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- Change the default flag value to ON.
- Update the testcases to be run extended_keys=ON:
= trivial test result updates
= If extended_keys setting makes a difference for a testcase, run the testcase
with extended_keys=off. There were only a few such cases
- Update to vcol_select_innodb looks like a worse plan but it will be gone in 10.0.
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revision-id: psergey@askmonty.org-20140204092710-2yt5ysa5ej3l2c03
MDEV-5606: range optimizer: "x < y" is sargable, while "y > x" is not
Port to mariadb-1.0 the following fix from mysql-5.6:
Revision ID: jorgen.loland@oracle.com-20120314131055-ml54x9deueqfsff4
BUG#13701206: WHERE A>=B DOES NOT GIVE SAME EXECUTION PLAN
AS WHERE B<=A (RANGE OPTIMIZER)
that fix didn't have a public testcase, so I created one.
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The function calculate_cond_selectivity_for_table() must consider
the case when the key range tree returned by the call of get_mm_tree()
is of the type SEL_TREE::ALWAYS.
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As a side-effect of purge_relay_logs(), sql_slave_skip_counter
was silently ignored in GTID mode.
But sql_slave_skip_counter in fact is not a good match with GTID.
And it is not really needed either, as users can explicitly set
@@gtid_slave_pos to skip specific GTIDs, in a way that matches
well how GTID replication works.
So with this patch, we give an error on attempts to set
sql_slave_skip_counter when using GTID, with a suggestion to use
gtid_slave_pos instead, if needed.
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tests.
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MDEV-4984: Implement MASTER_GTID_WAIT() and @@LAST_GTID.
MDEV-4726: Race in mysql-test/suite/rpl/t/rpl_gtid_stop_start.test
MDEV-5636: Deadlock in RESET MASTER
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Fix a race in test case rpl_gtid_basic.
include/sync_with_master_gtid.inc got confused due to two different
GTIDs both with the same seq_no=9.
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The problem is a deadlock between MYSQL_BIN_LOG::reset_logs() and
MYSQL_BIN_LOG::mark_xid_done(). The former takes LOCK_log and waits for the
latter to complete. But the latter also tries to take LOCK_log; this can lead
to a deadlock.
There was already code that tries to deal with this, with the flag
reset_master_pending. However, there was still a small opportunity for
deadlock, when an previous mark_xid_done() is still running when reset_logs()
is called and is at the precise point where it first releases LOCK_xid_list
and then re-aquires both LOCK_log and LOCK_xid_list.
Solve by setting reset_master_pending in reset_logs() before taking
LOCK_log. And also count how many invocations of LOCK_xid_list are in the
progress of releasing and re-aquiring locks, and in reset_logs() wait for that
number to drop to zero after setting reset_master_pending and before taking
LOCK_log.
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Rewrite the gtid_waiting::wait_for_gtid() function.
The code was rubbish (and buggy). Now the logic is
much clearer.
Also fix a missing slave sync that could cause test failure.
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Couple of small fixes following buildbot testing.
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Some GTID test cases were using include/wait_condition.inc with a
condition like SELECT COUNT(*)=4 FROM t1 to wait for the slave to
catch up with the master. This causes races and test failures, as the
changes to the tables become visible at the COMMIT of the SQL thread
(or even before in case of MyISAM), but the changes to
@@gtid_slave_pos only become visible a little bit after the COMMIT.
Now that we have MASTER_GTID_WAIT(), just use that to sync up in a
GTID-friendly way, wrapped in nice include/save_master_gtid.inc and
include/sync_with_master_gtid.inc scripts.
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MASTER_GTID_WAIT() is similar to MASTER_POS_WAIT(), but works with a
GTID position rather than an old-style filename/offset.
@@LAST_GTID gives the GTID assigned to the last transaction written
into the binlog.
Together, the two can be used by applications to obtain the GTID of
an update on the master, and then do a MASTER_GTID_WAIT() for that
position on any read slave where it is important to get results that
are caught up with the master at least to the point of the update.
The implementation of MASTER_GTID_WAIT() is implemented in a way
that tries to minimise the performance impact on the SQL threads,
even in the presense of many waiters on single GTID positions (as
from @@LAST_GTID).
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The problem was a race between the SQL driver thread and the worker threads.
The SQL driver thread would set rli->last_master_timestamp to zero to
mark that it has caught up with the master, while the worker threads would
set it to the timestamp of the executed event. This can happen out-of-order
in parallel replication, causing the "caught up" status to be overwritten
and Seconds_Behind_Master to wrongly grow when the slave is idle.
To fix, introduce a separate flag rli->sql_thread_caught_up to mark that the
SQL driver thread is caught up. This avoids issues with worker threads
overwriting the SQL driver thread status. In parallel replication, we then
make SHOW SLAVE STATUS check in addition that all worker threads are idle
before showing Seconds_Behind_Master as 0 due to slave idle.
