In commit 412533b4 (MDEV-18582),
one of the counters that was ported from XtraDB is useless.
Innodb_buffered_aio_submitted would be 0 or 1, depending on whether
is_linux_native_aio_supported() was executed to the point where
it would be incremented.

Let us remove this counter, because it has no practical value.
Even if its value were 1, io_setup() can still fail and we may
end up with innodb_use_native_aio=0.

In this platform, it s better not to rely on optional proc filesystem presence.
 Using native API to retrieve binary absolute path instead.

This partially reverts 66106130

AIX detects tell in the configure however
it really isn't there. Use the my_seek aka lseek
implementation.

If a query with implicit grouping contains in MIN/MAX set function in the
select list over a column that is a part of an index then the query
might be subject to MIN/MAX optimization. With this optimization the
server performs a look-up into an index, fetches a value of the column C
used in the MIN/MAX function and substitute the MIN/MAX expression for this
value. This allows to eliminate the table containing C from further join
processing. In order the optimization to be applied the WHERE condition
must be a conjunction of simple equality/inequality predicates or/and
BETWEEN predicates.
The bug fixed in the patch resulted in fetching a wrong value from the
index used for MIN/MAX optimization. It may happened when a BETWEEN
predicate containing the MIN/MAX value followed a strict inequality.

Approved by dmitry.shulga@mariadb.com

Tests with 4096-byte sector size confirm that it is
safe to use O_DIRECT with page_compressed tables.
That had been disabled on Linux, in an attempt to fix MDEV-21584
which had been filed for the O_DIRECT problems earlier.

The fil_node_t::block_size was being set mostly correctly until
commit 10dd290b (MDEV-17380)
introduced a regression in MariaDB Server 10.4.4.

fil_node_open_file(): Only avoid setting O_DIRECT on
ROW_FORMAT=COMPRESSED tables that use KEY_BLOCK_SIZE=1 or 2
(1024 or 2048 bytes).

fil_ibd_create(): Avoid setting O_DIRECT on ROW_FORMAT=COMPRESSED tables
that use KEY_BLOCK_SIZE=1 or 2 (1024 or 2048 bytes).

fil_node_t::find_metadata(): Require fstat() to be always invoked
outside Microsoft Windows, so that fil_node_t::block_size can be set.

fil_node_t::read_page0(): Rely on find_metadata() to assign block_size.

Thanks to Vladislav Vaintroub for testing this on Microsoft Windows
using an old-fashioned rotational hard disk with 4KiB sector size.

Reviewed by: Vladislav Vaintroub

This is a port of commit 00f620b2
and commit 6505662c from 10.2.

Before MDEV-14638, there was no race condition between the
execution of fetch_data_into_cache() and transaction commit.

fetch_data_into_cache(): Acquire trx_t::mutex before checking
trx_t::state, to prevent a concurrent transition from
TRX_STATE_COMMITTED_IN_MEMORY to TRX_STATE_NOT_STARTED
in trx_commit_in_memory().

ha_innobase::info_low(): While collecting statistics for
ANALYZE TABLE, ensure that dict_stats_process_entry_from_recalc_pool()
is not executing on the same table.

We observed result differences for the test innodb.innodb_stats because
dict_stats_empty_index() was being invoked by the background statistics
calculation while ha_innobase::analyze() was executing
dict_stats_analyze_index_level().

Tests with 4096-byte sector size confirm that it is
safe to use O_DIRECT with page_compressed tables.
That had been disabled on Linux, in an attempt to fix MDEV-21584
which had been filed for the O_DIRECT problems earlier.

The fil_node_t::block_size was being set mostly correctly until
commit 10dd290b (MDEV-17380)
introduced a regression in MariaDB Server 10.4.4.

fil_node_t::read_page0(): Initialize fil_node_t::block_size.
This will probably make similar code in fil_space_extend_must_retry()
redundant, but we play it safe and will not remove that code.

Thanks to Vladislav Vaintroub for testing this on Microsoft Windows
using an old-fashioned rotational hard disk with 4KiB sector size.

