list using a function
When executing dependent subqueries they are re-inited and re-exec() for
each row of the outer context.
The cause for the bug is that during subquery reinitialization/re-execution,
the optimizer reallocates JOIN::join_tab, JOIN::table in make_simple_join()
and the local variable in 'sortorder' in create_sort_index(), which is
allocated by make_unireg_sortorder().
Care must be taken not to allocate anything into the thread's memory pool
while re-initializing query plan structures between subquery re-executions.
All such items mush be cached and reused because the thread's memory pool
is freed at the end of the whole query.
Note that they must be cached and reused even for queries that are not
otherwise cacheable because otherwise it will grow the thread's memory
pool every time a cacheable query is re-executed.
We provide additional members to the JOIN structure to store references
to the items that need to be cached.
mysql-test/r/subselect.result:
Bug#21798: memory leak during query execution with subquery in column
list using a function
- test case
mysql-test/t/subselect.test:
Bug#21798: memory leak during query execution with subquery in column
list using a function
- test case
sql/mysql_priv.h:
Bug#21798: memory leak during query execution with subquery in column
list using a function
- cache the entities allocated in the threads memory pool by
JOIN::exec ().
sql/sql_delete.cc:
Bug#21798: memory leak during query execution with subquery in column
list using a function
- cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's
memory pool by JOIN::exec ().
sql/sql_select.cc:
Bug#21798: memory leak during query execution with subquery in column
list using a function
- cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's
memory pool by JOIN::exec ().
sql/sql_select.h:
Bug#21798: memory leak during query execution with subquery in column
list using a function
- cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's
memory pool by JOIN::exec ().
sql/sql_table.cc:
Bug#21798: memory leak during query execution with subquery in column
list using a function
- cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's
memory pool by JOIN::exec ().
sql/sql_update.cc:
Bug#21798: memory leak during query execution with subquery in column
list using a function
- cache the SORT_ORDER, TABLE * and JOIN_TAB allocated in the thread's
memory pool by JOIN::exec ().
list using a function
When executing dependent subqueries they are re-inited and re-exec() for
each row of the outer context.
The cause for the bug is that during subquery reinitialization/re-execution,
the optimizer reallocates JOIN::join_tab, JOIN::table in make_simple_join()
and the local variable in 'sortorder' in create_sort_index(), which is
allocated by make_unireg_sortorder().
Care must be taken not to allocate anything into the thread's memory pool
while re-initializing query plan structures between subquery re-executions.
All such items mush be cached and reused because the thread's memory pool
is freed at the end of the whole query.
Note that they must be cached and reused even for queries that are not
otherwise cacheable because otherwise it will grow the thread's memory
pool every time a cacheable query is re-executed.
We provide additional members to the JOIN structure to store references
to the items that need to be cached.
into neptunus.(none):/home/msvensson/mysql/mysql-4.1-maint
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/ps.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
into neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint
mysql-test/r/mysqltest.result:
Auto merged
mysql-test/r/ps_2myisam.result:
Auto merged
mysql-test/r/ps_3innodb.result:
Auto merged
mysql-test/r/ps_4heap.result:
Auto merged
mysql-test/r/ps_5merge.result:
Auto merged
BitKeeper/deleted/.del-mtr_stress.pl:
Auto merged
mysql-test/r/ps_6bdb.result:
Auto merged
