.

Because of the exceptions in which attnotnull is not reset noted above,
we also include a pg_dump hack to include a not-null constraint when the
attnotnull flag is set even if no pg_constraint row exists.  This part
is undesirable but necessary, because failing to handle the case can
result in unrestorable dumps.

Reported-by: Tender Wang <tndrwang@gmail.com>
Co-authored-by: Tender Wang <tndrwang@gmail.com>
Reviewed-by: jian he <jian.universality@gmail.com>
Discussion: https://postgr.es/m/CAHewXN=hMbNa3d43NOR=OCgdgpTt18S-1fmueCoEGesyeK4bqw@mail.gmail.com
2024-04-19 12:37:33 +02:00
950d4a2cb1 Fix typos and duplicate words
This fixes various typos, duplicated words, and tiny bits of whitespace
mainly in code comments but also in docs.

Author: Daniel Gustafsson <daniel@yesql.se>
Author: Heikki Linnakangas <hlinnaka@iki.fi>
Author: Alexander Lakhin <exclusion@gmail.com>
Author: David Rowley <dgrowleyml@gmail.com>
Author: Nazir Bilal Yavuz <byavuz81@gmail.com>
Discussion: https://postgr.es/m/3F577953-A29E-4722-98AD-2DA9EFF2CBB8@yesql.se
2024-04-18 21:28:07 +02:00
9e72f6bfae Restrict where INCREMENTAL.${NAME} files are recognized.
Previously, they were recognized anywhere in an incremental backup
directory; now, we restrict this to places where they are expected to
appear. That means this code will need updating if we ever do
incremental backups of files in other places (e.g. SLRU files), but
it lets you create a file called INCREMENTAL.config (or something like
that) at the top level of the data directory and still have things
work.

Patch by me, per request from David Steele, who also reviewed.

Discussion: http://postgr.es/m/5a7817da-6349-4653-8056-470300b6e512@pgmasters.net
2024-04-18 11:00:38 -04:00