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Since 8b9e9644d, the messages for failed permissions checks report
"table" where appropriate, rather than "relation".
Backpatch to all supported branches
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Optional subfeatures have been changed to top-level features, so there
is a bit of a churn in the list for that.
Some existing functions have been added to the standard, so they are
moved from the "other" to the "standard" lists in their sections.
Discussion: https://www.postgresql.org/message-id/flat/[email protected]
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Per previous convention (see
ace397e9d24eddc56e7dffa921f506117b602d78), drop SQL:2011 and only keep
the latest two standards and SQL-92.
Discussion: https://www.postgresql.org/message-id/flat/[email protected]
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The meson docs generation hardcoded using the website style so far. Make it
configurable via a meson option.
Reviewed-by: Justin Pryzby <[email protected]>
Reported-by: Peter Eisentraut <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Until now the meson built docs did not have a working reference to the css
stylesheet, it was copied in the make target. Instead of duplicating that for
meson, use the docbook-xsl parameter custom.css.source to reference it. An
additional benefit of that approach is that the stylesheet is now included in
the single-file HTML documentation.
Reported-by: Peter Eisentraut <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Until now the meson built HTML docs had non-working references to images. They
were copied in the make target. Instead of duplicating that for meson, copy
them as part of the xslt stylesheet.
Reported-by: Peter Eisentraut <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Detect and report if the tools necessary to build documentation are available
during configure. This is represented as two new options 'docs' and
'docs_pdf', both defaulting to 'auto'.
This should also fix a meson error about the installdocs target, when none of
the doc tools are found.
Reviewed-by: Justin Pryzby <[email protected]>
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/ZB8331v5IhUA/[email protected]
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These are just minor prerequisite changes for later commits. Kept separate for
easier review.
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
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We had partial support for generating documentation suitable for .chm
files. However, we only had wired up generating the input files using
docbook-xsl, not generating an actual .chm file. Nor did we document how to do
so. Additionally, it was very slow to generate htmlhelp, as we never applied
the docbook-xsl stylesheet performance improvements to htmlhelp.
It doesn't look like there's any interest in the htmlhelp output, so remove
it, instead of spending cycles to finish the support.
Discussion: https://postgr.es/m/[email protected]
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The explanation describing the dependency to system read() calls for
these two functions has been removed in ddfc2d9. And after more
discussion about d69c404, we have concluded that adding more details
makes them easier to understand.
While on it, use the term "block read requests" (maybe found in cache)
rather than "buffers fetched" and "buffer hits".
Per discussion with Melanie Plageman, Kyotaro Horiguchi, Bertrand
Drouvot and myself.
Discussion: https://postgr.es/m/CAAKRu_ZmdiScT4q83OAbfmR5AH-L5zWya3SXjaxiJvhCob-e2A@mail.gmail.com
Backpatch-through: 11
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Convert to BCP47 language tags before storing in the catalog, except
during binary upgrade or when the locale comes from an existing
collation or template database.
The resulting language tags can vary slightly between ICU
versions. For instance, "@colBackwards=yes" is converted to
"und-u-kb-true" in older versions of ICU, and to the simpler (but
equivalent) "und-u-kb" in newer versions.
The process of canonicalizing to a language tag also understands more
input locale string formats than ucol_open(). For instance,
"fr_CA.UTF-8" is misinterpreted by ucol_open() and the region is
ignored; effectively treating it the same as the locale "fr" and
opening the wrong collator. Canonicalization properly interprets the
language and region, resulting in the language tag "fr-CA", which can
then be understood by ucol_open().
This commit fixes a problem in prior versions due to ucol_open()
misinterpreting locale strings as described above. For instance,
creating an ICU collation with locale "fr_CA.UTF-8" would store that
string directly in the catalog, which would later be passed to (and
misinterpreted by) ucol_open(). After this commit, the locale string
will be canonicalized to language tag "fr-CA" in the catalog, which
will be properly understood by ucol_open(). Because this fix affects
the resulting collator, we cannot change the locale string stored in
the catalog for existing databases or collations; otherwise we'd risk
corrupting indexes. Therefore, only canonicalize locales for
newly-created (not upgraded) collations/databases. For similar
reasons, do not backport.
Discussion: https://postgr.es/m/[email protected]
Reviewed-by: Peter Eisentraut
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Invent "GET DIAGNOSTICS oid_variable = PG_ROUTINE_OID".
