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Type_handler_row::subquery_type_allows_materialization
For ROW data type, materialization is not possible, so IN predicate to IN subquery conversion
should not be allowed in this case.
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61 is too large for 32-bit type 'int' (on optimized builds)
Use a ulonglong instead of uint when left shifting to calculate the table map for all the tables in a query
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This reverts commit bc2dc83cb56851144a8c15e73a83c7817dc705a2.
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feedback plugin now fakes a SHOW command to force
create_schema_table() to instantiate the table at once,
not lazily.
The test from plugins.feedback_plugin_send applies.
Caused by e64084d5a3a7
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Assertion `thd->mdl_context.is_lock_owner(MDL_key::TABLE, table->db.str, table->table_name.str, MDL_SHARED)' failed in mysql_rm_table_no_locks
Early report error in case of DROP SEQUENCE <non-sequence>
Do not use error variable for other purposes except error.
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Closes PR #1649
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encountered
Post-push Windows compilation errors fix.
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Change thd->mdl_context.release_transactional_locks() to
thd->mdl_release_transactional_locks()
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row_undo_ins_parse_undo_rec(): Do not try to read non-existing
virtual column information for the metadata record.
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encountered
The new option --log-innodb-page-corruption is introduced.
When this option is set, backup is not interrupted if innodb corrupted
page is detected. Instead it logs all found corrupted pages in
innodb_corrupted_pages file in backup directory and finishes with error.
For incremental backup corrupted pages are also copied to .delta file,
because we can't do LSN check for such pages during backup,
innodb_corrupted_pages will also be created in incremental backup
directory.
During --prepare, corrupted pages list is read from the file just after
redo log is applied, and each page from the list is checked if it is allocated
in it's tablespace or not. If it is not allocated, then it is zeroed out,
flushed to the tablespace and removed from the list. If all pages are removed
from the list, then --prepare is finished successfully and
innodb_corrupted_pages file is removed from backup directory. Otherwise
--prepare is finished with error message and innodb_corrupted_pages contains
the list of the pages, which are detected as corrupted during backup, and are
allocated in their tablespaces, what means backup directory contains corrupted
innodb pages, and backup can not be considered as consistent.
For incremental --prepare corrupted pages from .delta files are applied
to the base backup, innodb_corrupted_pages is read from both base in
incremental directories, and the same action is proceded for corrupted
pages list as for full --prepare. innodb_corrupted_pages file is
modified or removed only in base directory.
If DDL happens during backup, it is also processed at the end of backup
to have correct tablespace names in innodb_corrupted_pages.
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The reason for the failure is that
thd->mdl_context.release_transactional_locks()
was called after commit & rollback even in cases where the current
transaction is still active.
For 10.2, 10.3 and 10.4 the fix is simple:
- Replace all calls to thd->mdl_context.release_transactional_locks() with
thd->release_transactional_locks(). The thd function will only call
the mdl_context function if there are no active transactional locks.
In 10.6 we will better fix where we will change the return value for
some trans_xxx() functions to indicate if transaction did close the
transaction or not. This will avoid the need of the indirect call.
Other things:
- trans_xa_commit() and trans_xa_rollback() will automatically
call release_transactional_locks() if the transaction is closed.
- We can't do that for the other functions as the caller of many of these
are doing additional work (like close_thread_tables) before calling
release_transactional_locks().
- Added missing abort_result_set() and missing DBUG_RETURN in
select_create::send_eof()
- Fixed wrong indentation in injector::transaction::commit()
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Reviewed by:serg@mariadb.com
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This is a fixup patch for MDEV-23991 afc9d00c66db946c8240fe1fa6b345a3a8b6fec1
We really should read result.n_leaf_pages, which was set previously.
Analysis and fix was provided by Jukka Santala. Thanks!
Reviewed by: Marko Mäkelä
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The nonnull attribute is not applicable to parameters that are
passed by reference, at least not in the Intel compiler.
Let us remove the reference indirection, which was only there
so that the pointer could be assigned to NULL, and let the
callers perform that task.
row_log_allocate(): Fix a bug in out-of-memory error handling
that would leave a pointer to freed memory.
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In galera_3nodes.galera_safe_to_bootstrap node restart can happen too soon, when earlier SST joiner process is still active in the node.
Similar issue may hurt other mtr tests as well.
This is second variant of fix for this issue. Here we only change rsync SST script to wait a little bit if lingering SST rsync is observed to be in execution.
We assume that the previous mysqld and SST processes have been already signaled to abort during earlier stataup attempt.
If other SST methods (than rsync) suffer from similar overlapping SST execution, they should be sorted out separately within each SST method handler scripts.
Reviewed-by: Jan Lindström <jan.lindstrom@mariadb.com>
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Add test case
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A bogus error message was issued when a condition was pushed into a
materialized derived table or view specified as union of selects with
aggregation when the corresponding columns of the selects had different
names. This happened because the expression pushed into having clauses of
the selects was adjusted for the names of the first select of the union.
The easiest solution was to rename the columns of the other selects to be
name compatible with the columns of the first select.
