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perror() is not used in postgres anymore out of policy, this replaces
the final callsites with the custom postgres logging framework.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://postgr.es/m/89B00F63-40F7-4D82-8353-DC9CABBAC1D1@yesql.se
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do_watch had some leftover logic for enabling siglongjmp out of
waiting for input. That's never done anything on Windows (cf.
psql_cancel_callback), and do_watch no longer relies on it for
non-Windows, so let's drop it.
Also, when the user cancels \watch by pressing ^C, the Windows
code would run the query one more time before exiting. That doesn't
seem very desirable, and it's not what happens on other platforms.
Use the "done" flag similarly to non-Windows to avoid the extra query
execution.
Yugo Nagata (with minor fixes by me)
Discussion: https://postgr.es/m/20240305220552.85fd4afd6b6b8103bf4fe3d0@sraoss.co.jp
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... and in particular don't return them as replica identity.
The motivation for this change is letting the primary keys be seen by
code that derives NOT NULL constraints from them, when creating
inheritance children; before this change, if you had a deferrable PK,
pg_dump would not recreate the attnotnull marking properly, because the
column would not be considered as having anything to back said marking
after dropping the throwaway NOT NULL constraint.
The reason we don't want these PKs as replica identities is that
replication can corrupt data, if the uniqueness constraint is
transiently broken.
Reported-by: Amul Sul <sulamul@gmail.com>
Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com>
Discussion: https://postgr.es/m/CAAJ_b94QonkgsbDXofakHDnORQNgafd1y3Oa5QXfpQNJyXyQ7A@mail.gmail.com
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You might run out of stack space with recursion, which is not nice in
functions that might be used e.g. at cleanup after transaction
abort. MemoryContext contains pointer to parent and siblings, so we
can traverse a tree of contexts iteratively, without using
stack. Refactor the functions to do that.
MemoryContextStats() still recurses, but it now has a limit to how
deep it recurses. Once the limit is reached, it prints just a summary
of the rest of the hierarchy, similar to how it summarizes contexts
with lots of children. That seems good anyway, because a context dump
with hundreds of nested contexts isn't very readable.
Report by Egor Chindyaskin and Alexander Lakhin.
Discussion: https://postgr.es/m/1672760457.940462079%40f306.i.mail.ru
Author: Heikki Linnakangas
Reviewed-by: Robert Haas, Andres Freund, Alexander Korotkov, Tom Lane
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The function recurses, but didn't perform stack-depth checks. It's
just a debugging aid, so instead of the usual check_stack_depth()
call, stop the printing if we'd risk stack overflow.
Here's an example of how to test this:
(n=1000000; printf "BEGIN;"; for ((i=1;i<=$n;i++)); do printf "SAVEPOINT s$i;"; done; printf "SET log_min_messages = 'DEBUG5'; SAVEPOINT sp;") | psql >/dev/null
In the passing, swap building the list of child XIDs and recursing to
parent. That saves memory while recursing, reducing the risk of out of
memory errors with lots of subtransactions. The saving is not very
significant in practice, but this order seems more logical anyway.
Report by Egor Chindyaskin and Alexander Lakhin.
Discussion: https://www.postgresql.org/message-id/1672760457.940462079%40f306.i.mail.ru
Author: Heikki Linnakangas
Reviewed-by: Robert Haas, Andres Freund, Alexander Korotkov
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Usually the compiler will optimize away the tail recursion anyway, but
if it doesn't, you can drive the function into stack overflow. For
example:
(n=1000000; printf "BEGIN;"; for ((i=1;i<=$n;i++)); do printf "SAVEPOINT s$i;"; done; printf "ERROR; COMMIT;") | psql >/dev/null
In order to get better readability and less changes to the existing code the
recursion-replacing loop is implemented as a wrapper function.
Report by Egor Chindyaskin and Alexander Lakhin.
Discussion: https://postgr.es/m/1672760457.940462079%40f306.i.mail.ru
Author: Alexander Korotkov, Heikki Linnakangas
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This reverts commit 9552e3ace317ac8bb0a80613c0e5cd6536c96dc8.