mysql-test/r/ps_7ndb.result:
Auto merged
mysql-test/r/query_cache.result:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/mysqltest.test:
Auto merged
mysql-test/t/ps.test:
Auto merged
mysql-test/t/sp.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
BitKeeper/deleted/.del-mtr_im.pl:
Delete: mysql-test/lib/mtr_im.pl
client/mysqltest.c:
Use remote
mysql-test/mysql-test-run.pl:
Use remote
mysql-test/lib/mtr_process.pl:
Use remote
into shellback.(none):/home/msvensson/mysql/same_tools/my50-same_tools
mysql-test/include/ps_query.inc:
Auto merged
mysql-test/r/check.result:
Auto merged
mysql-test/r/connect.result:
Auto merged
mysql-test/r/flush.result:
Auto merged
mysql-test/r/flush_block_commit.result:
Auto merged
mysql-test/r/func_misc.result:
Auto merged
mysql-test/r/lock_multi.result:
Auto merged
mysql-test/r/mix_innodb_myisam_binlog.result:
Auto merged
mysql-test/r/ps_2myisam.result:
Auto merged
mysql-test/r/ps_3innodb.result:
Auto merged
mysql-test/r/ps_4heap.result:
Auto merged
mysql-test/r/ps_5merge.result:
Auto merged
mysql-test/r/ps_6bdb.result:
Auto merged
mysql-test/r/ps_7ndb.result:
Auto merged
mysql-test/r/rename.result:
Auto merged
mysql-test/r/rpl000001.result:
Auto merged
mysql-test/r/rpl_error_ignored_table.result:
Auto merged
mysql-test/r/rpl_master_pos_wait.result:
Auto merged
BitKeeper/deleted/.del-rpl000018.test:
Auto merged
BitKeeper/deleted/.del-rpl_heap.test:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/r/synchronization.result:
Auto merged
mysql-test/t/ps.test:
Auto merged
mysql-test/t/ps_1general.test:
Auto merged
mysql-test/t/ps_grant.test:
Auto merged
mysql-test/t/rpl_flush_tables.test:
Auto merged
mysql-test/t/rpl_trunc_temp.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
BitKeeper/deleted/.del-show_msg80.inc:
Delete: mysql-test/include/show_msg80.inc
BitKeeper/deleted/.del-init_file.result:
Delete: mysql-test/r/init_file.result
BitKeeper/deleted/.del-mysql_client_test.result:
Delete: mysql-test/r/mysql_client_test.result
BitKeeper/deleted/.del-show_msg.inc:
Delete: mysql-test/include/show_msg.inc
client/Makefile.am:
Use local file
client/mysqltest.c:
Use backported version of mysqltest
mysql-test/r/mysqltest.result:
Use backported file
mysql-test/t/mysqltest.test:
Use backported version
mysql-test/r/type_blob.result:
Manual merge
mysql-test/t/connect.test:
Used local version
mysql-test/t/init_file.test:
Manual merge
mysql-test/t/mysql_client_test.test:
Manual merge
mysql-test/t/type_blob.test:
Manual merge
- ie. backport from 5.1
- also update testcase error dected by new version
mysql-test/include/show_msg.inc:
BitKeeper file /home/msvensson/mysql/same_tools/my41-same_tools/mysql-test/include/show_msg.inc
mysql-test/include/show_msg80.inc:
BitKeeper file /home/msvensson/mysql/same_tools/my41-same_tools/mysql-test/include/show_msg80.inc
BitKeeper/deleted/.del-rpl_chain_temp_table.test:
Delete: mysql-test/t/rpl_chain_temp_table.test
BitKeeper/deleted/.del-rpl_chain_temp_table.result:
Delete: mysql-test/r/rpl_chain_temp_table.result
BitKeeper/deleted/.del-rpl_failsafe.result:
Delete: mysql-test/r/rpl_failsafe.result
BitKeeper/deleted/.del-rpl_failsafe.test:
Delete: mysql-test/t/rpl_failsafe.test
BitKeeper/deleted/.del-rpl_heap.test:
Delete: mysql-test/t/rpl_heap.test
BitKeeper/deleted/.del-rpl_heap.result:
Delete: mysql-test/r/rpl_heap.result
BitKeeper/deleted/.del-rpl000018.result:
Delete: mysql-test/r/rpl000018.result
BitKeeper/deleted/.del-rpl000018.test:
Delete: mysql-test/t/rpl000018.test
client/Makefile.am:
Link mysqltest with mysys/my_copy.c
client/mysqltest.c:
Update mysqltest to latest version
mysql-test/include/have_multi_ndb.inc:
Remove old syntax "@filename" in favor of "--require filename"
mysql-test/include/master-slave.inc:
Remove old syntax "@filename" in favor of "--require filename"
mysql-test/include/ps_query.inc:
Remove the comment about no output now when it does.