This is useful for avoiding the maintenance nuisances that come
with embedding a function's name in its body, as one might do
for logging purposes for example. Typically users would cast the
result to regproc or regprocedure to get something human-readable,
but we won't pre-judge whether that's appropriate.
Pavel Stehule, reviewed by Kirk Wolak and myself
Discussion: https://postgr.es/m/CAFj8pRA4zMd5pY-B89Gm64bDLRt-L+akOd34aD1j4PEstHHSVQ@mail.gmail.com
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This option is normally false, but can be set to true to obtain
the legacy behavior where the subscription runs with the permissions
of the subscription owner rather than the permissions of the
table owner. The advantages of this mode are (1) it doesn't require
that the subscription owner have permission to SET ROLE to each
table owner and (2) since no role switching occurs, the
SECURITY_RESTRICTED_OPERATION restrictions do not apply.
On the downside, it allows any table owner to easily usurp
the privileges of the subscription owner - basically, to take
over their account. Because that's generally quite undesirable,
we don't make this mode the default, but we do make it available,
just in case the new behavior causes too many problems for someone.
Discussion: http://postgr.es/m/CA+TgmoZ-WEeG6Z14AfH7KhmpX2eFh+tZ0z+vf0=eMDdbda269g@mail.gmail.com
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Up until now, logical replication actions have been performed as the
subscription owner, who will generally be a superuser. Commit
cec57b1a0fbcd3833086ba686897c5883e0a2afc documented hazards
associated with that situation, namely, that any user who owns a
table on the subscriber side could assume the privileges of the
subscription owner by attaching a trigger, expression index, or
some other kind of executable code to it. As a remedy, it suggested
not creating configurations where users who are not fully trusted
own tables on the subscriber.
Although that will work, it basically precludes using logical
replication in the way that people typically want to use it,
namely, to replicate a database from one node to another
without necessarily having any restrictions on which database
users can own tables. So, instead, change logical replication to
execute INSERT, UPDATE, DELETE, and TRUNCATE operations as the
table owner when they are replicated.
Since this involves switching the active user frequently within
a session that is authenticated as the subscription user, also
impose SECURITY_RESTRICTED_OPERATION restrictions on logical
replication code. As an exception, if the table owner can SET
ROLE to the subscription owner, these restrictions have no
security value, so don't impose them in that case.
Subscription owners are now required to have the ability to
SET ROLE to every role that owns a table that the subscription
is replicating. If they don't, replication will fail. Superusers,
who normally own subscriptions, satisfy this property by default.
Non-superusers users who own subscriptions will need to be
granted the roles that own relevant tables.
Patch by me, reviewed (but not necessarily in its entirety) by
Jelte Fennema, Jeff Davis, and Noah Misch.
Discussion: http://postgr.es/m/CA+TgmoaSCkg9ww9oppPqqs+9RVqCexYCE6Aq=UsYPfnOoDeFkw@mail.gmail.com
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Author: Brar Piening <[email protected]>
Discussion: https://www.postgresql.org/message-id/[email protected]
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The trace point was using the relfileno / fork / block for the to-be-read-in
buffer. Some upcoming work would make that more expensive to provide. We still
have buffer-flush-start/done, which can serve most tracing needs that
buffer-write-dirty could serve.
Discussion: https://postgr.es/m/[email protected]
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Traditionally, vacuum always makes use of a buffer access strategy 32
buffers in size. This means that running vacuums tend not to cause too
many shared buffers to become dirty, however, this can cause vacuums to
run much more slowly than they otherwise could as WAL flushes will occur
more frequently due to having to flush WAL out to the LSN of the dirty
page before that page can be written to disk.
When we are performing failsafe VACUUMs (as added in 1e55e7d17), we really
want to make the vacuum work go as quickly as possible, so here we disable
the buffer access strategy when entering failsafe mode while vacuuming a
relation.
Per idea and analyis from Andres Freund.
In passing, also include some changes I had intended for 32fbe0239.
Author: Melanie Plageman
Reviewed-by: Justin Pryzby, David Rowley
Discussion: https://postgr.es/m/20230111182720.ejifsclfwymw2reb%40awork3.anarazel.de
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It seems useful to add this to the glossary as there's discussion around
adding an option to VACUUM to disable and adjust the size of the buffer
access strategy that VACUUM uses.
