- When find_all_keys() checks which table columns are needed for table scan
that is done before the sorting, it should also analyze pushed index condition.
This is achieved by remembering/checking pre-index-pushed condition.
Incorrect limitation on number of parameters removed.
mysql-test/r/subselect_cache.result:
Test suite added.
mysql-test/t/subselect_cache.test:
Test suite added.
sql/sql_class.h:
Iterator changed.
sql/sql_expression_cache.cc:
Incorrect limitation removed.
Removing NULL references from subquery parameter list added.
Removed indirect reference in equalities for cache index lookup.
We should use a direct reference because some optimization of the
query may optimize out a condition predicate and if the outer reference
is the only element of the condition predicate the indirect reference
becomes NULL.
We can resolve correctly the indirect reference in
Expression_cache_tmptable::make_equalities because it is called before
optimization of the cached subquery.
mysql-test/r/subquery_cache.result:
The test suite for the bug added.
mysql-test/t/subquery_cache.test:
The test suite for the bug added.
sql/sql_expression_cache.cc:
Removed indirect reference in equalities for cache index lookup.
Added get_tmp_table_item() to cache wrapper as it has all not simple Items (Item_func, Item_field, Item_subquery).
mysql-test/r/subquery_cache.result:
Tests for bugs fixed.
mysql-test/t/subquery_cache.test:
Tests for bugs fixed.
sql/item.cc:
Added get_tmp_table_item() to cache wrapper as it has all not simple Items (Item_func, Item_field, Item_subquery).
sql/item.h:
Added get_tmp_table_item() to cache wrapper as it has all not simple Items (Item_func, Item_field, Item_subquery).
- Lots of TODO comments
- add mrr_sort_keys flag to @@optimizer_switch
- [from Igor] SQL layer part passes HA_MRR_MATERIALIZED_KEYS flag
- Don't call rnd_pos() many times in a row if sorted rowid buffer
has the same rowid value for multiple consequive (rowid, range_id) pairs.
was not cleaned up between PS re-executions. The reason was two-fold:
- a merge with mysql-6.0 missed select_union::cleanup() that should
have cleaned up the temp table, and
- the subclass of select_union used by materialization didn't call
the base class cleanup() method.
- Let "mysqld --help --verbose" list all optimizer options
- Make it possible to add new @@optimizer_switch flags w/o causing .result
changes all over the testsuite:
= Remove "select @@optimizer_switch" from tests that do not need all switches
= Move @@optimizer_switch-specific tests to t/optimizer_switch.test
libmysqld/Makefile.am:
The new file added.
mysql-test/r/index_merge_myisam.result:
subquery_cache optimization option added.
mysql-test/r/myisam_mrr.result:
subquery_cache optimization option added.
mysql-test/r/subquery_cache.result:
The subquery cache tests added.
mysql-test/r/subselect3.result:
Subquery cache switched off to avoid changing read statistics.
mysql-test/r/subselect3_jcl6.result:
Subquery cache switched off to avoid changing read statistics.
mysql-test/r/subselect_no_mat.result:
subquery_cache optimization option added.
mysql-test/r/subselect_no_opts.result:
subquery_cache optimization option added.
mysql-test/r/subselect_no_semijoin.result:
subquery_cache optimization option added.
mysql-test/r/subselect_sj.result:
subquery_cache optimization option added.
mysql-test/r/subselect_sj_jcl6.result:
subquery_cache optimization option added.
mysql-test/t/subquery_cache.test:
The subquery cache tests added.
mysql-test/t/subselect3.test:
Subquery cache switched off to avoid changing read statistics.
sql/CMakeLists.txt:
The new file added.
sql/Makefile.am:
The new files added.
sql/item.cc:
Expression cache item (Item_cache_wrapper) added.
Item_ref and Item_field fixed for correct usage of result field and fast resolwing in SP.
sql/item.h:
Expression cache item (Item_cache_wrapper) added.
