The fix blocks execution of any constant sub-expressions of
the defining expressions for virtual columns when context
analysis if these expressions is performed.
Fixed a compiler warning.
way of processing prepared statements:
- conversion subquery_predicate -> TABLE_LIST is once per-statement
- However, the code must take into account that materialized temptable
is dropped and re-created on each execution (the tricky part is that
at start of n-th EXECUTE we have TABLE_LIST object but not its TABLE object)
- IN-equality is injected into WHERE on every execution.
A lot of small fixes and new test cases.
client/mysqlbinlog.cc:
Cast removed
client/mysqltest.cc:
Added missing DBUG_RETURN
include/my_pthread.h:
set_timespec_time_nsec() now only takes one argument
mysql-test/t/date_formats.test:
Remove --disable_ps_protocl as now also ps supports microseconds
mysys/my_uuid.c:
Changed to use my_interval_timer() instead of my_getsystime()
mysys/waiting_threads.c:
Changed to use my_hrtime()
sql/field.h:
Added bool special_const_compare() for fields that may convert values before compare (like year)
sql/field_conv.cc:
Added test to get optimal copying of identical temporal values.
sql/item.cc:
Return that item_int is equal if it's positive, even if unsigned flag is different.
Fixed Item_cache_str::save_in_field() to have identical null check as other similar functions
Added proper NULL check to Item_cache_int::save_in_field()
sql/item_cmpfunc.cc:
Don't call convert_constant_item() if there is nothing that is worth converting.
Simplified test when years should be converted
sql/item_sum.cc:
Mark cache values in Item_sum_hybrid as not constants to ensure they are not replaced by other cache values in compare_datetime()
sql/item_timefunc.cc:
Changed sec_to_time() to take a my_decimal argument to ensure we don't loose any sub seconds.
Added Item_temporal_func::get_time() (This simplifies some things)
sql/mysql_priv.h:
Added Lazy_string_decimal()
sql/mysqld.cc:
Added my_decimal constants max_seconds_for_time_type, time_second_part_factor
sql/table.cc:
Changed expr_arena to be of type CONVENTIONAL_EXECUTION to ensure that we don't loose any items that are created by fix_fields()
sql/tztime.cc:
TIME_to_gmt_sec() now sets *in_dst_time_gap in case of errors
This is needed to be able to detect if timestamp is 0
storage/maria/lockman.c:
Changed from my_getsystime() to set_timespec_time_nsec()
storage/maria/ma_loghandler.c:
Changed from my_getsystime() to my_hrtime()
storage/maria/ma_recovery.c:
Changed from my_getsystime() to mmicrosecond_interval_timer()
storage/maria/unittest/trnman-t.c:
Changed from my_getsystime() to mmicrosecond_interval_timer()
storage/xtradb/handler/ha_innodb.cc:
Added support for new time,datetime and timestamp
unittest/mysys/thr_template.c:
my_getsystime() -> my_interval_timer()
unittest/mysys/waiting_threads-t.c:
my_getsystime() -> my_interval_timer()
The patch imposes unconditional materialization for derived tables
used in update and multi-update statements.
Fixed a bug with a wrong order of processing derived tables/views
at the prepare stage that caused a crash for the variant of the
query from test case for bug 52157.
The error message is now based on GetLastError() rather than errno.
Background: errno is C runtime specific and in many circumstances
it is not set, e.g when using Win32 API or socket functions.
mysql-test/r/subselect4.result:
Moved test case for LP BUG#718593 into the correct test file subselect_mat_cost_bugs.test.
mysql-test/t/subselect4.test:
Moved test case for LP BUG#718593 into the correct test file subselect_mat_cost_bugs.test.
One was due the fact that the field SELECT_LEX::insert_tables was not
initialized while the second was due to missing initialization of
JOIN_TAB::preread_init_done in subselect_hash_sj_engine::make_unique_engine.
Removed an invalid assert.
Two of them (in the function make_join_statistics and in the function
sort_and_filter_keyuse) were due to bad merges while the third bug was
triggered by uninitialized values of the field JOIN_TAB::preread_init_done.
Fixed a compiler warning in mysql_priv.h.