Author: Melanie Plageman
Reviewed-by: Justin Pryzby, David Rowley
Discussion: https://postgr.es/m/ZBYDTrD1kyGg%2BHkS%40telsasoft.com
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Allow users to opt out of returning FPI data and block data from
pg_get_wal_block_info as an optimization. Testing has shown that this
can make function execution over twice as fast in some cases.
When pg_get_wal_block_info is called with "show_data := false", it
always returns NULL values for its block_data and block_fpi_data bytea
output parameters. Nothing else changes. In particular, the function
will still return the usual per-block summary of block data/FPI space
overhead. Use of "show_data := false" is therefore feasible with all
queries that don't specifically require these raw binary strings.
Follow-up to recent work in commit 122376f0. There still hasn't been a
stable release with the pg_get_wal_block_info function, so no bump in
the pg_walinspect extension version.
Per suggestion from Melanie Plageman.
Author: Peter Geoghegan <[email protected]>
Discussion: https://postgr.es/m/CAAKRu_bJvbcYBRj2cN6G2xV7B7-Ja+pjTO1nEnEhRR8OXYiABA@mail.gmail.com
Discussion: https://postgr.es/m/CAH2-Wzm9shOkEDM10_+qOZkRSQhKVxwBFiehH6EHWQQRd_rDPw@mail.gmail.com
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This patch introduces the SQL standard IS JSON predicate. It operates
on text and bytea values representing JSON, as well as on the json and
jsonb types. Each test has IS and IS NOT variants and supports a WITH
UNIQUE KEYS flag. The tests are:
IS JSON [VALUE]
IS JSON ARRAY
IS JSON OBJECT
IS JSON SCALAR
These should be self-explanatory.
The WITH UNIQUE KEYS flag makes these return false when duplicate keys
exist in any object within the value, not necessarily directly contained
in the outermost object.
Author: Nikita Glukhov <[email protected]>
Author: Teodor Sigaev <[email protected]>
Author: Oleg Bartunov <[email protected]>
Author: Alexander Korotkov <[email protected]>
Author: Amit Langote <[email protected]>
Author: Andrew Dunstan <[email protected]>
Reviewers have included (in no particular order) Andres Freund, Alexander
Korotkov, Pavel Stehule, Andrew Alsup, Erik Rijkers, Zihong Yu,
Himanshu Upadhyaya, Daniel Gustafsson, Justin Pryzby.
Discussion: https://postgr.es/m/CAF4Au4w2x-5LTnN_bxky-mq4=WOqsGsxSpENCzHRAzSnEd8+WQ@mail.gmail.com
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/abd9b83b-aa66-f230-3d6d-734817f0995d%40postgresql.org
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This converts pg_regress output format to emit TAP compliant output
while keeping it as human readable as possible for use without TAP
test harnesses. As verbose harness related information isn't really
supported by TAP this also reduces the verbosity of pg_regress runs
which makes scrolling through log output in buildfarm/CI runs a bit
easier as well.
As the meson TAP parser conumes whitespace, the leading indentation
for differentiating parallel tests from sequential tests has been
changed to a single character prefix.
This patch has been around for an extended period of time, reviewers
listed below may have been involved in reviewing a version quite
different from the version in this commit. The original idea for
this patch was a hacking session with Jinbao Chen.
TAP format testing is also enabled in meson as of this.
Reviewed-by: Andres Freund <[email protected]>
Reviewed-by: Tom Lane <[email protected]>
Reviewed-by: Nikolay Shaplov <[email protected]>
Reviewed-by: Dagfinn Ilmari Mannsåker <[email protected]>
Reviewed-by: Peter Eisentraut <[email protected]>
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
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This commit adds XML ID attributes to all varlistentries in
create_publication.sgml. This allows us to include links to refer to
publication options, making documents more readable.
Author: Kuroda Hayato
Reviewed-by: Peter Smith, Amit Kapila
Discussion: https://postgr.es/m/TYAPR01MB58668219FEA4EC231486A433F58E9@TYAPR01MB5866.jpnprd01.prod.outlook.com
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Among other things, this should make it easier to calculate a useful cache hit
ratio by excluding buffer reads via buffer access strategies. As buffer access
strategies reuse buffers (and thus evict the prior buffer contents), it is
normal to see reads on repeated scans of the same data.