I (john) forgot to revert this locally when a more principled
fix was found, which has the same message title.
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Add PGDLLIMPORT to pg_popcount32/64. In passing, fix a typo.
Diagnosis by Masahiko Sawada, patch by David Rowley
Per buildfarm members drongo and fairywren
Discussion: https://postgr.es/m/CAD21AoAMm1mQd%3Dw4PrfrKK%3DOMP8j8%3D7ntJRPF8%2B%3D10iUuvwiCA%40mail.gmail.com
Discussion: https://postgr.es/m/CAApHDvov7724UrD1Ug0D1eV%2B9Pd_x5VEQmw-6HVG9w1WdCxXPA%40mail.gmail.com
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Add back "link_with" directive, similar to the one removed by 1f1d73a8b,
but only for Windows, but use the "_shlib" variation.
Diagnosis by Masahiko Sawada, proposed fix adjusted and tested by me
Per buildfarm members drongo and fairywren
Discussion: https://postgr.es/m/CAD21AoAMm1mQd%3Dw4PrfrKK%3DOMP8j8%3D7ntJRPF8%2B%3D10iUuvwiCA%40mail.gmail.com
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This patch provides a way to ensure that physical standbys that are
potential failover candidates have received and flushed changes before
the primary server making them visible to subscribers. Doing so guarantees
that the promoted standby server is not lagging behind the subscribers
when a failover is necessary.
The logical walsender now guarantees that all local changes are sent and
flushed to the standby servers corresponding to the replication slots
specified in 'standby_slot_names' before sending those changes to the
subscriber.
Additionally, the SQL functions pg_logical_slot_get_changes,
pg_logical_slot_peek_changes and pg_replication_slot_advance are modified
to ensure that they process changes for failover slots only after physical
slots specified in 'standby_slot_names' have confirmed WAL receipt for those.
Author: Hou Zhijie and Shveta Malik
Reviewed-by: Masahiko Sawada, Peter Smith, Bertrand Drouvot, Ajin Cherian, Nisha Moond, Amit Kapila
Discussion: https://postgr.es/m/514f6f2f-6833-4539-39f1-96cd1e011f23@enterprisedb.com
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In OpenSSL 3.0.0 and later, ERR_reason_error_string randomly refuses
to provide a string for error codes representing system errno values
(e.g., "No such file or directory"). There is a poorly-documented way
to extract the errno from the SSL error code in this case, so do that
and apply strerror, rather than falling back to reporting the error
code's numeric value as we were previously doing.
Problem reported by David Zhang, although this is not his proposed
patch; it's instead based on a suggestion from Heikki Linnakangas.
Back-patch to all supported branches, since any of them are likely
to be used with recent OpenSSL.
Discussion: https://postgr.es/m/b6fb018b-f05c-4afd-abd3-318c649faf18@highgo.ca
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This option can be used to switch a relation to use the access method
set by default_table_access_method when running the command.
This has come up when discussing the possibility to support setting
pg_class.relam for partitioned tables (left out here as future work),
while being useful on its own for relations with physical storage as
these must have an access method set.
Per suggestion from Justin Pryzby.
Author: Michael Paquier
Reviewed-by: Justin Pryzby
Discussion: https://postgr.es/m/ZeCZ89xAVFeOmrQC@pryzbyj2023
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Since b0483263dda0, this field can be used to store an access method
name for ALTER TABLE, but access methods were not mentioned in the
field's description.
Issue noticed while working on the area.
Discussion: https://postgr.es/m/ZeWKgCtk6xiAsDsc@paquier.xyz
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Implements Unicode simple case mapping, in which all code points map
to exactly one other code point unconditionally.
These tables are generated from UnicodeData.txt, which is already
being used by other infrastructure in src/common/unicode. The tables
are checked into the source tree, so they only need to be regenerated
when we update the Unicode version.
In preparation for the builtin collation provider, and possibly useful
for other callers.