Reviewed by: Vladislav Vaintroub

This patch implements OS_DATA_FILE_NO_O_DIRECT on Windows.

This had been originally added in
mysql/mysql-server@192bb153b675fe09037a53e456a79eee7211e3a7
with the motivation to disable O_DIRECT for the dedicated tablespace
for temporary tables. In MariaDB Server,
commit 5eb53955 (MDEV-12227)
should be a better solution.

The code became orphaned later in
mysql/mysql-server@c61244c0e6c58727cffebfb312ac415a463fa0fe
and it had been applied to MariaDB Server 10.2.2 in
commit 2e814d47 and
commit fec844ac.

Thanks to Vladislav Vaintroub for spotting this.

MDEV-24916 : Assertion `current_stmt_binlog_format == BINLOG_FORMAT_STMT || current_stmt_binlog_format == BINLOG_FORMAT_ROW' failed in THD::is_current_stmt_binlog_format_row

Store old value of binlog format before wsrep code so that
if we bail out because wsrep is not ready for connections
we can restore binlog format correctly.

MDEV-18874 : Galera test MW-286 causes Mutex = TTASEventMutex<GenericPolicy>]: Assertion `!is_owned()' failed. assertion

MDEV-24649 galera.galera_bf_lock_wait MTR failed with sigabrt: Assertion `!is_ow
ned()' failed in sync0policy.ic on MutexDebug with Mutex = TTASEventMutex<GenericPolicy>

Bug was fixed as part of MDEV-23328, this just adds test cases to
regression set.

ALIGN was defined already:

mysys/crc32/crc32c.cc:390: warning: "ALIGN" redefined
 #define ALIGN(n, m)     ((n + ((1 << m) - 1)) & ~((1 << m) - 1))

In file included from /root/aix/build/include/my_global.h:543,
                 from /root/aix/build/mysys/crc32/crc32c.cc:22:
/opt/freeware/lib/gcc/powerpc-ibm-aix7.1.0.0/8/include-fixed/sys/socket.h:788: note: this is the location of the previous definition
 #define ALIGN(p)                (ulong)((caddr_t)(p) + MACHINE_ALIGNMENT - 1 - \

As evidenced by converstation on Zulip,
knowing where to install a plugin is important too.

Note they key_or() may call tree_delete(), which will cause the weight
asserts to be checked. In order to avoid them from firing, update key1
tree's weight after we've changed key1->some_local_child->next_key_part.

Having done that, do we still need this at the function end:

  /* Re-compute the result tree's weight. */
  key1->update_weight_locally();
?

Upstreamed from https://salsa.debian.org/mariadb-team/mariadb-10.5/-/tree/master/debian/po

031b3dfc changed thread_stack for ASAN.
Skip the tests to avoid the diff

Add missing dbug sync point and correct the test case.

MDEV-24601: INFORMATION_SCHEMA doesn't differentiate between column and table-level CHECK constraints

- Reviewed by: wlad@mariadb.com

MDEV-24916 : Assertion `current_stmt_binlog_format == BINLOG_FORMAT_STMT || current_stmt_binlog_format == BINLOG_FORMAT_ROW' failed in THD::is_current_stmt_binlog_format_row

Store old value of binlog format before wsrep code so that
if we bail out because wsrep is not ready for connections
we can restore binlog format correctly.

Adding any unknown option to the "[mysqld_safe]" section makes
mysqld impossible to start with mysqld_multi. For example, after
adding the unknown option "numa_interleave" to the "[mysqld_safe]"
section, mysqld_multi exits with the following diagnostics:

[ERROR] /usr/local/mysql/bin/mysqld: unknown option '--numa_interleave'

To get rid of this behavior, this patch adds the passing of the default
group suffix from mysqld_multi to the mysqld_safe side.

Change the default timestamping URL, again
http://timestamp.globalsign.com/?signature=sha2 seems to work fine atm

connection.

Ignore harmless X509_R_CERT_ALREADY_IN_HASH_TABLE, similar to how Curl or
other projects treat it.