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When the list of roles gathered by roles_is_member_of() grows very
large, a Bloom filter is created to help avoid some linear searches
through the list. The threshold for creating the Bloom filter is
set arbitrarily high and may require future adjustment.
Suggested-by: Tom Lane
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/CAGvXd3OSMbJQwOSc-Tq-Ro1CAz%3DvggErdSG7pv2s6vmmTOLJSg%40mail.gmail.com
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Ordinary ALTER TABLE SET SCHEMA will also move any owned sequences
into the new schema. We failed to do likewise for foreign tables,
because AlterTableNamespaceInternal believed that only certain
relkinds could have indexes, owned sequences, or constraints.
We could simply add foreign tables to that relkind list, but it
seems likely that the same oversight could be made again in
future. Instead let's remove the relkind filter altogether.
These functions shouldn't cost much when there are no objects
that they need to process, and surely this isn't an especially
performance-critical case anyway.
Per bug #18407 from Vidushi Gupta. Back-patch to all supported
branches.
Discussion: https://postgr.es/m/18407-4fd07373d252c6a0@postgresql.org
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This commit improves the performance of pg_lfind32() in many cases
by modifying it to process the remaining "tail" of elements with
SIMD instructions instead of processing them one-by-one. Since the
SIMD code processes a large block of elements, this means that we
will process a subset of elements more than once, but that won't
affect the correctness of the result, and testing has shown that
this helps more cases than it regresses. With this change, the
standard one-by-one linear search code is only used for small
arrays and for platforms without SIMD support.
Suggested-by: John Naylor
Reviewed-by: John Naylor
Discussion: https://postgr.es/m/20231129171526.GA857928%40nathanxps13
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If we know the sort order of a CTE's output, and it is relevant
to the outer query, label the CTE's outer-query access path using
those pathkeys. This may enable optimizations such as avoiding
a sort in the outer query.
The code for hoisting pathkeys into the outer query already exists
for regular RTE_SUBQUERY subqueries, but it wasn't getting used for
CTEs, possibly out of concern for maintaining an optimization fence
between the CTE and the outer query. However, on the same arguments
used for commit f7816aec2, there seems no harm in letting the outer
query know what the inner query decided to do.
In support of this, we now remember the best Path as well as Plan
for each subquery for the rest of the planner run. There may be
future applications for having that at hand, and it surely costs
little to build one more List.
Richard Guo (minor mods by me)
Discussion: https://postgr.es/m/CAMbWs49xYd3f8CrE8-WW3--dV1zH_sDSDn-vs2DzHj81Wcnsew@mail.gmail.com
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Also add URL to hackers discussion.
Backpatch-through: master
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The musl dynamic linker saves a pointer to the process' environment
value of LD_LIBRARY_PATH very early in startup. When we move/clobber
the environment to make more room for ps status strings, we clobber
that value and thereby prevent libraries from being found via
LD_LIBRARY_PATH, which breaks the use of a temporary installation
for testing purposes. To fix, stop collecting usable space for
ps status if we notice that the variable we are about to clobber
is LD_LIBRARY_PATH. This will result in some reduction in how long
the ps status can be, but it's only likely to occur in temporary
test contexts, so it doesn't seem like a big problem. In any case,
we don't have to do it if we see we are on glibc, which surely is
where the majority of our Linux testing is done.
Thomas Munro, Bruce Momjian, and Tom Lane, per report from Wolfgang
Walther. Back-patch to all supported branches, with the hope that
we'll set up a buildfarm animal to test on this platform.
Discussion: https://postgr.es/m/fddd1cd6-dc16-40a2-9eb5-d7fef2101488@technowledgy.de
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ObjectClass is an enum whose values correspond to catalog OIDs. But
the extra layer of redirection, which is used only in small parts of
the code, and the similarity to ObjectType, are confusing and
cumbersome.
One advantage has been that some switches processing the OCLASS enum
don't have "default:" cases. This is so that the compiler tells us
when we fail to add support for some new object class. But you can
also handle that with some assertions and proper test coverage. It's
not even clear how strong this benefit is. For example, in
AlterObjectNamespace_oid(), you could still put a new OCLASS into the
"ignore object types that don't have schema-qualified names" case, and
it might or might not be wrong. Also, there are already various
OCLASS switches that do have a default case, so it's not even clear
what the preferred coding style should be.