Discussion: https://postgr.es/m/ff4c2f2f9c8fc7ca27c1c24ae37ecaeaeaff6b53.camel%40j-davis.com
Reviewed-by: Peter Eisentraut, Daniel Verite, Jeremy Schneider
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The inh field of RangeTblEntry was doubly confusingly documented.
Some parts of the code insisted that it was only valid for
RTE_RELATION entries, other parts said the field was valid for all
entries. Neither was quite correct. More correctly, the field is
valid for RTE_RELATION entries but is also used in the planner for
RTE_SUBQUERY entries. So it makes more sense to group it with other
fields that are primarily for RTE_RELATION but borrowed by
RTE_SUBQUERY. (The exact position was chosen so that it is next to
relkind for better struct packing, and next to relid, since relid and
inh are sort of the input fields and the others are filled in later.)
Also add documentation for the planner's use at the struct definition.
Discussion: https://www.postgresql.org/message-id/6c1fbccc-85c8-40d3-b08b-4f47f2093711@eisentraut.org
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Remove apparently useless "link_with" directive. Even if this isn't the
root cause, it makes the .build file more like the other test modules.
Reviewed by Masahiko Sawada
Follow-up to ee1b30f12, per buildfarm members olingo and grassquit.
Discussion: https://postgr.es/m/CANWCAZaJAaO8MimTU%2BY-DZutM6HQLQu%3DK2HyoQULdB3v_6BSCg%40mail.gmail.com
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When an UPDATE or DELETE action in MERGE returns TM_SelfModified,
there are 2 possible causes:
1). The target tuple was already updated or deleted by the current
command. This can happen if the target row joins to more than one
source row, and the SQL standard explicitly says that this must be
an error.
2). The target tuple was already updated or deleted by a later command
in the current transaction. This can happen if the tuple is
modified by a BEFORE trigger or a volatile function used in the
query, and should be an error for the same reason that it is in a
plain UPDATE or DELETE command.
In MERGE's primary error handling block, it failed to check for (2),
causing it to return a misleading error message in such cases.
In the secondary error handling block, following a concurrent update
from another session, it failed to check for (1), causing it to
silently ignore target rows joined to more than one source row,
instead of reporting an error.
Fix this, and add tests for both of these cases.
Per report from Wenjiang Zhang. Back-patch to v15, where MERGE was
introduced.
Discussion: https://postgr.es/m/tencent_41DE0FF443FE14B94A5898D373792109E408%40qq.com
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Follow-up to ee1b30f12, per buildfarm member mamba.
Discussion: https://postgr.es/m/CANWCAZYwyRMU%2BOTVOjK%3Dno1hm-W3ZQ5vrSFM1MFAaLtLydvwzA%40mail.gmail.com
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Per buildfarm members sifaka and longfin, clang with
-Wtypedef-redefinition warns of duplicate typedefs unless building with
C11. Follow-up to ee1b30f12.
Masahiko Sawada
Discussion: https://postgr.es/m/CANWCAZauSg%3DLUbBbXhpeQtBuPifmzQNTYS6O8NsoAPz1zL-Txg%40mail.gmail.com
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This implements a radix tree data structure based on the design in
"The Adaptive Radix Tree: ARTful Indexing for Main-Memory Databases"
by Viktor Leis, Alfons Kemper, and ThomasNeumann, 2013. The main
technique that makes it adaptive is using several different node types,
each with a different capacity of elements, and a different algorithm
for accessing them. The nodes start small and grow/shrink as needed.
The main advantage over hash tables is efficient sorted iteration and
better memory locality when successive keys are lexicographically
close together. The implementation currently assumes 64-bit integer
keys, and traversing the tree is in general slower than a linear
probing hash table, so this is not a general-purpose associative array.
The paper describes two other techniques not implemented here,
namely "path compression" and "lazy expansion". These can further
reduce memory usage and speed up traversal, but the former would add
significant complexity and the latter requires storing the full key
with the value. We do trivially compress the path when leading bytes
of the key are zeros, however.
