Original revision:
------------------------------------------------------------
revno: 3817
revision-id: guilhem@mysql.com-20100108092756-k0zzf4kvx9b7bh38
parent: guilhem@mysql.com-20100107101133-hrrgcdqg508runuf
committer: Guilhem Bichot <guilhem@mysql.com>
branch nick: mysql-6.0-codebase-bugfixing
timestamp: Fri 2010-01-08 10:27:56 +0100
message:
fix for BUG#50120 "Valgrind errors in any test, inside mysqltest"
Problem was that as v->name[v->name_len] may be uninitialized (which is ok per se),
it shouldn't be used in an if(). We remove this zero_the_char/restore_it logic by
rather zero-terminating the v->name string when we create it in var_init().
------------------------------------------------------------
The test case did not start with fresh binlogs, so in some
cases, dependending on the order MTR runs the tests, it would
try to show binlog contents from invalid positions (binary log
would contain unexpected events from previous test).
We fix this by deploying a RESET MASTER at the beginning of the
test case.
Conflicts:
Text conflict in .bzr-mysql/default.conf
Text conflict in mysql-test/extra/rpl_tests/rpl_loaddata.test
Text conflict in mysql-test/r/mysqlbinlog2.result
Text conflict in mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result
Text conflict in mysql-test/suite/binlog/r/binlog_unsafe.result
Text conflict in mysql-test/suite/rpl/r/rpl_insert_id.result
Text conflict in mysql-test/suite/rpl/r/rpl_loaddata.result
Text conflict in mysql-test/suite/rpl/r/rpl_stm_auto_increment_bug33029.result
Text conflict in mysql-test/suite/rpl/r/rpl_udf.result
Text conflict in mysql-test/suite/rpl/t/rpl_slow_query_log.test
Text conflict in sql/field.h
Text conflict in sql/log.cc
Text conflict in sql/log_event.cc
Text conflict in sql/log_event_old.cc
Text conflict in sql/mysql_priv.h
Text conflict in sql/share/errmsg.txt
Text conflict in sql/sp.cc
Text conflict in sql/sql_acl.cc
Text conflict in sql/sql_base.cc
Text conflict in sql/sql_class.h
Text conflict in sql/sql_db.cc
Text conflict in sql/sql_delete.cc
Text conflict in sql/sql_insert.cc
Text conflict in sql/sql_lex.cc
Text conflict in sql/sql_lex.h
Text conflict in sql/sql_load.cc
Text conflict in sql/sql_table.cc
Text conflict in sql/sql_update.cc
Text conflict in sql/sql_view.cc
Conflict adding files to storage/innobase. Created directory.
Conflict because storage/innobase is not versioned, but has versioned children. Versioned directory.
Conflict adding file storage/innobase. Moved existing file to storage/innobase.moved.
Conflict adding files to storage/innobase/handler. Created directory.
Conflict because storage/innobase/handler is not versioned, but has versioned children. Versioned directory.
Contents conflict in storage/innobase/handler/ha_innodb.cc
WL#5151 was pushed.
Problem 1: Some old binlog events do not contain metadata. This
makes checking whether the field can be converted or not rather
impossible because one cannot compare, for instance, field sizes
from original table and target table.
Solution 1: When an event does not contain metadata, we will just
check if field types are equal and assume that original field
definition matched with the one in the target table.
Problem 2: There is a second fix, which involves lack of
information regarding maybe_null. This was causing a conditional
jump warning when creating a conversion table.
Solution 2: We will just assume that all fields that need to be
in the conversion table may be null.
mysql-test/r/index_merge_myisam.result:
@@optimizer_switch has a new flag
mysql-test/r/mysqld--help-notwin.result:
@@optimizer_switch has a new flag
mysql-test/r/mysqld--help-win.result:
@@optimizer_switch has a new flag
mysql-test/r/optimizer_switch_eng_cond_pushdown1.result:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/r/optimizer_switch_eng_cond_pushdown2.result:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/suite/ndb/r/ndb_condition_pushdown.result:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/r/ndb_gis.result:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/r/ndb_index_unique.result:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/t/ndb_condition_pushdown.test:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/t/ndb_gis.test:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/t/ndb_index_unique.test:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/sys_vars/r/engine_condition_pushdown_basic.result:
Setting @@engine_condition_pushdown gives a deprecation warning now.