Reviewed-by: jian he <jian.universality@gmail.com>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://www.postgresql.org/message-id/flat/CAGECzQT3caUbcCcszNewCCmMbCuyP7XNAm60J3ybd6PN5kH2Dw%40mail.gmail.com
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Author: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://www.postgresql.org/message-id/20240326.140116.1116279856046587865.horikyota.ntt@gmail.com
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Introduced by 30e144287a.
Reviewed-by: John Naylor
Discussion: https://postgr.es/m/CAD21AoCaDT%2B-ZaVjbtvumms0tyyHPNLELK2UX-MLG9XCgioaNw%40mail.gmail.com
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Since we expect that the max_bytes is in bytes, not in kilobytes, it
should not be multiplied by 1024.
Introduced by 30e144287a.
Reported-by: John Naylor, David Rowley
Reviewed-by: John Naylor
Discussion: https://postgr.es/m/CANWCAZZTE-14ofsucofTuhFsfuDGBNf%3DNZb22TMYT8bxA41oQQ%40mail.gmail.com
Discussion: https://postgr.es/m/CAApHDvojg82NDaDEpj1WEZSbVTafj%3DDRmW%2BFrkBdW8ScL4OFxA%40mail.gmail.com
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Discussion: https://postgr.es/m/CALT9ZEHNeagO5PLb4Nv9J_ZaCtp%2BArdVmbSLc0RHUzx_RPAa4w%40mail.gmail.com
Author: Pavel Borisov
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Discussion: https://postgr.es/m/CALT9ZEHNeagO5PLb4Nv9J_ZaCtp%2BArdVmbSLc0RHUzx_RPAa4w%40mail.gmail.com
Author: Pavel Borisov
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Author: Andres Freund
Reviewed-by: Pavel Borisov
Discussion: https://www.postgresql.org/message-id/flat/CAPpHfdua-YFw3XTprfutzGp28xXLigFtzNbuFY8yPhqeq6X5kg%40mail.gmail.com
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Currently, in read committed transaction isolation mode (default), we have the
following sequence of actions when tuple_update()/tuple_delete() finds
the tuple updated by the concurrent transaction.
1. Attempt to update/delete tuple with tuple_update()/tuple_delete(), which
returns TM_Updated.
2. Lock tuple with tuple_lock().
3. Re-evaluate plan qual (recheck if we still need to update/delete and
calculate the new tuple for update).
4. Second attempt to update/delete tuple with tuple_update()/tuple_delete().
This attempt should be successful, since the tuple was previously locked.
This commit eliminates step 2 by taking the lock during the first
tuple_update()/tuple_delete() call. The heap table access method saves some
effort by checking the updated tuple once instead of twice. Future
undo-based table access methods, which will start from the latest row version,
can immediately place a lock there.
Also, this commit makes tuple_update()/tuple_delete() optionally save the old
tuple into the dedicated slot. That saves efforts on re-fetching tuples in
certain cases.
The code in nodeModifyTable.c is simplified by removing the nested switch/case.
Discussion: https://postgr.es/m/CAPpHfdua-YFw3XTprfutzGp28xXLigFtzNbuFY8yPhqeq6X5kg%40mail.gmail.com
Reviewed-by: Aleksander Alekseev, Pavel Borisov, Vignesh C, Mason Sharp
Reviewed-by: Andres Freund, Chris Travers
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Put the node-type-dependent operations into switches on nodeTag.
This should ease addition of new proof rules for other expression
node types. There is no functional change, although some tests
are made in a different order than before.
Also, add a couple of new cross-checks in test_predtest.c.
James Coleman (part of a larger patch series)
Discussion: https://postgr.es/m/CAAaqYe8Bo4bf_i6qKj8KBsmHMYXhe3Xt6vOe3OBQnOaf3_XBWg@mail.gmail.com
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Discussion: https://postgr.es/m/1229327.1711160246@sss.pgh.pa.us
Backpatch-through: 13
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Many other utilities use -d to specify the database to use, but
pgbench uses it to enable debug mode. This is causing some users
to accidentally enable it. This commit changes -d to accept the
database name and introduces --dbname. Debug mode can still be
enabled with --debug. This is a backward-incompatible change, but
it has been judged to be worth the trade-off, i.e., some scripts
that use pgbench will need to be updated.
