- Re-worked the prev_record_reads() function to return the lower bound of
number of different table access scans that will be performed.
mysql-test/r/join.result:
BUG#14940: testcase
mysql-test/t/join.test:
BUG#14940: testcase
sql/sql_select.cc:
BUG#14940: Slow join order is chosen:
- Re-worked the prev_record_reads() function to return the lower bound of
number of different table access scans that will be performed.
sql/sql_select.h:
BUG#14940: Slow join order is chosen:
- Added comments in struct POSITION
- Added POSITION::ref_depend_map: bitmap of tables that the table access
method depends on.
into mockturtle.local:/home/dlenev/src/mysql-5.0-rt-merge
mysql-test/r/temp_table.result:
Auto merged
mysql-test/t/temp_table.test:
Auto merged
sql/sql_select.cc:
Manual merge.
sql/sql_table.cc:
Manual merge.
while space allocation
Under some circumstances DISTINCT clause can be converted to grouping.
In such cases grouping is performed by all items in the select list.
If an ORDER clause is present then items from it is prepended to group list.
But the case with ORDER wasn't taken into account when allocating the
array for sum functions. This leads to memory corruption and crash.
The JOIN::alloc_func_list() function now allocates additional space if there
is an ORDER by clause is specified and DISTINCT -> GROUP BY optimization is
possible.
mysql-test/t/select.test:
Added the test case for bug#20503: Server crash due to the ORDER clause not taken into account while space allocation
mysql-test/r/select.result:
Added the test case for bug#20503: Server crash due to the ORDER clause not taken into account while space allocation
sql/sql_select.cc:
Fixed bug#20503: Server crash due to the ORDER clause not taken into account
while space allocation
The JOIN::alloc_func_list() function now allocates additional space if there
is an ORDER by clause is specified and DISTINCT -> GROUP BY optimization is
possible.
while space allocation
Under some circumstances DISTINCT clause can be converted to grouping.
In such cases grouping is performed by all items in the select list.
If an ORDER clause is present then items from it is prepended to group list.
But the case with ORDER wasn't taken into account when allocating the
array for sum functions. This leads to memory corruption and crash.
The JOIN::alloc_func_list() function now allocates additional space if there
is an ORDER by clause is specified and DISTINCT -> GROUP BY optimization is
possible.
create_tmp_table()".
The fix for bug 21787 "COUNT(*) + ORDER BY + LIMIT returns wrong
result" introduced valgrind warnings which occured during execution
of information_schema.test and sp-prelocking.test in version 5.0.
There were no user visible effects.
The latter fix made create_tmp_table() dependant on
THD::lex::current_select value. Valgrind warnings occured when this
function was executed and THD::lex::current_select member pointed
to uninitialized SELECT_LEX instance.
This fix tries to remove this dependancy by moving some logic
outside of create_tmp_table() function.
sql/sql_select.cc:
create_tmp_table():
Moved code which is responsible for determining if optimization
which pushes down LIMIT clause to temporary table creation is
applicable out of this function.
Such move made this function independant of THD::lex::current_select
value and removed valgrind warnings which occured in cases when this
member pointed to uninitialized SELECT_LEX object (particularly these
warnings occured in sp-prelocking.test and information_schema.test
in 5.0). This seems like a better solution than trying to force this
pointer always to point to relevant select because:
- In some cases when we use create_tmp_table() there are no relevant
SELECT_LEX object (we use it just to create temporary table/object).
- There is only one place in code where we call this funciton and
where this optimization can be enabled. And in this place we
already have some logic which tries to determine if it is applicable.
create_tmp_table()".
The fix for bug 21787 "COUNT(*) + ORDER BY + LIMIT returns wrong
result" introduced valgrind warnings which occured during execution
of information_schema.test and sp-prelocking.test in version 5.0.
There were no user visible effects.
The latter fix made create_tmp_table() dependant on
THD::lex::current_select value. Valgrind warnings occured when this
function was executed and THD::lex::current_select member pointed
to uninitialized SELECT_LEX instance.
This fix tries to remove this dependancy by moving some logic
outside of create_tmp_table() function.
post-review fixes as indicated by Serg.
manual testing of error cases done in 5.0 due to support for DBUG_EXECUTE_IF
to insert errors.
Unable to write test case for mysql-test until 5.1 due to support for setting
debug options at runtime.
sql/ha_blackhole.cc:
update for handler::info() now returning int
sql/ha_blackhole.h:
update for handler::info() now returning int
sql/ha_isam.cc:
update for handler::info() now returning int
sql/ha_isam.h:
update for handler::info() now returning int
sql/ha_isammrg.cc:
update for handler::info() now returning int
sql/ha_isammrg.h:
update for handler::info() now returning int
sql/item_sum.cc:
update for handler::info() now returning int.
return error to user if info call fails
sql/sql_delete.cc:
update for handler::info() now returning int.
return error to user if info call fails
sql/sql_select.cc:
update for handler::info() now returning int.
return error to user if info call fails
sql/sql_union.cc:
update for handler::info() now returning int.
return error to user if info call fails
post-review fixes as indicated by Serg.
manual testing of error cases done in 5.0 due to support for DBUG_EXECUTE_IF
to insert errors.