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appears to be unset, or when it contains 'root' even though the user
does not have real root permissions
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JOIN, TEMPTABLE view
Set of JOIN_TYPE_OUTER made only once to avoid interference with optimization joins which made only once per query.
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INSTALL PLUGIN
There was mixed lock order between LOCK_plugin, LOCK_global_system_variables
and LOCK_system_variables_hash. This patch ensures that write-lock on
LOCK_system_variables_hash doesn't intersect with LOCK_plugin.
Fixed by moving initialization/deinitialization of plugin options from
plugin_add()/plugin_del() to plugin_initialize()/plugin_deinitalize().
So that plugin options are handled without protection of LOCK_plugin.
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on server shutdown after SELECT with CONVERT_TZ
It's wrong to return my_empty_string from val_str().
Removing my_empty_string. Using make_empty_result() instead.
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package
add patch as a "suggested" dependency to mariadb-test-5.5
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if two threads were calling mi_assign_to_key_cache() for the same table,
one could change share->key_cache while the other was having
share->key_cache->op_lock locked. The other thread would crash then,
trying to unlock share->key_cache->op_lock (because it would be a different mutex).
fixed by caching the value of share->key_cache in a local variable. The thread can still
call flush_key_blocks() for an unassigned keycache, but it's harmless.
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in some VMs readline thinks that the window size is zero. ignore it.
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with functions in select list, GROUP BY, ORDER BY
Old code in create_tmp_table(), that created an extra one-byte field (recinfo)
before every NULL-able grouping field (Field) in the tmp table, did not actually work.
Because the matching code in end_update(), that was supposed to update this byte,
was using a wrong offset, updating the first byte of the Field, not a byte before it.
Normally this wasn't an issue, because the Field value (written later in end_update)
was overwriting this byte anyway. But in this bug the Field was Field_null, with zero
length, so end_update() was overwriting the first byte of the following field.
And the following field was not-nullable constant, which was stored only once in
create_tmp_table and never updated later.
Fixed by removing the code that didn't do any useful work anyway.
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Added variable "OLD_MODE" that can be used to turn off the new behavior
mysql-test/r/insert.result:
Added test case
mysql-test/r/mysqld--help.result:
Added old_mode
mysql-test/suite/sys_vars/r/old_mode_basic.result:
Added testing of new variable
mysql-test/suite/sys_vars/t/old_mode_basic.test:
Added testing of new variable
mysql-test/t/insert.test:
Added test case
sql/sql_class.h:
Added bit flags for OLD_MODE
sql/sql_insert.cc:
Disable duplicate key warnings for INSERT IGNORE of OLD_MODE NO_DUP_KEY_WARNINGS_WITH_IGNORE is used
sql/sql_show.cc:
Don't show progress reporting on SHOW PROCESSLIST if OLD_MODE NO_PROGRESS_INFO is used
sql/sys_vars.cc:
Added OLD_MODE
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sql/item.h:
Added cache for setup_natural_join_row_types
sql/sql_base.cc:
Cache old value of first_name_resolution_table for next call.
(It's not safe to try to recalculate the value as the join structure may have been changed by the optimizer)
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Added test cases
mysql-test/r/mysql_tzinfo_to_sql_symlink.result:
Updated results
mysql-test/std_data/zoneinfo/garbage:
test file
mysql-test/std_data/zoneinfo/ignored.tab:
test file
mysql-test/t/mysql_tzinfo_to_sql_symlink.test:
Added test cases for all options
sql/tztime.cc:
Better error messages.
Fixed wrong place for 'continue'
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Marked very long running tests as big_test
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Problem was that ALTER TABLE DISABLE KEYS incremented create_trid for the table,
which made the new index entries invisible until the global trid catched up.
Fixed by only updating create_trid if we are rewriting all rows and indexes.
mysql-test/suite/maria/alter.result:
Added test case
mysql-test/suite/maria/alter.test:
Added test case
storage/maria/ha_maria.cc:
Only updating create_trid if we are doing a full repair (and thus rewriting all rows and indexes).
storage/maria/trnman.c:
More DBUG_PRINT
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Assertion `mon > 0 && mon < 13' failed.'
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MDEV-5337: Wrong result in mariadb 5.5.32 with ORDER BY + LIMIT when
index_condition_pushdown=on
- in test_if_skip_sort_order(), correct the condition under which
we have the code that restores the previously pushed index condition.
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BY, ROLLUP
The crash happened because Item_func_monthname was derived from
Item_func_month, so Item_func_monthname::is_null() did not work fine.
Backporting a change from 5.5: Item_func_monthname is now derived from
Item_str_func.
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