Author: Greg Sabino Mullane
Reviewed-by: Tomas Vondra, Euler Taveira, Alvaro Herrera, David Christensen
Discussion: https://postgr.es/m/CAKAnmmLjAzwVtb%3DVEaeuCtnmOLpzkJ1uJ_XiQ362YdD9B72HSg%40mail.gmail.com
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It's now possible to specify a table access method via
CREATE TABLE ... USING for a partitioned table, as well change it with
ALTER TABLE ... SET ACCESS METHOD. Specifying an AM for a partitioned
table lets the value be used for all future partitions created under it,
closely mirroring the behavior of the TABLESPACE option for partitioned
tables. Existing partitions are not modified.
For a partitioned table with no AM specified, any new partitions are
created with the default_table_access_method.
Also add ALTER TABLE ... SET ACCESS METHOD DEFAULT, which reverts to the
original state of using the default for new partitions.
The relcache of partitioned tables is not changed: rd_tableam is not
set, even if a partitioned table has a relam set.
Author: Justin Pryzby <pryzby@telsasoft.com>
Author: Soumyadeep Chakraborty <soumyadeep2007@gmail.com>
Author: Michaël Paquier <michael@paquier.xyz>
Reviewed-by: The authors themselves
Discussion: https://postgr.es/m/CAE-ML+9zM4wJCGCBGv01k96qQ3gFv4WFcFy=zqPHKeaEFwwv6A@mail.gmail.com
Discussion: https://postgr.es/m/20210308010707.GA29832%40telsasoft.com
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Spotted while reviewing a patch changing things around this area.
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The decimal conversion functions dectoint and dectolong are documented
to return ECPG_INFORMIX_NUM_OVERFLOW in case of overflows, but always
returned -1 on all errors due to incorrectly checking the returnvalue
from the PGTYPES* functions.
Author: Aidar Imamov <a.imamov@postgrespro.ru>
Discussion: https://postgr.es/m/54d2b53327516d9454daa5fb2f893bdc@postgrespro.ru
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Per buildfarm animal koel
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The new combined WAL record is now used for pruning, freezing and 2nd
pass of vacuum. This is in preparation for changing VACUUM to write a
combined prune+freeze record per page, instead of separate two
records. The new WAL record format now supports that, but the code
still always writes separate records for pruning and freezing.
This reserves separate XLOG_HEAP2_* info codes for when the pruning
record is emitted for on-access pruning or VACUUM, per Peter
Geoghegan's suggestion. The record format is identical, but having
separate info codes makes it easier analyze pruning and vacuuming with
pg_waldump.
The function to emit the new WAL record, log_heap_prune_and_freeze(),
is in pruneheap.c. The existing heap_log_freeze_plan() and its
subroutines are moved to pruneheap.c without changes, to keep them
together with log_heap_prune_and_freeze().
Author: Melanie Plageman <melanieplageman@gmail.com>
Discussion: https://www.postgresql.org/message-id/CAAKRu_azf-zH%3DDgVbquZ3tFWjMY1w5pO8m-TXJaMdri8z3933g@mail.gmail.com
Discussion: https://www.postgresql.org/message-id/CAAKRu_b2oE4GL%3Dq4g9mcByS9yT7wTQvEH9OLpabj28e%2BWKFi2A@mail.gmail.com
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It must be run on the target server and should be able to connect to
the source server (publisher) and the target server (subscriber). All
tables in the specified database(s) are included in the logical
replication setup. A pair of publication and subscription objects are
created for each database.
The main advantage of pg_createsubscriber over the common logical
replication setup is the initial data copy. It also reduces the
catchup phase.
Some prerequisites must be met to successfully run it. It is
basically the logical replication requirements. It starts creating a
publication using FOR ALL TABLES and a replication slot for each
specified database. Write recovery parameters into the target data
directory and start the target server. It specifies the LSN of the
last replication slot (replication start point) up to which the
recovery will proceed. Wait until the target server is promoted.
Create one subscription per specified database (using publication and
replication slot created in a previous step) on the target server.
Set the replication progress to the replication start point for each
subscription. Enable the subscription for each specified database on
the target server. And finally, change the system identifier on the
target server.