Approved by Oleksandr Byelkin <sanja@mariadb.com>
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sequence.
Explicitly setting encoding to UTF-8 when writing to file and
replacing wide characters from MTR_RES_FAILED when writing to
XML file. The wide characters are not allowed in XML.
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FindBlockX::operator(): Return false if an x-latched block is found.
Previously, we were incorrectly returning false if the block was in
the log, only if not x-latched.
It is unknown if this mistake had any visible impact. Often,
we would register both MTR_MEMO_BUF_FIX and MTR_MEMO_PAGE_X_FIX
for the same block.
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in TABLE_LIST::is_recursive_with_tables
After the patch for MDEV-23619 the code of st_select_lex::cleanup started
using the list st_select_lex::leaf_tables. This list is built for any
query with FROM clause in the function setup_tables(). If such query is
used in a stored procedure it must be ensured that the list is empty
before each new call of the procedure. Otherwise if the first call of
the procedure is successful while the second call reports an error before
the setup_tables() is invoked then list st_select_lex::leaf_tables would
point to a piece of memory that has been already freed.
Approved by Oleksandr Byelkin <sanja@mariadb.com>
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Add wait_condition.
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Add primary key and wait condition.
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Add wait_conditions.
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Reviewer: Brad Smith
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broader set of datatype comparison
Allow materialization strategy when collations on the
inner and outer sides of an IN subquery are the same and the
character set of the inner side is a proper subset of the character
set on the outer side.
This allows conversion from utf8mb3 to utf8mb4
as the former is a subset of the later.
This is only allowed when IN predicate is converted to an IN subquery
Backported part of the patch (d6a00d9b18f) of MDEV-17905.
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disable thd->count_cuted_fields when populating internal temporary
tables for I_S, because this is how SELECT works standalone.
And if the SELECT is a part of INSERT or UPDATE or RETURN or SET or
anything else that enables thd->count_cuted_fields, this counting should
only apply when storing the result of the SELECT in a field or a
variable, not when populating internal temporary tables for I_S.
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Prior to this patch, it is possible to access freed memory
(THD::event_scheduler) from tp_post_kill_notification().
With this patch, memory is freed only when THD is no more accessible
from other threads, i.e after it is removed from the thread_list.
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partitioned table.
The idea of this fix is that it's enough to prevent the
next_auto_inc_val from incrementing if an error, to fix this problem
and also the MDEV-17333.
So this patch basically reverts the existing fix to the MDEV-17333.
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The fix of MDEV-23456 (commit b1009ae5c16697d5eef443cc6a60a74301148c73)
introduced a livelock between page flushing and a thread that is
executing buf_page_create().
buf_page_create(): If the current mini-transaction is holding
an exclusive latch on the page, do not attempt to acquire another
one, and do not care about any I/O fix.
mtr_t::have_x_latch(): Replaces mtr_t::get_fix_count().
dyn_buf_t::for_each_block(const Functor&) const: A new variant.
rw_lock_own(): Add a const qualifier.
Reviewed by: Thirunarayanan Balathandayuthapani
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Due to a premature cleanup of the unit that specified a recursive CTE
used in the second operand of union the server fell into an infinite
loop in the reported test case. In other cases this premature cleanup
could cause other problems.
The bug is the result of a not quite correct fix for MDEV-17024. The
unit that specifies a recursive CTE has to be cleaned only after the
cleanup of the last external reference to this CTE. It means that
cleanups of the unit triggered not by the cleanup of a external
reference to the CTE must be blocked.
Usage of local table chains in selects to get external references to
recursive CTEs was not correct either because of possible merges of
some selects.
Also fixed a minor bug in st_select_lex::set_explain_type() that caused
typing 'RECURSIVE UNION' instead of 'UNION' in EXPLAIN output for external
references to a recursive CTE.
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Analysis:
========
Writes to 'rli->log_space_total' needs to be synchronized, otherwise both
SQL_THREAD and IO_THREAD can try to modify the variable simultaneously
resulting in incorrect rli->log_space_total. In the current test scenario
SQL_THREAD is trying to decrement 'rli->log_space_total' in 'purge_first_log'
and IO_THREAD is trying to increment the 'rli->log_space_total' in
'queue_event' simultaneously. Hence test occasionally fails with result
mismatch.
Fix:
===
Convert 'rli->log_space_total' variable to atomic type.
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As noted in commit 0b66d3f70d365bbb936aae4ca67892c17d68d241,
MariaDB does not support CREATE TABLESPACE for InnoDB.
Hence, some code that was added in
commit fec844aca88e1c6b9c36bb0b811e92d9d023ffb9
and originally in
mysql/mysql-server@c71dd213bd434c0579e454ab8880e6d3756b0fb0
is unused in MariaDB and should be removed.
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trx_undo_left(): Return 0 in case of an overflow, instead of
returning a negative number interpreted as a large positive number.
Also, add debug assertions to check that the pointer is within
the page area. This should allow us to catch bugs like
MDEV-24096 easier in the future.
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