Author: Melanie Plageman <[email protected]>
Reviewed-by: Bertrand Drouvot <[email protected]>
Reviewed-by: Andres Freund <[email protected]>
Discussion: https://postgr.es/m/CAAKRu_beMa9Hzih40%3DXPYqhDVz6tsgUGTrhZXRo%3Dunp%2Bszb%3DUA%40mail.gmail.com
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Expand the output parameters in pg_walinspect's pg_get_wal_block_info
function to return additional information that was previously only
available from pg_walinspect's pg_get_wal_records_info function. Some
of the details are attributed to individual block references, rather
than aggregated into whole-record values, since the function returns one
row per block reference per WAL record (unlike pg_get_wal_records_info,
which always returns one row per WAL record).
This structure is much easier to work with when writing queries that
track how individual blocks changed over time, or when attributing costs
to individual blocks (not WAL records) is useful.
This is the second time that pg_get_wal_block_info has been enhanced in
recent weeks. Commit 9ecb134a expanded on the original version of the
function added in commit c31cf1c0 (where it first appeared under the
name pg_get_wal_fpi_info). There still hasn't been a stable release
since commit c31cf1c0, so no bump in the pg_walinspect extension
version.
Author: Bharath Rupireddy <[email protected]>
Author: Peter Geoghegan <[email protected]>
Reviewed-By: Peter Geoghegan <[email protected]>
Reviewed-By: Kyotaro HORIGUCHI <[email protected]>
Discussion: https://postgr.es/m/CALj2ACVRK5=Z+2ZVsjgTTSkfEnQzCuwny7iigpG7g1btk4Ws2A@mail.gmail.com
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This documentation hunk was intended to be part of that commit,
but I goofed.
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This role can be granted to non-superusers to allow them to issue
CREATE SUBSCRIPTION. The non-superuser must additionally have CREATE
permissions on the database in which the subscription is to be
created.
Most forms of ALTER SUBSCRIPTION, including ALTER SUBSCRIPTION .. SKIP,
now require only that the role performing the operation own the
subscription, or inherit the privileges of the owner. However, to
use ALTER SUBSCRIPTION ... RENAME or ALTER SUBSCRIPTION ... OWNER TO,
you also need CREATE permission on the database. This is similar to
what we do for schemas. To change the owner of a schema, you must also
have permission to SET ROLE to the new owner, similar to what we do
for other object types.
Non-superusers are required to specify a password for authentication
and the remote side must use the password, similar to what is required
for postgres_fdw and dblink. A superuser who wants a non-superuser to
own a subscription that does not rely on password authentication may
set the new password_required=false property on that subscription. A
non-superuser may not set password_required=false and may not modify a
subscription that already has password_required=false.
This new password_required subscription property works much like the
eponymous postgres_fdw property. In both cases, the actual semantics
are that a password is not required if either (1) the property is set
to false or (2) the relevant user is the superuser.
Patch by me, reviewed by Andres Freund, Jeff Davis, Mark Dilger,
and Stephen Frost (but some of those people did not fully endorse
all of the decisions that the patch makes).
Discussion: http://postgr.es/m/CA+TgmoaDH=0Xj7OBiQnsHTKcF2c4L+=gzPBUKSJLh8zed2_+Dg@mail.gmail.com
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This adds support for load balancing connections with libpq using a
connection parameter: load_balance_hosts=<string>. When setting the
param to random, hosts and addresses will be connected to in random
order. This then results in load balancing across these addresses and
hosts when multiple clients or frequent connection setups are used.
The randomization employed performs two levels of shuffling:
1. The given hosts are randomly shuffled, before resolving them
one-by-one.
2. Once a host its addresses get resolved, the returned addresses
are shuffled, before trying to connect to them one-by-one.
Author: Jelte Fennema <[email protected]>
Reviewed-by: Aleksander Alekseev <[email protected]>
Reviewed-by: Michael Banck <[email protected]>
Reviewed-by: Andrey Borodin <[email protected]>
Discussion: https://postgr.es/m/PR3PR83MB04768E2FF04818EEB2179949F7A69@PR3PR83MB0476.EURPRD83.prod.outlook.
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This commit introduces the SQL/JSON standard-conforming constructors for
JSON types:
JSON_ARRAY()
JSON_ARRAYAGG()
JSON_OBJECT()
JSON_OBJECTAGG()
Most of the functionality was already present in PostgreSQL-specific
functions, but these include some new functionality such as the ability
to skip or include NULL values, and to allow duplicate keys or throw
error when they are found, as well as the standard specified syntax to
specify output type and format.