Author: Euler Taveira <euler.taveira@enterprisedb.com>
Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Reviewed-by: Shlok Kyal <shlok.kyal.oss@gmail.com>
Reviewed-by: Vignesh C <vignesh21@gmail.com>
Reviewed-by: Shubham Khanna <khannashubham1197@gmail.com>
Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://www.postgresql.org/message-id/flat/5ac50071-f2ed-4ace-a8fd-b892cffd33eb@www.fastmail.com
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This commit adds a new property called last_inactive_time for slots. It is
set to 0 whenever a slot is made active/acquired and set to the current
timestamp whenever the slot is inactive/released or restored from the disk.
Note that we don't set the last_inactive_time for the slots currently being
synced from the primary to the standby because such slots are typically
inactive as decoding is not allowed on those.
The 'last_inactive_time' will be useful on production servers to debug and
analyze inactive replication slots. It will also help to know the lifetime
of a replication slot - one can know how long a streaming standby, logical
subscriber, or replication slot consumer is down.
The 'last_inactive_time' will also be useful to implement inactive
timeout-based replication slot invalidation in a future commit.
Author: Bharath Rupireddy
Reviewed-by: Bertrand Drouvot, Amit Kapila, Shveta Malik
Discussion: https://www.postgresql.org/message-id/CALj2ACW4aUe-_uFQOjdWCEN-xXoLGhmvRFnL8SNw_TZ5nJe+aw@mail.gmail.com
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* Fix the comment of init_dummy_sjinfo() to remove references to
non-existing parameters 'rel1' and 'rel2'.
* Adjust consider_new_or_clause() to call init_dummy_sjinfo() to make
up a SpecialJoinInfo for inner joins like other code sites that
were adjusted in 6190d828cd2 to do so.
Author: Richard Guo <guofenglinux@gmail.com>
Reported-by: Richard Guo <guofenglinux@gmail.com>
Discussion: https://postgr.es/m/CAExHW5tHqEf3ASVqvFFcghYGPfpy7o3xnvhHwBGbJFMRH8KjNw@mail.gmail.com
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Initialize indices_tables_cell with NULL to silence the warning. Also,
refactor the place of the first assignment of indices_tables_cell.
Reported-by: Thomas Munro, David Rowley, Tom Lane, Richard Guo
Discussion: https://postgr.es/m/2348025.1711332418%40sss.pgh.pa.us
Discussion: https://postgr.es/m/E1roXs4-005UdX-1V%40gemulon.postgresql.org
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This teaches build_child_join_sjinfo() to create the dummy
SpecialJoinInfos (those created for inner joins) directly for a given
child join, skipping the unnecessary overhead of translating the
parent joinrel's SpecialJoinInfo.
To that end, this commit moves the code to initialize the dummy
SpecialJoinInfos to a new function named init_dummy_sjinfo() and
changes the few existing sites that have this code and
build_child_join_sjinfo() to call this new function.
Author: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Reviewed-by: Richard Guo <guofenglinux@gmail.com>
Reviewed-by: Amit Langote <amitlangote09@gmail.com>
Reviewed-by: Andrey Lepikhov <a.lepikhov@postgrespro.ru>
Reviewed-by: Tomas Vondra <tomas.vondra@enterprisedb.com>
Discussion: https://postgr.es/m/CAExHW5tHqEf3ASVqvFFcghYGPfpy7o3xnvhHwBGbJFMRH8KjNw@mail.gmail.com
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Specifically, this commit reduces the memory consumed by the
SpecialJoinInfos that are allocated for child joins in
try_partitionwise_join() by freeing them at the end of creating paths
for each child join.
A SpecialJoinInfo allocated for a given child join is a copy of the
parent join's SpecialJoinInfo, which contains the translated copies
of the various Relids bitmapsets and semi_rhs_exprs, which is a List
of Nodes. The newly added freeing step frees the struct itself and
the various bitmapsets, but not semi_rhs_exprs, because there's no
handy function to free the memory of Node trees.
Author: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Reviewed-by: Richard Guo <guofenglinux@gmail.com>
Reviewed-by: Amit Langote <amitlangote09@gmail.com>
Reviewed-by: Andrey Lepikhov <a.lepikhov@postgrespro.ru>
Reviewed-by: Tomas Vondra <tomas.vondra@enterprisedb.com>
Discussion: https://postgr.es/m/CAExHW5tHqEf3ASVqvFFcghYGPfpy7o3xnvhHwBGbJFMRH8KjNw@mail.gmail.com
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Coverity complained about the integer handling issue; if we start with
an arbitrary non-negative shift value, the loop may decrement it down
to something less than zero before exiting. This commit adds an
assertion to make sure the 'shift' is always 0 after the loop, and
uses 0 as the shift to get the key chunk in the following operation.