mysql-test/r/check.result:
Update output from --send
mysql-test/r/connect.result:
Update result file for connect test after backport form 5.1
mysql-test/r/flush.result:
Update output from --send
mysql-test/r/flush_block_commit.result:
Update output from --send
mysql-test/r/func_misc.result:
Update output from --send
mysql-test/r/grant2.result:
Update output from --send
mysql-test/r/handler.result:
Update output from --send
mysql-test/r/kill.result:
Update output from --send
mysql-test/r/lock_multi.result:
Update output from --send
mysql-test/r/mix_innodb_myisam_binlog.result:
Update output from --send
mysql-test/r/mysqltest.result:
Update mysqltest.result after backport
mysql-test/r/ps_2myisam.result:
Update result as the output from query is now printed
mysql-test/r/ps_3innodb.result:
Update result as the output from query is now printed
mysql-test/r/ps_4heap.result:
Update result as the output from query is now printed
mysql-test/r/ps_5merge.result:
Update result as the output from query is now printed
mysql-test/r/ps_6bdb.result:
Update result as the output from query is now printed
mysql-test/r/ps_7ndb.result:
Update result as the output from query is now printed
mysql-test/r/rename.result:
Update output from --send
mysql-test/r/rpl000001.result:
Update output from --send
mysql-test/r/rpl_error_ignored_table.result:
Update output from --send
mysql-test/r/rpl_master_pos_wait.result:
Update output from --send
mysql-test/r/subselect.result:
Update result file after adding missing ;
mysql-test/r/synchronization.result:
Update output from --send
mysql-test/r/type_blob.result:
Update result file after adding missing ;
mysql-test/t/connect.test:
Backport test from 5.1
mysql-test/t/init_file.test:
Update test so something is printed
mysql-test/t/mysql_client_test.test:
Update test so result is sent to file and something is printed
mysql-test/t/mysqltest.test:
Backport latest mysqltest.test file
mysql-test/t/ps.test:
Move the --replace_column statement to just before the statetement it should replace
mysql-test/t/ps_1general.test:
Move the --replace_column statement to just before the statetement it should replace
mysql-test/t/ps_grant.test:
Remove the $DB, no other test uses it
mysql-test/t/rpl_flush_tables.test:
Fetch $SERVER_VERSION from the db server
mysql-test/t/rpl_trunc_temp.test:
Remove the selection of connection master after it's been disconnected already
mysql-test/t/subselect.test:
Add missing ;
mysql-test/t/type_blob.test:
Add missing ;
an ALL/ANY quantified subquery in HAVING.
The Item::split_sum_func2 method should not create Item_ref
for objects of any class derived from Item_subselect.
mysql-test/r/subselect.result:
Added a test case for bug #21853.
mysql-test/t/subselect.test:
Added a test case for bug #21853.
an ALL/ANY quantified subquery in HAVING.
The Item::split_sum_func2 method should not create Item_ref
for objects of any class derived from Item_subselect.
into macbook.gmz:/Users/kgeorge/mysql/work/B21180-4.1-opt
mysql-test/r/subselect.result:
merge of 4.1-opt
mysql-test/t/subselect.test:
merge of 4.1-opt
sql/opt_range.h:
merge of 4.1-opt
wrong results
Mark the containing Item(s) (Item_subselect descendant usually) of
a subselect as containing aggregate functions if it has references
to aggregates functions that are calculated outside its context.
This tels end_send_group() not to make an Item_subselect descendant in
select list a copy and causes the correct value being returned.
mysql-test/r/func_group.result:
Bug #21540: Subqueries with no from and aggregate functions return
wrong results
- test cases
mysql-test/r/subselect.result:
Bug #21540: Subqueries with no from and aggregate functions return
wrong results
- fixed the result of an existing testcase.
mysql-test/t/subselect.test:
Bug #21540: Subqueries with no from and aggregate functions return
wrong results
- test cases
sql/item_sum.cc:
Bug #21540: Subqueries with no from and aggregate functions return
wrong results
Mark the containing Item (Item_subselect descendant usually) of
a subselect as containing aggregate functions if it has references
to aggregates functions that are calculated outside its context.
This tels end_send_group() not to make an Item_subselect descendant in
select list a copy and causes the correct value being returned.
wrong results
Mark the containing Item(s) (Item_subselect descendant usually) of
a subselect as containing aggregate functions if it has references
to aggregates functions that are calculated outside its context.