Commented out some queries from the funcs_1 suite returning wrong
errors due to bugs concerning updatable views (see bugs 784297 and
784303).
Adjusted some results for the test cases with derived tables from
different suites.
extra/comp_err.c:
Allow one to have multiple start-error-numbers in the same error.txt file.
Generate 'empty' error strings for the missing error numbers in the errmsg.sys file
mysql-test/r/bigint.result:
Update results to use new error numbers
mysql-test/r/dyncol.result:
Update results to use new error numbers
mysql-test/r/func_math.result:
Update results to use new error numbers
mysql-test/r/func_str.result:
Update results to use new error numbers
mysql-test/r/plugin.result:
Update results to use new error numbers
mysql-test/r/table_options.result:
Update results to use new error numbers
mysql-test/r/type_newdecimal.result:
Update results to use new error numbers
mysql-test/r/warnings.result:
Update results to use new error numbers
mysql-test/suite/vcol/r/vcol_ins_upd_innodb.result:
Update results to use new error numbers
mysql-test/suite/vcol/r/vcol_ins_upd_myisam.result:
Update results to use new error numbers
mysql-test/suite/vcol/r/vcol_misc.result:
Update results to use new error numbers
sql/derror.cc:
Ensure we don't read a errmsg.sys with a missing required error message; This change was needed as errmsg.sys may now contain empty error messages between the MySQL and MariaDB error messages.
If error message file didn't exist and we have not read one in the past, don't continue.
Give better error message if the errmsg.sys header has changed.
sql/share/errmsg.txt:
Create new section, starting from 1900, for MariaDB error messages
sql/derror.cc:
Ensure we don't read a MariaDB 5.3 errmsg.sys file with moved error messages or a new errmsg.sys file with holes for not used error messages
If error message file didn't exist and we have not read one in the past, don't continue.
Give better error message if the errmsg.sys header has changed.
Fields belonging to views in general cannot be substituted for
equal items, in particular for constants, because all references
to a view field refer to the same Item_field object while they
could be used in different OR parts of the where condition and
belong to different equivalence classes (to different Item_equals).
That's why substitution for equal items in any context is allowed
only in place of Item_direct_view_ref objects, but not in place of
Item_fields these objects refer to.
Due to some erroneous code in the patch for bug 717577 substitution
for view fields were allowed in some context.This could lead
to wrong results returned by queries using views.
The fix prohibits substitution of view fields for equal items
in any context.
The patch also changes slightly the compile method for the Item_func
class. Now if the analyze method returns NULL in his parameter the
compile method is not called for the arguments of the function
at all. A similar change was made for the Item_ref class.
- in advance_sj_state(), remember join->cur_dups_producing_tables in
pos->prefix_dups_producing_tables *before* we modify it, so that
restore_prev_sj_state() restores cur_dups_producing_tables in all cases.
- Updated test results in subselect_sj2[_jcl6].result (the original EXPLAIN
was invalid there)
Adjusted the result files in the pbxt, innodb and innodb_plugin suites.
Commented out a failing test case in innodb.innodb_multi_update.test.
It should be returned back when the problem with multi-update of derived
tables (bug 784297) is resolved.
sql/event_parse_data.cc:
don't use "not_used" variable
sql/item_timefunc.cc:
Item_temporal_func::fix_length_and_dec()
and other changes
sql/item_timefunc.h:
introducing Item_timefunc::fix_length_and_dec()
sql/share/errmsg.txt:
don't say "column X" in the error message that used not only for columns
* my_getsystime() is only an interval timer. Its value can beused for calculating
time intervals.
* renamed my_getsystime() to my_interval_timer(), to make the semantics
clearer and let the compiler catch wrong usages of my_getsystime()
(also future ones, that may come in merges).
* increased its granularity from 100ns to 1ns, old value was for UUID,
but as UUID can no longer use it directly there is no need to downgrade
the OS provided value
* fixed the UUID code to anchor the my_interval_timer() on the epoch, as
required by the UUID standard. That is, this was only needed by UUID,
and now I've moved it to UUID code from my_getsystime().
* fixed other wrong usages of my_getsystime() - e.g. in calculating
times for pthread_cond_timedwait. It was buggy and could've caused
long waits if OS clock would be changed.