Introduced by ee1b30f12.
Reported-by: Tom Lane as per coverity
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/2089517.1711299216%40sss.pgh.pa.us
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Until now, UNION queries have often been suboptimal as the planner has
only ever considered using an Append node and making the results unique
by either using a Hash Aggregate, or by Sorting the entire Append result
and running it through the Unique operator. Both of these methods
always require reading all rows from the union subqueries.
Here we adjust the union planner so that it can request that each subquery
produce results in target list order so that these can be Merge Appended
together and made unique with a Unique node. This can improve performance
significantly as the union child can make use of the likes of btree
indexes and/or Merge Joins to provide the top-level UNION with presorted
input. This is especially good if the top-level UNION contains a LIMIT
node that limits the output rows to a small subset of the unioned rows as
cheap startup plans can be used.
Author: David Rowley
Reviewed-by: Richard Guo, Andy Fan
Discussion: https://postgr.es/m/CAApHDvpb_63XQodmxKUF8vb9M7CxyUyT4sWvEgqeQU-GB7QFoQ@mail.gmail.com
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Straight-forward index-level REINDEX is not supported with multiple jobs as
we cannot control the concurrent processing of multiple indexes depending on
the same relation. Instead, we dedicate the whole table to certain reindex
job. Thus, if indexes in the lists belong to different tables, that gives us
a fair level of parallelism.
This commit teaches get_parallel_object_list() to fetch table names for
indexes in the case of index-level REINDEX. The same tables are grouped
together in the output order, and the list of indexes is also rebuilt to
match that order. Later during processingof that list, we push indexes
belonging to the same table into the same job.
Discussion: https://postgr.es/m/CACG%3DezZU_VwDi-1PN8RUSE6mcYG%2BYx1NH_rJO4%2BKe-mKqLp%3DNw%40mail.gmail.com
Author: Maxim Orlov, Svetlana Derevyanko, Alexander Korotkov
Reviewed-by: Michael Paquier
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Check source length before checking for NUL terminator to avoid
reading one byte past the string end. Also fix unreachable bug when
caller does not expect NUL-terminated result.
Add unit test coverage of convert_case() in case_test.c, which makes
it easier to reproduce the valgrind failure.
Discussion: https://postgr.es/m/7a9fd36d-7a38-4dc2-e676-fc939491a95a@gmail.com
Reported-by: Alexander Lakhin
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Up to now we've rejected cases like
BEGIN;
CREATE TYPE rainbow AS ENUM ();
ALTER TYPE rainbow ADD VALUE 'red';
-- use the value 'red', perhaps in a constraint or index
COMMIT;
The concern is that the uncommitted enum value 'red' might get into
an index and then break the index if we roll back the ALTER ADD.
If the ALTER is in the same transaction as the CREATE then it's really
perfectly safe, but we weren't taking the trouble to identify that.
pg_dump in binary-upgrade mode will emit enum definitions that look
like the above, which up to now didn't fall foul of the unsafe-usage
check because we processed each restore command as a separate
transaction. However an upcoming patch proposes to bundle the restore
commands into large transactions to reduce XID consumption during
pg_upgrade, and that makes this behavior a problem.
To fix, remember the OIDs of enum types created in the current
transaction, and allow use of enum values that are added to one later
in the same transaction. To do this fully correctly in the presence
of subtransactions, we'd have to track subtransaction nesting level of
the CREATE and do maintenance work at every subsequent subtransaction
exit. That seems expensive, and we don't need it to satisfy pg_dump's
usage. Hence, apply the additional optimization only when the CREATE
and ALTER are at outermost transaction level.
Patch by me, reviewed by Andrew Dunstan
Discussion: https://postgr.es/m/1548468.1711220438@sss.pgh.pa.us
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It wasn't getting freed in one code path, which Coverity identified as
a resource leak. It's probably of little consequence, but re-ordering
the code into the correct sequence is no more work than dismissing the
complaint. Minor oversight in commit a145f424d.
While here, improve the unreasonably clunky coding of
FindDbnameInConnParams: use of an output parameter is unnecessary
and prone to uninitialized-variable problems.