Item_ref and Item_field fixed for correct usage of result field and fast resolwing in SP.
sql/item_cmpfunc.cc:
Subquery cache added.
sql/item_cmpfunc.h:
Subquery cache added.
sql/item_subselect.cc:
Subquery cache added.
sql/item_subselect.h:
Subquery cache added.
sql/item_sum.cc:
Registration of subquery parameters added.
sql/mysql_priv.h:
subquery_cache optimization option added.
sql/mysqld.cc:
subquery_cache optimization option added.
sql/opt_range.cc:
Fix due to subquery cache.
sql/opt_subselect.cc:
Parameters of the function cahnged.
sql/procedure.h:
.h file guard added.
sql/sql_base.cc:
Registration of subquery parameters added.
sql/sql_class.cc:
Option to allow add indeces to temporary table.
sql/sql_class.h:
Item iterators added.
Option to allow add indeces to temporary table.
sql/sql_expression_cache.cc:
Expression cache for caching subqueries added.
sql/sql_expression_cache.h:
Expression cache for caching subqueries added.
sql/sql_lex.cc:
Registration of subquery parameters added.
sql/sql_lex.h:
Registration of subqueries and subquery parameters added.
sql/sql_select.cc:
Subquery cache added.
sql/sql_select.h:
Subquery cache added.
sql/sql_union.cc:
A new parameter to the function added.
sql/sql_update.cc:
A new parameter to the function added.
sql/table.cc:
Procedures to manage temporarty tables index added.
sql/table.h:
Procedures to manage temporarty tables index added.
storage/maria/ha_maria.cc:
Fix of handler to allow destoy a table in case of error during the table creation.
storage/maria/ha_maria.h:
.h file guard added.
storage/myisam/ha_myisam.cc:
Fix of handler to allow destoy a table in case of error during the table creation.
join cache module.
Without these calls SELECTs over tables with virtual columns
that used join cache could return wrong results. This could
be seen with the test case added into vcol_misc.test
5.3 had
handler::index_only_read_time(uint keynr, double records)
while 5.2 got:
handler::keyread_read_time(uint index, uint ranges, ha_rows rows)
which causes floor()'ing of rows parameter, which makes all further costs different.
* remove handler::index_read_last()
* create handler::keyread_read_time() (was get_index_only_read_time() in opt_range.cc)
* ha_show_status() allows engine's show_status() to fail
* remove HTON_FLUSH_AFTER_RENAME
* fix key_cmp_if_same() to work for floats and doubles
* set table->status in the server, don't force engines to do it
* increment status vars in the server, don't force engines to do it
mysql-test/r/status_user.result:
correct test results - innodb was wrongly counting internal
index searches as handler_read_* calls.
sql/ha_partition.cc:
compensate for handler incrementing status counters -
we want to count only calls to underlying engines
sql/handler.h:
inline methods moved to sql_class.h
sql/key.cc:
simplify the check
sql/opt_range.cc:
move get_index_only_read_time to the handler class
sql/sp.cc:
don't use a key that's stored in the record buffer -
the engine can overwrite the buffer with anything, destroying the key
sql/sql_class.h:
inline handler methods that need to see THD and TABLE definitions
sql/sql_select.cc:
no ha_index_read_last_map anymore
sql/sql_table.cc:
remove HTON_FLUSH_AFTER_RENAME
sql/table.cc:
set HA_CAN_MEMCMP as appropriate
sql/tztime.cc:
don't use a key that's stored in the record buffer -
the engine can overwrite the buffer with anything, destroying the key
storage/myisam/ha_myisam.cc:
engines don't need to update table->status or use ha_statistic_increment anymore
storage/myisam/ha_myisam.h:
index_read_last_map is no more
mysql-test/suite/pbxt/r/mysqlshow.result:
update the forgotten test results
sql/table.cc:
add defensive asserts.