For value storage, we use "combined pointer/value slots", as
recommended in the paper. Values of size equal or smaller than the the
platform's pointer type are stored in the array of child pointers in
the last level node, while larger values are each stored in a separate
allocation. This is for now fixed at compile time, but it would be
fairly trivial to allow determining at runtime how variable-length
values are stored.
One innovation in our implementation compared to the ART paper is
decoupling the notion of node "size class" from "kind". The size
classes within a given node kind have the same underlying type, but
a variable capacity for children, so we can introduce additional node
sizes with little additional code.
To enable different use cases to specialize for different value types
and for shared/local memory, we use macro-templatized code generation
in the same manner as simplehash.h and sort_template.h.
Future commits will use this infrastructure for storing TIDs.
Patch by Masahiko Sawada and John Naylor, but a substantial amount of
credit is due to Andres Freund, whose proof-of-concept was a valuable
source of coding idioms and awareness of performance pitfalls, and
who reviewed earlier versions.
Discussion: https://postgr.es/m/CAD21AoAfOZvmfR0j8VmZorZjL7RhTiQdVttNuC4W-Shdc2a-AA%40mail.gmail.com
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This reverts commit 08a52ab151ca, due to some sporadic instability in
the test. Getting the test right should require some redesign with a
second injection point, but let's revert it for now to avoid these
issues in the CI as a lot of patches are under discussion in this last
commit fest.
Per buildfarm members hachi and gokiburi.
Discussion: https://postgr.es/m/ZekQQHCrIqLVpGz5@paquier.xyz
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This reverts commit eae7be600be7, following a discussion with Tom Lane,
due to concerns that this impacts the decisions made by the planner for
the number of workers spawned based on the inlining and const-folding of
index expressions and predicate for cases that would have worked until
this commit.
Discussion: https://postgr.es/m/162802.1709746091@sss.pgh.pa.us
Backpatch-through: 12
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Provide functions to test for Unicode properties, such as Alphabetic
or Cased. These functions use tables derived from Unicode data files,
similar to the tables for Unicode normalization or general category,
and those tables can be updated with the 'update-unicode' build
target.
Use Unicode properties to provide functions to test for regex
character classes, like 'punct' or 'alnum'.
Infrastructure in preparation for a builtin collation provider, and
may also be useful for other callers.
Discussion: https://postgr.es/m/ff4c2f2f9c8fc7ca27c1c24ae37ecaeaeaff6b53.camel%40j-davis.com
Reviewed-by: Daniel Verite, Peter Eisentraut, Jeremy Schneider
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In the corner case where a function returning RECORD has been
simplified to a RECORD constant or an inlined ROW() expression,
ExecInitFunctionScan failed to cross-check the function's result
rowtype against the coldeflist provided by the calling query.
That happened because get_expr_result_type is able to extract a
tupdesc from such expressions, which led ExecInitFunctionScan to
ignore the coldeflist. (Instead, it used the extracted tupdesc
to check the function's output, which of course always succeeds.)
I have not been able to demonstrate any really serious consequences
from this, because if some column of the result is of the wrong
type and is directly referenced by a Var of the calling query,
CheckVarSlotCompatibility will catch it. However, we definitely do
fail to report the case where the function returns more columns than
the coldeflist expects, and in the converse case where it returns
fewer columns, we get an assert failure (but, seemingly, no worse
results in non-assert builds).
To fix, always build the expected tupdesc from the coldeflist if there
is one, and consult get_expr_result_type only when there isn't one.
Also remove the failing Assert, even though it is no longer reached
after this fix. It doesn't seem to be adding anything useful, since
later checking will deal with cases with the wrong number of columns.
The only other place I could find that is doing something similar
is inline_set_returning_function. There's no live bug there because
we cannot be looking at a Const or RowExpr, but for consistency
change that code to agree with ExecInitFunctionScan.
Per report from PetSerAl. After some debate I've concluded that
this should be back-patched. There is a small risk that somebody
has been relying on such a case not throwing an error, but I judge
this outweighed by the risk that I've missed some way in which the
failure to cross-check has worse consequences than sketched above.