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Coverity identified this as a resource leak. It's surely of no
consequence given that the function is called only once per run, but
freeing the storage is no more work than dismissing the complaint.
Minor oversight in commit 347758b12.
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We need a slightly different "cp" incantation to make sure top-level
"dot" files, such as ".git", are also copied.
This is relevant for example if a script wants to execute a git
command. This currently does not happen, but it has come up while
testing other patches.
Reviewed-by: Tristan Partin <tristan@neon.tech>
Discussion: https://www.postgresql.org/message-id/flat/40e80f77-a294-4f29-a16f-e21bc7bc75fc%40eisentraut.org
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Add PERIOD clause to foreign key constraint definitions. This is
supported for range and multirange types. Temporal foreign keys check
for range containment instead of equality.
This feature matches the behavior of the SQL standard temporal foreign
keys, but it works on PostgreSQL's native ranges instead of SQL's
"periods", which don't exist in PostgreSQL (yet).
Reference actions ON {UPDATE,DELETE} {CASCADE,SET NULL,SET DEFAULT}
are not supported yet.
Author: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Reviewed-by: jian he <jian.universality@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CA+renyUApHgSZF9-nd-a0+OPGharLQLO=mDHcY4_qQ0+noCUVg@mail.gmail.com
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This reverts commit 6acb0a628eccab8764e0306582c2b7e2a1441b9b since
LibreSSL didn't support ASN1_TIME_diff until OpenBSD 7.1, leaving
the older OpenBSD animals in the buildfarm complaining.
Per plover in the buildfarm.
Discussion: https://postgr.es/m/F0DF7102-192D-4C21-96AE-9A01AE153AD1@yesql.se
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Up to now, all of the "catcache list" objects within a catalog cache
were just chained together on a single dlist, requiring O(N) time to
search. Remarkably, we've not had serious performance problems with
that so far; but we got a complaint of a bad performance regression
from v15 in a case with a large number of roles in the system, which
traced down to O(N^2) total time when we probed N catcache lists.
Replace that data structure with a hashtable having an enlargeable
number of dlists, in an exactly parallel way to the data structure
we've used for years for the plain CatCTup cache members. The extra
cost of maintaining a hash table seems negligible, since we were
already computing a hash value for list searches.
Normally this'd be HEAD-only material, but in view of the performance
regression it seems advisable to back-patch into v16. In the v16
version of the patch, leave the dead cc_lists field where it is and
add the new fields at the end of struct catcache, to avoid possible
ABI breakage in case any external code is looking at these structs.
(We assume no external code is actually allocating new catcache
structs.)
Per report from alex work.
Discussion: https://postgr.es/m/CAGvXd3OSMbJQwOSc-Tq-Ro1CAz=vggErdSG7pv2s6vmmTOLJSg@mail.gmail.com
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This adds the X509 attributes notBefore and notAfter to sslinfo
as well as pg_stat_ssl to allow verifying and identifying the
validity period of the current client certificate. OpenSSL has
APIs for extracting notAfter and notBefore, but they are only
supported in recent versions so we have to calculate the dates
by hand in order to make this work for the older versions of
OpenSSL that we still support.
Original patch by Cary Huang with additional hacking by Jacob
and myself.
Author: Cary Huang <cary.huang@highgo.ca>
Co-author: Jacob Champion <jacob.champion@enterprisedb.com>
Co-author: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/182b8565486.10af1a86f158715.2387262617218380588@highgo.ca
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It was against intended skipping prechecking keys optimization in the
first page of range queries to not influence point queries performance.
Reported-by: Anton Melnikov
Discussion: https://postgr.es/m/30cd7524-b9f1-4cf8-9c4a-223eb2e34441%40postgrespro.ru
Author: Pavel Borisov
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This changes nodeToString() to not output the actual value of location
fields in nodes, but instead it writes -1. This mirrors the fact that
stringToNode() also does not read location field values but always
stores -1.
For most uses of nodeToString(), which is to store nodes in catalog
fields, this is more useful. We don't store original query texts in
catalogs, so any lingering query location values are not meaningful.
For debugging purposes, there is a new nodeToStringWithLocations(),
which mirrors the existing stringToNodeWithLocations(). This is used
for WRITE_READ_PARSE_PLAN_TREES and nodes/print.c functions, which
covers all the debugging uses.