We test that the engine_condition_pushdown flag of @@optimizer_switch, and @@engine_condition_pushdown
influence each other (turning the flag on/off sets the variable on/off and vice-versa).
mysql-test/suite/sys_vars/r/optimizer_switch_basic.result:
@@optimizer_switch has a new flag
mysql-test/suite/sys_vars/t/engine_condition_pushdown_basic.test:
Setting @@engine_condition_pushdown gives a deprecation warning now.
We test that the engine_condition_pushdown flag of @@optimizer_switch, and @@engine_condition_pushdown
influence each other (turning the flag on/off sets the variable on/off and vice-versa).
mysql-test/t/optimizer_switch_eng_cond_pushdown1-master.opt:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/t/optimizer_switch_eng_cond_pushdown1.test:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/t/optimizer_switch_eng_cond_pushdown2-master.opt:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/t/optimizer_switch_eng_cond_pushdown2.test:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
sql/mysql_priv.h:
new "engine_condition_pushdown" switch in @@optimizer_switch, on by default, like
@@engine_condition_pushdown is on by default. Constants are ULL because optimizer_switch
is stored in a ulonglong.
sql/mysqld.cc:
Making --engine-condition-pushdown and --optimizer-switch (command-line options)
influence each other (last wins)
sql/records.cc:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
sql/sql_select.cc:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
sql/sys_vars.cc:
Setting @@engine_condition_pushdown now issues a deprecation message. The version for removal
is unknown at this point so I copied it from other deprecation warnings in this file.
Turning on/off the engine_condition_pushdown flag of @@optimizer_switch (with SET) turns on/off the @@engine_condition_pushdown variable, and vice-versa, thanks to fix_* functions.
Subtraction of two unsigned months yielded a (very large) positive value.
Conversion of this to a signed value was not necessarily well defined.
Solution: do the subtraction on signed values.
mysql-test/r/events_scheduling.result:
Add test case.
mysql-test/t/events_scheduling.test:
Add test case.
sql/event_data_objects.cc:
Convert month to signed before doing the subtraction.
"set engine_condition_pushdown" is deprecated, engine condition pushdown is controlled
by a new "set optimizer_switch=engine_condition_pushdown=on|off".
mysql-test/r/index_merge_myisam.result:
@@optimizer_switch has a new flag
mysql-test/r/mysqld--help-notwin.result:
@@optimizer_switch has a new flag
mysql-test/r/mysqld--help-win.result:
@@optimizer_switch has a new flag
mysql-test/r/optimizer_switch_eng_cond_pushdown1.result:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/r/optimizer_switch_eng_cond_pushdown2.result:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/suite/ndb/r/ndb_condition_pushdown.result:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/r/ndb_gis.result:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/r/ndb_index_unique.result:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/t/ndb_condition_pushdown.test:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/t/ndb_gis.test:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/ndb/t/ndb_index_unique.test:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
mysql-test/suite/sys_vars/r/engine_condition_pushdown_basic.result:
Setting @@engine_condition_pushdown gives a deprecation warning now.
We test that the engine_condition_pushdown flag of @@optimizer_switch, and @@engine_condition_pushdown
influence each other (turning the flag on/off sets the variable on/off and vice-versa).
mysql-test/suite/sys_vars/r/optimizer_switch_basic.result:
@@optimizer_switch has a new flag
mysql-test/suite/sys_vars/t/engine_condition_pushdown_basic.test:
Setting @@engine_condition_pushdown gives a deprecation warning now.
We test that the engine_condition_pushdown flag of @@optimizer_switch, and @@engine_condition_pushdown
influence each other (turning the flag on/off sets the variable on/off and vice-versa).
mysql-test/t/optimizer_switch_eng_cond_pushdown1-master.opt:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/t/optimizer_switch_eng_cond_pushdown1.test:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/t/optimizer_switch_eng_cond_pushdown2-master.opt:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
mysql-test/t/optimizer_switch_eng_cond_pushdown2.test:
Check how --engine-condition-pushdown and --optimizer-switch influence each other when used together (last wins).
sql/mysql_priv.h:
new "engine_condition_pushdown" switch in @@optimizer_switch, on by default, like
@@engine_condition_pushdown is on by default. Constants are ULL because optimizer_switch
is stored in a ulonglong.
sql/mysqld.cc:
Making --engine-condition-pushdown and --optimizer-switch (command-line options)
influence each other (last wins)
sql/records.cc:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
sql/sql_select.cc:
@@engine_condition_pushdown is deprecated, use @@optimizer_switch instead
sql/sys_vars.cc:
Setting @@engine_condition_pushdown now issues a deprecation message. The version for removal
is unknown at this point so I copied it from other deprecation warnings in this file.
