The patch for MDEV-18319 BIGINT UNSIGNED Performance issue
fixed this problem in 10.5.23.

This patch adds only an MTR test to cover MDEV-18319.

Before patch, maintenance timer will tick every 0.4 seconds.
After this patch, timer will tick every 0.4 seconds when necessary(
there are delayed thread creation), switching off completely after 20
seconds of being idle.

Only locked will participate in the query in this case. Chances are
that not-locked partitions were not opened, which is the cause of the
crash in the added test case spider/bugfix.mdev_33731 without this
patch.

fixes sporadic unit.conc_ps_bugs failures

the value of 200 isn't enough for some tests anymore, this causes
some random threads to become not instrumented and any table operations
there are not reflected in the perfschema. If, say, a DROP TABLE
doesn't change perfschema state, perfschema tables might show
ghost tables that no longer exist in the server

32-bit followup for 8bb8820d

main.mdl_sync 'innodb'                   w32 [ fail ]
        Test ended at 2024-04-06 14:11:15

CURRENT_TEST: main.mdl_sync
--- main/mdl_sync.result
+++ main/mdl_sync.reject
@@ -2458,6 +2458,7 @@
 SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
 LOCK_MODE	LOCK_TYPE	TABLE_SCHEMA	TABLE_NAME
 MDL_BACKUP_FTWRL2	Backup lock
+MDL_SHARED	Table metadata lock	test	t2
 unlock tables;
 connection default;
 # Reaping UPDATE

in particular, debug_sync timeout and wait_for_pos timeout

these warnings are expected and are auto-resolved by galera

policy CMP0093 was added in cmake 3.15
let's support cmake from 2.8.12, that's what our
CMAKE_MINIMUM_REQUIRED() says

Its important to fail early and only contine with the include after
the boost version check succeeds.

Needs to succeed on ealier verisons too so can't just fail if too new.
As such, do a version check.

improve debuggability

as it was thinking it was enabled even if initialize_performance_schema
wasn't called at all

This commit fixes the following issues:
- memory leak checking enabled for mysqltest. This cover all cases except
  calls to 'die()' that only happens in case of internal failures in
  mysqltest. die() is not called anymore in the result files differs.
- One can now run mtr --embedded without failures (this crashed or hang
  before)
- cleanup_and_exit() has a new parameter that indicates that it is called
  from die(), in which case we should not do memory leak checks. We now
  always call cleanup_and_exit() instead of exit() to be able to free up
  memory and discover memory leaks.
- Lots of new assert to catch error conditions
- More DBUG statements.
- Fixed that all results are freed in mysqltest (Fixed a memory leak in
  mysqltest when using prepared statements).
- Fixed race condition in do_stmt_close() that caused embedded server
  to not free memory. (Memory leak in mysqltest with embedded server).
- Fixed two memory leaks in embedded server when using prepared statements.
  These memory leaks caused timeout hangs in mtr when server was compiled
  with safemalloc. This issue was not noticed (except as timeouts) as
  memory report checking was done but output of it was disabled.

not only under valgrind

it seems that the test can get IO thread running or not,
there's a comment about it. Thus stop_slave_io.inc is told
to ignore errors.

Make stop_slave_io.inc also disable warnings in this case,
in particular "1255 Slave already has been stopped"

failed on amd64-centos-stream8

on a busy system it might take time for buffer_page_written_index_leaf
to reach the correct value. Wait for it.

also, tag identical statements to be different in the result file.

add 10.5-specific global suppression.
the extra warning is gone in 10.6

Fix in this commit handles foreign key value appending into write set
so that db and table names are converted from the filepath format
to tablename format. This is compatible with key values appended from
elsewhere in the code base

There is a mtr test galera.galera_table_with_hyphen for regression testing

Reviewer: monty@mariadb.com

"Operator does not exists" should rather read "Operator does not exist".