fix the code that didn't in MySQL > 5.2.0 with frm's created before 5.1.10
Fixed failing test innodb.innodb-autoinc.test
Enabled innodb test suite
mysql-test/mysql-test-run.pl:
Enabled innodb test suite
mysql-test/r/innodb-autoinc.result:
Removed test as it exists in suite innodb
mysql-test/suite/innodb/t/disabled.def:
Removed innodb-autoinc
mysql-test/suite/innodb/t/innodb-autoinc.test:
Update to be able to run with plugin
mysql-test/t/innodb-autoinc.test:
Removed test as it exists in suite innodb
sql/filesort.cc:
Removed not used variable
sql/slave.cc:
Remove compiler warnings
storage/pbxt/src/ha_pbxt.cc:
Removed not used variable
storage/xtradb/dict/dict0crea.c:
Fixed compiler warning about unsigned comparison
support-files/compiler_warnings.supp:
Disable some not relevant warnings
Fixed some bugs introduced in 5.1.47
Disabled some tests until we have merged with latest Xtradb
configure.in:
Added testing if valgrind/memcheck.h exists
storage/pbxt/src/ha_pbxt.cc:
LOCK_plugin is not anymore locked in init
The statistics after a sequence of inserts/deletes are updated asynchronously
in PBXT, causing unpredictable test results. Fix by running the test on a
fresh copy of the table with no deletes performed, to get stable results.
1. fix broken change user handling (no restart should happen in the normal case)
2. add assert to guarantee that we never send a request to change to the same plugin
3. "fix" plugin string as sent by the client to be able to compare native plugins by pointers
4. more complete MYSQL initialization in the embedded case
5. change_user.test updated to handle -with-embedded-privilege-control builds
mysql-test/suite/binlog/r/binlog_unsafe.result:
Updated results (RAND() doesn't require statement based logging anymore for inserts)
mysql-test/t/information_schema_all_engines.test:
Ensure that InnoDB is used
storage/pbxt/bin/Makefile.am:
Fixed build failure on build hosts
(Patch from Kristian Nielsen)
storage/pbxt/bin/xtstat_xt.cc:
Added missing argument
storage/pbxt/src/datalog_xt.cc:
Fixed compiler warnings
storage/pbxt/src/ha_pbxt.cc:
Fixed compiler warnings
storage/pbxt/src/table_xt.cc:
Fixed compiler warnings
support-files/compiler_warnings.supp:
Added suppression of compiler warnings in Xtradb
(Failure can only happen for corrupted tables, but should be fixed properly at some point)
- INSERT with RAND() doesn't require row based logging again
- Some bugs fixed in opt_range() where we table->key_read was wrongly used
.bzrignore:
Ignore new xtstat binary
mysql-test/r/index_merge_myisam.result:
Update results (old result was wrong)
mysql-test/suite/binlog/r/binlog_stm_binlog.result:
Added drop table first
mysql-test/suite/binlog/r/binlog_stm_unsafe_warning.result:
Added test for when RAND() requires row based logging
mysql-test/suite/binlog/t/binlog_stm_binlog.test:
Added drop table first
mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test:
Added test for when RAND() requires row based logging
scripts/make_binary_distribution.sh:
Removed type from last commit
sql/item_create.cc:
Don't require row based logging when using RAND() with INSERT
sql/opt_range.cc:
Revert wrong patch from Oracle:
- As QUICK_RANGE_SELECT uses it's own 'file' handler to the tables, one can't use 'table->key_read' as a flag to detect if index only read (keyread) is used or not
- Don't set keyread if keyread is already enabled
- Don't disable key read, if we didn't enable it ourselves
- Simplify code (and ensure that we do proper cleanup of index only read)
sql/opt_range.h:
Added flags to detect if the range optimizer enabled index only read (key read) or not
sql/opt_sum.cc:
Use our more optimized macros
sql/sql_lex.h:
Added 'readable' function to check if we are in a sub query function or not (not normal query or sub query in FROM clause)
sql/sql_select.cc:
Use our more optimized keyread macros
Added ASSERTS early
Simplify code on eliminate_item_equal()
Fixed that substitute_for_best_equal_field() doesn't core dump in case of out of memory conditions.
Removed not needed test for 'field->maybe_null()'
Replaced master_unit()->item with is_subquery_function() (More readable)
sql/sql_update.cc:
Use our more optimized keyread macros
sql/table.cc:
Use our more optimized keyread macros
sql/table.h:
Use separate functions to enable/disable Index only reads
- Safer, more readable, better logging and faster.