Turning on/off the engine_condition_pushdown flag of @@optimizer_switch (with SET) turns on/off the @@engine_condition_pushdown variable, and vice-versa, thanks to fix_* functions.
In auto-commit mode, updating both trx and non-trx tables (i.e. issuing a mixed
statement) causes the following sequence of events:
1 - "Flush trx changes" (MYSQL_BIN_LOG::write) - T1:
1.1 - mutex_lock (&LOCK_log)
1.2 - mutex_lock (&LOCK_prep_xids)
1.3 - increase prepared_xids
1.4 - mutex_unlock (&LOCK_prep_xids)
1.5 - mutex_unlock (&LOCK_log)
2 - "Flush non-trx changes" (MYSQL_BIN_LOG::write) - T1:
2.1 - mutex_lock (&LOCK_log)
2.2 - mutex_unlock (&LOCK_log)
3. "unlog" - T1
3.1 - mutex_lock (&LOCK_prep_xids)
3.2 - decrease prepared xids
3.3 - pthread_cond_signal(&COND_prep_xids);
3.4 - mutex_unlock (&LOCK_prep_xids)
The "FLUSH logs" command produces the following sequence of events:
1 - "FLUSH logs" command (MYSQL_BIN_LOG::new_file_impl) - user thread:
1.1 - mutex_lock (&LOCK_log)
1.2 - mutex_lock (&LOCK_prep_xids)
1.3 - while (prepared_xids) pthread_cond_wait(..., &LOCK_prep_xids);
1.4 - mutex_unlock (&LOCK_prep_xids)
1.5 - mutex_unlock (&LOCK_log)
A deadlock will arise if T1 flushes the trx changes and thus increases
prepared_xids but before it is able to continue the execution and flush the
non-trx changes, an user thread calls the "FLUSH logs" command and wait that
the prepared_xids is decreased and gets to zero. However, T1 cannot proceed
with the call to "Flush non-trx changes" because it will block in the mutex
"LOCK_log" and by consequence cannot complete the execution and call the
unlog to decrease the prepared_xids.
To fix the problem, we ensure that the non-trx changes are always flushed
before the trx changes.
Note that if you call "Flush non-trx changes" and a concurrent "FLUSH logs" is
issued, the "Flush non-trx changes" may block, but a deadlock will never happen
because the prepared_xids will eventually get to zero. Bottom line, there will
not be any transaction able to increase the prepared_xids because they will
block in the mutex "LOCK_log" (MYSQL_BIN_LOG::write) and those that increased
the prepared_xids will eventually commit and decrease the prepared_xids.
subquery in the select list
When a dependent subquery with count(distinct <col>) was
evaluated multiple times, the Distinct_Aggregator was reused.
However, the Aggregator was not reset, so when the subquery was
evaluated for the next record in the outer select, old dependent
info was used.
The fix is to clear() the existing aggregator in
Item_sum::set_aggregator(). This ensures that the aggregator is
reevaluated with the new dependent information.
mysql-test/r/subselect3.result:
Added test case for BUG#48920
mysql-test/t/subselect3.test:
Added test case for BUG#48920
sql/item_sum.cc:
If an aggregator exists when Item_sum::set_aggregator() is
called (i.e., set_aggregator is called in a dependent
subquery), the aggregator is reset so that the aggregator is
reevaluated with the dependent information from the outer
record being evaluated.
- backported code that handles %f/%g arguments in
my_vsnprintf.c from 6.0
- backported %f/%g tests in unittest/mysys/my_vsnprintf-t.c
from 6.0
- replaced snprintf("%g") in sql/set_var.cc with my_gcvt()
- removed unnecessary "--replace-result"s for Windows in
mysql-test/suite/sys_vars/t/long_query_time_basic.test
- some test results adjustments
The 'rpl_cross_version' fails on mysql-next-mr-bugfixing as following:
mysqltest: In included file "./include/setup_fake_relay_log.inc": At line 80: query
'select './$_fake_filename-fake.000001\n' into dumpfile '$_fake_relay_index'' failed:
1290: The MySQL server is running with the --secure-file-priv option so it cannot execute
this statement.
To fix the problem by removeing the --secure-file-priv option
for adapting the update of the 'setup_fake_relay_log.inc'.
Unlike other platforms --mfpmath=sse is the default
gcc mode on Mac OS X Intel. So it is unnecessary
to switch FPU to double precision mode (in fact,
it even breaks some math library functions).