Unable to write test case for mysql-test until 5.1 due to support for setting
debug options at runtime.
into dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.1-opt
sql/field.h:
Auto merged
sql/filesort.cc:
Auto merged
sql/item.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
into dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.0-opt
mysql-test/r/view.result:
Auto merged
mysql-test/t/view.test:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
into macbook.gmz:/Users/kgeorge/mysql/work/B21174-5.1-opt
mysql-test/r/ctype_ucs.result:
Auto merged
mysql-test/r/func_gconcat.result:
Auto merged
mysql-test/r/func_group.result:
Auto merged
mysql-test/r/group_by.result:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/r/view.result:
Auto merged
mysql-test/t/ctype_ucs.test:
Auto merged
mysql-test/t/func_gconcat.test:
Auto merged
mysql-test/t/ps.test:
Auto merged
mysql-test/t/view.test:
Auto merged
sql/field.h:
Auto merged
sql/filesort.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_sum.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
storage/myisam/mi_check.c:
Auto merged
mysql-test/r/ps.result:
merge 5.0-opt -> 5.1-opt
sql/unireg.cc:
merge 5.0-opt -> 5.1-opt
- reversed the patch for 5.0 and moved to 5.1
mysql-test/r/group_by.result:
Bug #21174: Index degrades sort performance and optimizer does not honor IGNORE INDEX
- reversed the patch for 5.0
mysql-test/t/group_by.test:
Bug #21174: Index degrades sort performance and optimizer does not honor IGNORE INDEX
- reversed the patch for 5.0
sql/sql_select.cc:
Bug #21174: Index degrades sort performance and optimizer does not honor IGNORE INDEX
- reversed the patch for 5.0
into janus.mylan:/usr/home/serg/Abk/mysql-maria
configure.in:
Auto merged
include/Makefile.am:
Auto merged
mysys/Makefile.am:
Auto merged
mysys/my_bitmap.c:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
storage/maria/ha_maria.cc:
Auto merged
storage/myisam/ha_myisam.cc:
Auto merged
storage/maria/Makefile.am:
merged
unittest/Makefile.am:
merged
into chilla.local:/home/mydev/mysql-5.1-tomain
mysql-test/t/disabled.def:
Auto merged
sql/opt_range.cc:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/innodb_mysql.result:
Manual merge from 5.1-engines.
into willster.(none):/home/stewart/Documents/MySQL/4.1/bug19914-mk2
sql/ha_ndbcluster.cc:
Auto merged
sql/ha_ndbcluster.h:
Auto merged
sql/sql_select.cc:
Auto merged
into chilla.local:/home/mydev/mysql-4.1-bug14400-monty
BitKeeper/etc/ignore:
auto-union
mysql-test/r/myisam.result:
Auto merged
mysql-test/t/myisam.test:
Auto merged
sql/sql_select.cc:
Auto merged
into mysql.com:/home/psergey/mysql-5.1-bug22393
mysql-test/t/range.test:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/range.result:
Manual merge
into chilla.local:/home/mydev/mysql-5.1-bug14400-monty
BitKeeper/etc/ignore:
auto-union
include/my_global.h:
Auto merged
mysql-test/r/myisam.result:
Auto merged
mysql-test/t/myisam.test:
Auto merged
sql/handler.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/sql_select.cc:
Auto merged
storage/myisam/mi_rkey.c:
Auto merged
storage/myisam/mi_test_all.res:
Auto merged
storage/myisam/mi_test_all.sh:
Merge from 5.0.
into chilla.local:/home/mydev/mysql-5.0-bug14400-monty
BitKeeper/etc/ignore:
auto-union
include/my_global.h:
Auto merged
myisam/mi_rkey.c:
Auto merged
mysql-test/r/myisam.result:
Auto merged
mysql-test/t/myisam.test:
Auto merged
myisam/mi_test_all.res:
Manual merge from 4.1.
sql/sql_select.cc:
Manual merge from 4.1.
into chilla.local:/home/mydev/mysql-4.1-bug14400-monty
BitKeeper/etc/ignore:
auto-union
include/my_global.h:
Auto merged
myisam/mi_rkey.c:
Manual null merge as a better fix is already present.
mysql-test/r/myisam.result:
Manual null merge as a better fix is already present.
mysql-test/t/myisam.test:
Manual null merge as a better fix is already present.
sql/sql_select.cc:
Manual merge of purify improvements.
into dl145s.mysql.com:/data/bk/team_tree_merge/MERGE/mysql-5.1
mysql-test/r/func_gconcat.result:
Auto merged
mysql-test/r/func_group.result:
Auto merged
mysql-test/r/func_str.result:
Auto merged
mysql-test/r/func_time.result:
Auto merged
mysql-test/r/group_by.result:
Auto merged
mysql-test/r/heap_hash.result:
Auto merged
mysql-test/r/information_schema.result:
Auto merged
mysql-test/r/innodb_mysql.result:
Auto merged
mysql-test/r/join_outer.result:
Auto merged
mysql-test/r/olap.result:
Auto merged
mysql-test/r/query_cache.result:
Auto merged
mysql-test/r/range.result:
Auto merged
mysql-test/r/row.result:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/r/type_date.result:
Auto merged
mysql-test/r/union.result:
Auto merged
mysql-test/r/view_grant.result:
Auto merged
mysql-test/t/func_group.test:
Auto merged
mysql-test/t/func_str.test:
Auto merged
mysql-test/t/func_time.test:
Auto merged
mysql-test/t/view.test:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/log.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/opt_range.cc:
Auto merged
sql/opt_range.h:
Auto merged
sql/opt_sum.cc:
Auto merged
sql/sql_delete.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_list.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_update.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
mysql-test/t/sp.test:
SCCS merged
sql/item_cmpfunc.cc:
SCCS merged
sql/sql_select.cc:
SCCS merged
- Check if we have E(#rows) for 'range' access on the smaller interval
on the same index. If yes, adjust the estimate.
mysql-test/r/range.result:
BUG#22393: Testcase
mysql-test/t/range.test:
BUG#22393: Testcase