Discussion: https://postgr.es/m/CAKygsHSerA1eXsJHR9wft3Gn3wfHQ5RfP8XHBzF70_qcrrRvEg@mail.gmail.com
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The first argument of vshrq_n_s8 needs to be a signed vector type,
but it was passed unsigned. Clang is more lax with conversion, but
gcc needs a cast.
Fix by me, tested by Masahiko Sawada
Per buildfarm members splitfin, batta, widowbird, snakefly, parula,
massasauga
Discussion: https://postgr.es/m/20240306074106.mg6w4koohdlworbs%40alap3.anarazel.de
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As coded, the planner logic that calculates the number of parallel
workers to use for a parallel index build uses expressions and
predicates from the relcache, which are flattened for the planner by
eval_const_expressions().
As reported in the bug, an immutable parallel-unsafe function flattened
in the relcache would become a Const, which would be considered as
parallel-safe, even if the predicate or the expressions including the
function are not safe in parallel workers. Depending on the expressions
or predicate used, this could cause the parallel build to fail.
Tests are included that check parallel index builds with parallel-unsafe
predicate and expressions. Two routines are added to lsyscache.h to be
able to retrieve expressions and predicate of an index from its pg_index
data.
Reported-by: Alexander Lakhin
Author: Tender Wang
Reviewed-by: Jian He, Michael Paquier
Discussion: https://postgr.es/m/CAHewXN=UaAaNn9ruHDH3Os8kxLVmtWqbssnf=dZN_s9=evHUFA@mail.gmail.com
Backpatch-through: 12
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Move the logic for selecting appropriate pg_bitutils.h
functions based on word size to bitmapset.h for wider
visibility.
Reviewed (in a previous version) by Tom Lane
Discussion: https://postgr.es/m/CAFBsxsFW2JjTo58jtDB%2B3sZhxMx3t-3evew8%3DAcr%2BGGhC%2BkFaA%40mail.gmail.com
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vector8_min - helper for emulating ">=" semantics
vector8_highbit_mask - used to turn the result of a vector
comparison into a bitmask
Masahiko Sawada
Reviewed by Nathan Bossart, with additional adjustments by me
Discussion: https://postgr.es/m/CAFBsxsHbBm_M22gLBO%2BAZT4mfMq3L_oX3wdKZxjeNnT7fHsYMQ%40mail.gmail.com
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This commit adds a recovery test to provide coverage for the bug fixed
in 818fefd8fd, using an injection point to wait just after the process
of an active slot is killed. The trick is to give enough time for
effective_xmin and effective_catalog_xmin to advance so as the slot
invalidation robustness can be checked since the active process is
killed without holding its slot's mutex for a short time.
Author: Bertrand Drouvot
Discussion: https://postgr.es/m/ZdyZya4YrNapWKqz@ip-10-97-1-34.eu-west-3.compute.internal
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The copy_file_range() system call is available on at least Linux and
FreeBSD, and asks the kernel to use efficient ways to copy ranges of a
file. Options available to the kernel include sharing block ranges
(similar to --clone mode), and pushing down block copies to the storage
layer.
For automated testing, see PG_TEST_PG_UPGRADE_MODE. (Perhaps in a later
commit we could consider setting this mode for one of the CI targets.)
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://postgr.es/m/CA%2BhUKGKe7Hb0-UNih8VD5UNZy5-ojxFb3Pr3xSBBL8qj2M2%3DdQ%40mail.gmail.com
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Author: Richard Guo
Discussion: https://postgr.es/m/CAMbWs4-qjotfa7G=5PEOw4LDDDX58MmTwDdpdoU3Quse_BKv1Q@mail.gmail.com
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Apparently, pgindent got confused by the double space. The first time
I ran it, it moved the function name to the next line. The second time
I ran it, it moved the function name back, but without the double
space.
Now the results appear stable.