Reviewed-by: Matthias van de Meent <boekewurm+postgres@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CAEze2WgrCiR3JZmWyB0YTc8HV7ewRdx13j0CqD6mVkYAW+SFGQ@mail.gmail.com
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Till now, the reason for replication slot invalidation is not tracked
directly in pg_replication_slots. A recent commit 007693f2a3 added
'conflict_reason' to show the reasons for slot conflict/invalidation, but
only for logical slots.
This commit adds a new column 'invalidation_reason' to show invalidation
reasons for both physical and logical slots. And, this commit also turns
'conflict_reason' text column to 'conflicting' boolean column (effectively
reverting commit 007693f2a3). The 'conflicting' column is true for
invalidation reasons 'rows_removed' and 'wal_level_insufficient' because
those make the slot conflict with recovery. When 'conflicting' is true,
one can now look at the new 'invalidation_reason' column for the reason
for the logical slot's conflict with recovery.
The new 'invalidation_reason' column will also be useful to track other
invalidation reasons in the future commit.
Author: Bharath Rupireddy
Reviewed-by: Bertrand Drouvot, Amit Kapila, Shveta Malik
Discussion: https://www.postgresql.org/message-id/ZfR7HuzFEswakt/a%40ip-10-97-1-34.eu-west-3.compute.internal
Discussion: https://www.postgresql.org/message-id/CALj2ACW4aUe-_uFQOjdWCEN-xXoLGhmvRFnL8SNw_TZ5nJe+aw@mail.gmail.com
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Put the fields alias and eref earlier in the struct, so that it
matches the order in _outRangeTblEntry()/_readRangeTblEntry(). This
helps if we ever want to fully automate out/read of RangeTblEntry.
Also, it makes dumps in the debugger easier to read in the same way.
Internally, this makes no difference.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://www.postgresql.org/message-id/flat/4b27fc50-8cd6-46f5-ab20-88dbaadca645@eisentraut.org
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This is part of an effort to reduce the number of special cases in the
automatically generated node support functions.
This patch removes _jumbleRangeTblEntry() and instead adds per-field
query_jumble_ignore annotations to match the behavior of the previous
custom code. The pg_stat_statements test suite has some coverage of
this. It gets rid of the switch on rtekind; this should be
technically correct, since we do the equal and copy functions like
this also.
The list of fields to jumble has been checked and is considered
correct as of 8b29a119fd.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://www.postgresql.org/message-id/flat/4b27fc50-8cd6-46f5-ab20-88dbaadca645@eisentraut.org
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Reformat some comments in node field definitions to avoid long lines.
This makes room for per-field annotations. Similar to 835d476fd2.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://www.postgresql.org/message-id/flat/4b27fc50-8cd6-46f5-ab20-88dbaadca645@eisentraut.org
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Clarify that RangeTblEntry.lateral reflects whether LATERAL was
specified in the statement (as opposed to whether lateralness is
implicit). Also, the list of applicable entry types was incomplete.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://www.postgresql.org/message-id/flat/4b27fc50-8cd6-46f5-ab20-88dbaadca645@eisentraut.org
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The idea to use a union in the definition of RangeTblEntry is clearly
not being pursued.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://www.postgresql.org/message-id/flat/4b27fc50-8cd6-46f5-ab20-88dbaadca645@eisentraut.org
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The error message being fixed was added in 6185c9737c.
While at it, add an "a" to the sentence.
Reported-by: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/20240322.095149.895185546948714852.horikyota.ntt%40gmail.com
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Commit 9a83d56b38c added support for allowing pg_dumpall to dump
roles without including passwords, which accidentally made dumps
omit COMMENTs on roles. This fixes it by using pg_authid to get
the comment.
Backpatch to all supported versions. Patch simultaneously written
independently by Álvaro and myself.
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Author: Daniel Gustafsson <daniel@yesql.se>
Reported-by: Bartosz Chroł <bartosz.chrol@handen.pl>
Discussion: https://postgr.es/m/AS8P194MB1271CDA0ADCA7B75FCD8E767F7332@AS8P194MB1271.EURP194.PROD.OUTLOOK.COM
Discussion: https://postgr.es/m/CAEP4nAz9V4H41_4ESJd1Gf0v%3DdevkqO1%3Dpo91jUw-GJSx8Hxqg%40mail.gmail.com
Backpatch-through: v12
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