Author: Nikita Glukhov <[email protected]>
Author: Teodor Sigaev <[email protected]>
Author: Oleg Bartunov <[email protected]>
Author: Alexander Korotkov <[email protected]>
Author: Amit Langote <[email protected]>
Reviewers have included (in no particular order) Andres Freund, Alexander
Korotkov, Pavel Stehule, Andrew Alsup, Erik Rijkers, Zihong Yu,
Himanshu Upadhyaya, Daniel Gustafsson, Justin Pryzby.
Discussion: https://postgr.es/m/CAF4Au4w2x-5LTnN_bxky-mq4=WOqsGsxSpENCzHRAzSnEd8+WQ@mail.gmail.com
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/abd9b83b-aa66-f230-3d6d-734817f0995d%40postgresql.org
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This matches the Autoconf default (-O2 + debug) better. The previous
default setting "release" used -O3, which resulted in different
compiler warnings. At least for now, we want to avoid such
divergence.
Discussion: https://www.postgresql.org/message-id/flat/CAFj8pRBJD_Y-XcqwXSbWS24z%2B84FFX7ajhCan9ixc_m4bD63sA%40mail.gmail.com
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When there are multiple publications for a subscription and one of those
publishes via the parent table by using publish_via_partition_root and the
other one directly publishes the child table, we end up copying the same
data twice during initial synchronization. The reason for this was that we
get both the parent and child tables from the publisher and try to copy
the data for both of them.
This patch extends the function pg_get_publication_tables() to take a
publication list as its input parameter. This allows us to exclude a
partition table whose ancestor is published by the same publication list.
This problem does exist in back-branches but we decide to fix it there in
a separate commit if required. The fix for back-branches requires quite
complicated changes to fetch the required table information from the
publisher as we can't update the function pg_get_publication_tables() in
back-branches. We are not sure whether we want to deviate and complicate
the code in back-branches for this problem as there are no field reports
yet.
Author: Wang wei
Reviewed-by: Peter Smith, Jacob Champion, Kuroda Hayato, Vignesh C, Osumi Takamichi, Amit Kapila
Discussion: https://postgr.es/m/OS0PR01MB57167F45D481F78CDC5986F794B99@OS0PR01MB5716.jpnprd01.prod.outlook.com
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Commit ecb696527c added an XML ID attribute to one varlistentry in
create_subscription.sgml. Following 78ee60ed84, this commit adds XML ID
attributes to all varlistentries in create_subscription.sgml.
Additionally, links are added to refer to the subscription options,
enhancing the readability of documents.
Author: Kuroda Hayato
Reviewed-by: Peter Smith, Amit Kapila
Discussion: https://postgr.es/m/TYAPR01MB58667AE04D291924671E2051F5879@TYAPR01MB5866.jpnprd01.prod.outlook.com
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For ICU collations, ensure that the locale's language exists in ICU,
and that the locale can be opened.
Basic validation helps avoid minor mistakes and misspellings, which
often fall back to the root locale instead of the intended
locale. It's even more important to avoid such mistakes in ICU
versions 54 and earlier, where the same (misspelled) locale string
could fall back to different locales depending on the environment.
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
Reviewed-by: Peter Eisentraut
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Change the columns attndims, attstattarget, and attinhcount from int32
to int16, and reorder a bit. This saves some space (currently 4
bytes) in pg_attribute and tuple descriptors, which translates into
small performance benefits and/or room for new columns in pg_attribute
needed by future features.
attndims and attinhcount are never realistically used with values
larger than int16. Just to be sure, add some overflow checks.
attstattarget is currently limited explicitly to 10000.
For consistency, pg_constraint.coninhcount is also changed like
attinhcount.
Discussion: https://www.postgresql.org/message-id/flat/d07ffc2b-e0e8-77f7-38fb-be921dff71af%40enterprisedb.com
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Commit 4c8d65408 incorrectly stated that Homebrew has changed its
prefix for Apple M1 machines, but the prefix change applies to all
Apple Silicon based machines. Fix by writing Apple Silicon instead
of Apple M1.