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I renamed the function in commit 024c521117, but missed these
comments.
Reported-by: Richard Guo
Discussion: https://www.postgresql.org/message-id/CAMbWs4-jR6qc7JRMKwz-zXQy_AYLUZ3PHjGep4B91of321cqWw@mail.gmail.com
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When perminfoindex was added, it was just added at the end of the
block. It would make sense to keep it closer to more related fields.
In passing, also add an inline comment, like the other fields have.
(Other field reorderings and documentation improvements in
RangeTblEntry are being discussed, but it's better not to mix them
together.)
Discussion: https://www.postgresql.org/message-id/flat/6c1fbccc-85c8-40d3-b08b-4f47f2093711%40eisentraut.org
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Remove an extra & operator, per Tom Lane. My bugs, introduced with
commit 53c2a97a9266.
Discussion: https://postgr.es/m/3885480.1709590472@sss.pgh.pa.us
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When this code was written the duplicity didn't matter, but with all the
SLRU-bank stuff we just added, it has become excessive. Turn it into a
simpler loop with no code duplication. Also add a test so that this
code becomes covered.
Discussion: https://postgr.es/m/202403041517.3a35jw53os65@alvherre.pgsql
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pg_constraint.conwithoutoverlaps was recently added to support primary
keys and unique constraints with the WITHOUT OVERLAPS clause. An
upcoming patch provides the foreign-key side of this functionality,
but the syntax there is different and uses the keyword PERIOD. It
would make sense to use the same pg_constraint field for both of
these, but then we should pick a more general name that conveys "this
constraint has a temporal/period-related feature". conperiod works
for that and is nicely compact. Changing this now avoids possibly
having to introduce versioning into clients. Note there are still
some "without overlaps" variables left, which deal specifically with
the parsing of the primary key/unique constraint feature.
Author: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Discussion: https://www.postgresql.org/message-id/flat/CA+renyUApHgSZF9-nd-a0+OPGharLQLO=mDHcY4_qQ0+noCUVg@mail.gmail.com
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Commit 024c521117 replaced backend_id with proc_number.
Reported-by: Alexander Lakhin
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Use GUC_ACTION_SAVE rather than GUC_ACTION_SET, necessary for working
with parallel query.
Now that the call requires more arguments, wrap the call in a new
function to avoid code duplication and offer a place for a comment.
Discussion: https://postgr.es/m/E1rhJpO-0027Wf-9L@gemulon.postgresql.org
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The error message(s) were reporting the stats kind of 'f', which is not
correct as that's for the "dependencies" statistics kind.
Reported-by: Horst Reiterer
Reviewed-by: Richard Guo
Discussion: https://postgr.es/m/18375-ba99383eb9062d6a@postgresql.org
Backpatch-through: 12, where MCV extended stats were added.
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While executing maintenance operations (ANALYZE, CLUSTER, REFRESH
MATERIALIZED VIEW, REINDEX, or VACUUM), set search_path to
'pg_catalog, pg_temp' to prevent inconsistent behavior.
Functions that are used for functional indexes, in index expressions,
or in materialized views and depend on a different search path must be
declared with CREATE FUNCTION ... SET search_path='...'.
This change was previously committed as 05e1737351, then reverted in
commit 2fcc7ee7af because it was too late in the cycle.
Preparation for the MAINTAIN privilege, which was previously reverted
due to search_path manipulation hazards.
Discussion: https://postgr.es/m/d4ccaf3658cb3c281ec88c851a09733cd9482f22.camel@j-davis.com
Discussion: https://postgr.es/m/E1q7j7Y-000z1H-Hr%40gemulon.postgresql.org
Discussion: https://postgr.es/m/e44327179e5c9015c8dda67351c04da552066017.camel%40j-davis.com
Reviewed-by: Greg Stark, Nathan Bossart, Noah Misch
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Presently, if an archive module's check_configured_cb callback
returns false, a generic WARNING message is emitted, which
unfortunately provides no actionable details about the reason why
the module is not configured. This commit introduces a macro that
archive module authors can use to add a DETAIL line to this WARNING
message.