Item_func_dyncol_create::print_arguments() printed only CHARSET clause
without COLLATE.

Therefore,

HEX(column_create(1,'1212' AS CHAR CHARACTER SET utf8mb3 COLLATE utf8mb3_bin))

inside a VIEW changed to just:

HEX(column_create(1,'1212' AS CHAR CHARACTER SET utf8mb3))

which changed the collation ID seen in the HEX output.

Note, the collation ID inside column_create() is not really much important.
(It's only important what the character set is).
And for COLLATE, the more important thing is what's later written
in the AS clause of COLUMN_GET:

SELECT
   COLUMN_GET(
    column_create(1,'1212' AS CHAR CHARACTER SET utf8mb3 COLLATE utf8mb3_bin)
    column_nr AS type  -- this type is more important
   );

Still, let's add the COLLATE clause into the COLUMN_CREATE() print output,
although it's not important for now for anything else than just the HEX output.
At least to make VIEW work in a more predictable way with HEX(COLUMN_CREATE()).

Also, in the future we can start using somehow the collation ID written inside
COLUMN_CREATE(), for example by making the `AS type` clause optional in
COLUMN_GET():
  COLUMN_GET(dyncol_blob, column_nr [AS type]);
instead of:
  COLUMN_GET(dyncol_blob, column_nr AS type);

SQL Server compatibility layer may need this for
the SQL_Variant data type support.

MDEV-33768: Memory leak found in the test main.constraints run with --ps-protocol against a server built with the option -DWITH_PROTECT_STATEMENT_MEMROOT

The discovered memory leak was introduced by the commit
  762bf7a0
    (MDEV-22602 Disable UPDATE CASCADE for SQL constraints)

The reason why a memory leaked on running the test main.constraints
is that a statement arena was used for allocation a memory
for storing a constraint name. A constraint name is an entity having
temporary nature by its design so runtime arena should be used for its
allocation.

MDEV-33767: Memory leaks found in some tests run with --ps-protocol against a server built with the option -DWITH_PROTECT_STATEMENT_MEMROOT

Found memory leaks were introduced by the commit
  a896bebf
  MDEV-18844 Implement EXCEPT ALL and INTERSECT ALL operations
and caused by using a statement arena instead a runtime arena for
allocation of objects having temporary life span by their nature.
Aforementioned memory leaks were produced by running queries
that typically use select with intersect, union or table values
constructors.

To fix these memory leaks use the runtime arena for allocation
of Item_field objects used by set operations.

Additionally, OOM handling added on allocation of aforementioned
Item_field objects.

Test case doesn't work on embedded builds.

$MYSQL_TZINFO_TO_SQL works by truncating tables. Truncation is an
operation that cannot be done in-place and therefore is fundamentally
incompatible with alter_algorithm='INPLACE'. As a result, we override
the default alter_algorithm setting in tztime.cc to
alter_algorithm='COPY' so that timezones can be loaded regardless
of the previously set alter_algorithm.

All new code of the whole pull request, including one or several files
that are either new files or modified ones, are contributed under the
BSD-new license. I am contributing on behalf of my employer
Amazon Web Services, Inc.

wait for all previous connections to disconnect and for all previous
queries to finish running

This reverts commit 8b3f470c.

because it doesn't work, the test still fails, and even more than before

as a side effect --replace and --error now work for shutdown command

plugin var check function must store the new variable value in *save

when the execution is very slow, under valgrind,
the event might manage to fire more than once, making the
test to fail

need at least 2.4 because we use
per-type %destructor that was added after 2.3 in 2.3a

perfschema aggregation, like SHOW STATUS, is only statistically correct.
It doesn't use atomics for performance reasons and might miss individual
increments, particularly when two connections are disconnecting at the
same time.

To have stable results tests should avoid doing it.

disable approximate math in icx.
and disable ansi aliasing too (aria loghandler unit tests fail)

apply the fix from MXS-4686