Reported-by: Dagfinn Ilmari Mannsåker <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Homebrew changed the prefix for Apple M1 based machines, so our
advice for XML_CATALOG_FILES needs to mention both. More info
on the Homebrew change can be found at:
https://github.com/Homebrew/brew/issues/9177
Author: Julien Rouhaud <[email protected]>
Discussion: https://postgr.es/m/20230327082441.h7pa2vqiobbyo7rd@jrouhaud
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Replace the hardcoded value with a GUC such that the iteration
count can be raised in order to increase protection against
brute-force attacks. The hardcoded value for SCRAM iteration
count was defined to be 4096, which is taken from RFC 7677, so
set the default for the GUC to 4096 to match. In RFC 7677 the
recommendation is at least 15000 iterations but 4096 is listed
as a SHOULD requirement given that it's estimated to yield a
0.5s processing time on a mobile handset of the time of RFC
writing (late 2015).
Raising the iteration count of SCRAM will make stored passwords
more resilient to brute-force attacks at a higher computational
cost during connection establishment. Lowering the count will
reduce computational overhead during connections at the tradeoff
of reducing strength against brute-force attacks.
There are however platforms where even a modest iteration count
yields a too high computational overhead, with weaker password
encryption schemes chosen as a result. In these situations,
SCRAM with a very low iteration count still gives benefits over
weaker schemes like md5, so we allow the iteration count to be
set to one at the low end.
The new GUC is intentionally generically named such that it can
be made to support future SCRAM standards should they emerge.
At that point the value can be made into key:value pairs with
an undefined key as a default which will be backwards compatible
with this.
Reviewed-by: Michael Paquier <[email protected]>
Reviewed-by: Jonathan S. Katz <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Word-smith section 22.1 ("Database Roles") a little bit in hopes
of removing confusion about how the bootstrap superuser's name
is chosen.
While here, I couldn't help noticing that the claim that the bootstrap
superuser is the only initially-existing role has been a lie since
we started to invent predefined roles. We don't want too much detail
in this very introductory text, but it seems worth changing it to say
that it's the only initially-existing login-capable role.
Per documentation comment from Maja Zaloznik.
Discussion: https://postgr.es/m/167931662853.3349090.18217722739345182859@wrigleys.postgresql.org
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The "partitions_total" and "partitions_done" fields were updated
as though the current level of partitioning was the only one.
In multi-level cases, not only could partitions_total change
over the course of the command, but partitions_done could go
backwards or exceed the currently-reported partitions_total.
Fix by setting partitions_total to the total number of direct
and indirect children once at command start, and then just
incrementing partitions_done at appropriate points. Invent
a new progress monitoring function "pgstat_progress_incr_param"
to simplify doing the latter. We can avoid adding cost for the
former when doing CREATE INDEX, because ProcessUtility already
enumerates the children and it's pretty easy to pass the count
down to DefineIndex. In principle the same could be done in
ALTER TABLE, but that's structurally difficult; for now, just
eat the cost of an extra find_all_inheritors scan in that case.
Ilya Gladyshev and Justin Pryzby
Discussion: https://postgr.es/m/[email protected]
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New since yesterday :-(
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These were causing "contents ... exceed the available area"
warnings in PDF builds, and also didn't quite follow our markup
conventions for function examples. To fix the overwidth
problem, reduce the number of fields shown in one example,
and also insert &zwsp; to let the header line be broken in
a reasonable place.
Discussion: https://postgr.es/m/[email protected]
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Reviewed-by: Tom Lane <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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This provides a very simple way to see the generic plan for a
parameterized query. Without this, it's necessary to define
a prepared statement and temporarily change plan_cache_mode,
which is a bit tedious.
One thing that's a bit of a hack perhaps is that we disable
execution-time partition pruning when the GENERIC_PLAN option
is given. That's because the pruning code may attempt to
fetch the value of one of the parameters, which would fail.
Laurenz Albe, reviewed by Julien Rouhaud, Christoph Berg,
Michel Pelletier, Jim Jones, and myself
Discussion: https://postgr.es/m/[email protected]
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The sslcertmode option controls whether the server is allowed and/or
required to request a certificate from the client. There are three
modes:
- "allow" is the default and follows the current behavior, where a
configured client certificate is sent if the server requests one
(via one of its default locations or sslcert). With the current
implementation, will happen whenever TLS is negotiated.
- "disable" causes the client to refuse to send a client certificate
even if sslcert is configured or if a client certificate is available in
one of its default locations.