Co-authored-by: Tung Nguyen
Reviewed-by: Daniel Gustafsson, Álvaro Herrera
Discussion: https://postgr.es/m/4109578306242a7cd5661171647e11b2%40oss.nttdata.com
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Auto-generated array types, multirange types, and relation rowtypes
are treated as dependent objects: they can't be dropped separately
from the base object, nor can they have their own ownership or
permissions. We previously felt that, for objects that are in an
extension, only the base object needs to be listed as an extension
member in pg_depend. While that's sufficient to prevent inappropriate
drops, it results in undesirable answers if someone asks whether a
dependent type belongs to the extension. It looks like the dependent
type is just some random separately-created object that happens to
depend on the base object. Notably, this results in postgres_fdw
concluding that expressions involving an array type are not shippable
to the remote server, even when the defining extension has been
whitelisted.
To fix, cause GenerateTypeDependencies to make extension dependencies
for dependent types as well as their base objects, and adjust
ExecAlterExtensionContentsStmt so that object addition and removal
operations recurse to dependent types. The latter change means that
pg_upgrade of a type-defining extension will end with the dependent
type(s) now also listed as extension members, even if they were
not that way in the source database. Normally we want pg_upgrade
to precisely reproduce the source extension's state, but it seems
desirable to make an exception here.
This is arguably a bug fix, but we can't back-patch it since it
causes changes in the expected contents of pg_depend. (Because
it does, I've bumped catversion, even though there's no change
in the immediate post-initdb catalog contents.)
Tom Lane and David Geier
Discussion: https://postgr.es/m/4a847c55-489f-4e8d-a664-fc6b1cbe306f@gmail.com
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Return a pointer to the manifest_data instead of individual pointers
to relevant data stored within the manifest_data object. The previous
approach scales poorly if we add more things to the backup manifest,
as has been proposed.
Amul Sul, reviewed by Sravan Velagandula, Michael Paquier, and me.
Discussion: http://postgr.es/m/CAAJ_b95=1LONf99-M_ep588fL_WgLJfdnb7XG4GWE7JDD22E4w@mail.gmail.com
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Apparently, I neglected to pgindent the prior commit.
Per buildfarm.
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After XLOG_DBASE_CREATE_FILE_COPY, a correct incremental backup needs
to copy in full everything with the database and tablespace OID
mentioned in that record; but that record doesn't specifically mention
the blocks, or even the relfilenumbers, of the affected relations.
As a result, we were failing to copy data that we should have copied.
To fix, enter the DB OID and tablespace OID into the block reference
table with relfilenumber 0 and limit block 0; and treat that as a
limit block of 0 for every relfilenumber whose DB OID and tablespace
OID match.
Also, add a test case.
Patch by me, reviewed by Noah Misch.
Discussion: http://postgr.es/m/CA+Tgmob0xa=ByvGLMdAgkUZyVQE=r4nyYZ_VEa40FCfEDFnTKA@mail.gmail.com
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Apparently, buildfarm animal crake has the adminpack regression DB
named as "regression_adminpack" in some branches. Not clear why
I didn't see that when testing here. In any case, drop that too.
Discussion: https://postgr.es/m/0CFB76D0-0510-48B2-9916-1199F93BC28C@yesql.se
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The backend treats GUC names case-insensitively, so this code should
too. This avoids ending up with a confusing set of redundant entries
in the generated postgresql.conf file.
Per report from Kyotaro Horiguchi. Back-patch to v16 where this
feature was added (in commit 3e51b278d).
Discussion: https://postgr.es/m/20230928.164904.2153358973162534034.horikyota.ntt@gmail.com
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After commit 53c2a97a9266, the code flow around the "retry" goto label
in GetMultiXactIdMembers was confused about what was possible: we never
return there with a held lock, so there's no point in testing for one.
This realization lets us simplify the code a bit. While at it, make the
scope of a couple of local variables in the same function a bit tighter.
Per Coverity.
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