- "require" causes the client to fail if a client certificate is never
sent and the server opens a connection anyway. This doesn't add any
additional security, since there is no guarantee that the server is
validating the certificate correctly, but it may helpful to troubleshoot
more complicated TLS setups.
sslcertmode=require requires SSL_CTX_set_cert_cb(), available since
OpenSSL 1.0.2. Note that LibreSSL does not include it.
Using a connection parameter different than require_auth has come up as
the simplest design because certificate authentication does not rely
directly on any of the AUTH_REQ_* codes, and one may want to require a
certificate to be sent in combination of a given authentication method,
like SCRAM-SHA-256.
TAP tests are added in src/test/ssl/, some of them relying on sslinfo to
check if a certificate has been set. These are compatible across all
the versions of OpenSSL supported on HEAD (currently down to 1.0.1).
Author: Jacob Champion
Reviewed-by: Aleksander Alekseev, Peter Eisentraut, David G. Johnston,
Michael Paquier
Discussion: https://postgr.es/m/[email protected]
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Discussion: https://postgr.es/m/[email protected]
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Document that the actual number of rows postgres_fdw inserts at once in
the COPY case is determined in a similar way to the INSERT case, but it
has a restriction that does not apply to the INSERT case.
Follow-up for commit 97da48246.
Reviewed-by: Daniel Gustafsson and Tatsuo Ishii
Discussion: https://postgr.es/m/CAPmGK14NMXDMW4qK9kHUzudN9t71uvrMKPna02X6zwgQJ6E1_g%40mail.gmail.com
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As a follow-up commit to 0f85db92b9, this adds <productname> markup
to another case of "PostgreSQL".
Author: Hayato Kuroda <[email protected]>
Discussion: https://postgr.es/m/TYAPR01MB58667A7C8317E267467CC599F5869@TYAPR01MB5866.jpnprd01.prod.outlook.com
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Add pgstat counter to track row updates that result in the successor
version going to a new heap page, leaving behind an original version
whose t_ctid points to the new version. The current count is shown by
the n_tup_newpage_upd column of each of the pg_stat_*_tables views.
The new n_tup_newpage_upd column complements the existing n_tup_hot_upd
and n_tup_upd columns. Tables that have high n_tup_newpage_upd values
(relative to n_tup_upd) are good candidates for tuning heap fillfactor.
Corey Huinker, with small tweaks by me.
Author: Corey Huinker <[email protected]>
Reviewed-By: Peter Geoghegan <[email protected]>
Reviewed-By: Andres Freund <[email protected]>
Discussion: https://postgr.es/m/CADkLM=ded21M9iZ36hHm-vj2rE2d=zcKpUQMds__Xm2pxLfHKA@mail.gmail.com
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This patch allows copying tables in the binary format during table
synchronization when the binary option for a subscription is enabled.
Previously, tables are copied in text format even if the subscription is
created with the binary option enabled. Copying tables in binary format
may reduce the time spent depending on column types.
A binary copy for initial table synchronization is supported only when
both publisher and subscriber are v16 or later.
Author: Melih Mutlu
Reviewed-by: Peter Smith, Shi yu, Euler Taveira, Vignesh C, Kuroda Hayato, Osumi Takamichi, Bharath Rupireddy, Hou Zhijie
Discussion: https://postgr.es/m/CAGPVpCQvAziCLknEnygY0v1-KBtg%2BOm-9JHJYZOnNPKFJPompw%40mail.gmail.com
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* Commit 3048898e dropped -ING from PHJ wait event names. Update the
corresponding barrier phases names to match.
* Rename the "DONE" phases to "FREE". That's symmetrical with
"ALLOCATE", and names the activity that actually happens in that phase
(as we do for the other phases) rather than a state. The bug fixed by
commit 8d578b9b might have been more obvious with this name.
* Rename the batch/bucket growth barriers' "ALLOCATE" phases to
"REALLOCATE", a better description of what they do.
* Update the high level comments about phases to highlight phases
are executed by a single process with an asterisk (mostly memory
management phases).
No behavior change, as this is just improving internal identifiers. The
only user-visible sign of this is that a couple of wait events' display
names change from "...Allocate" to "...Reallocate" in pg_stat_activity,
to stay in sync with the internal names.
Reviewed-by: Melanie Plageman <[email protected]>
Discussion: https://postgr.es/m/CA%2BhUKG%2BMDpwF2Eo2LAvzd%3DpOh81wUTsrwU1uAwR-v6OGBB6%2B7g%40mail.gmail.com
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