This tels end_send_group() not to make an Item_subselect descendant in
select list a copy and causes the correct value being returned.
into rakia.(none):/home/kgeorge/mysql/autopush/B14654-5.0-opt
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/subselect.test:
Auto merged
sql/sql_yacc.yy:
Auto merged
Made the parser to support parenthesis around UNION branches.
This is done by amending the rules of the parser so it generates the correct
structure.
Currently it supports arbitrary subquery/join/parenthesis operations in the
EXISTS clause.
In the IN/scalar subquery case it will allow adding nested parenthesis only
if there is an UNION clause after the parenthesis. Otherwise it will just
treat the multiple nested parenthesis as a scalar expression.
It adds extra lex level for ((SELECT ...) UNION ...) to accommodate for the
UNION clause.
mysql-test/r/subselect.result:
Bug#14654 : Cannot select from the same table twice within a UNION statement
- test cases
mysql-test/t/subselect.test:
Bug#14654 : Cannot select from the same table twice within a UNION statement
- test cases
sql/sql_yacc.yy:
Bug#14654 : Cannot select from the same table twice within a UNION statement
- shuffle around the rules for the parenthesis in subselect
Made the parser to support parenthesis around UNION branches.
This is done by amending the rules of the parser so it generates the correct
structure.
Currently it supports arbitrary subquery/join/parenthesis operations in the
EXISTS clause.
In the IN/scalar subquery case it will allow adding nested parenthesis only
if there is an UNION clause after the parenthesis. Otherwise it will just
treat the multiple nested parenthesis as a scalar expression.
It adds extra lex level for ((SELECT ...) UNION ...) to accommodate for the
UNION clause.
Must not use Item_direct_ref in HAVING because it points to
the new value (witch is not yet calculated for the first row).
mysql-test/r/subselect.result:
Bug #16255: Subquery in where
- test case
mysql-test/t/subselect.test:
Bug #16255: Subquery in where
- test case
sql/item_subselect.cc:
Bug #16255: Subquery in where
Must not use Item_direct_ref in HAVING because it points to
the new value (witch is not yet calculated for the first row).
Reseting subqueries with "quick" access methods was incomplete.
Partially backported the correct reseting of QUICK_SELECTs from 5.x.
mysql-test/r/subselect.result:
Bug #21180: Subselect with index for both WHERE and ORDER BY produces empty result
- test case
mysql-test/t/subselect.test:
Bug #21180: Subselect with index for both WHERE and ORDER BY produces empty result
- test case
sql/opt_range.cc:
Bug #21180: Subselect with index for both WHERE and ORDER BY produces empty result
- partially backported the correct reseting of QUICK_SELECTs from 5.x.
sql/opt_range.h:
Bug #21180: Subselect with index for both WHERE and ORDER BY produces empty result
- partially backported the correct reseting of QUICK_SELECTs from 5.x.
into mysql.com:/home/psergey/mysql-5.0-opt
sql/item_cmpfunc.cc:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/item_subselect.h:
Auto merged
sql/sql_parse.cc:
Auto merged
mysql-test/r/subselect.result:
Manual merge
mysql-test/t/subselect.test:
Manual merge
sql/mysql_priv.h:
Manual merge
The bug caused a crash of the server if a subquery with
ORDER BY DESC used the range access method.
The bug happened because the method QUICK_SELECT_DESC::reset
was not reworked after MRR interface had been introduced.
mysql-test/r/subselect.result:
Added a test case for bug #20869.
mysql-test/t/subselect.test:
Added a test case for bug #20869.
The bug caused a crash of the server if a subquery with
ORDER BY DESC used the range access method.
The bug happened because the method QUICK_SELECT_DESC::reset
was not reworked after MRR interface had been introduced.
The bug was due to a loss happened during a refactoring made
on May 30 2005 that modified the function JOIN::reinit.
As a result of it for any subquery the value of offset_limit_cnt
was not restored for the following executions. Yet the first
execution of the subquery made it equal to 0.
The fix restores this value in the function JOIN::reinit.
mysql-test/r/subselect.result:
Added a test case fir bug #20519.
mysql-test/t/subselect.test:
Added a test case fir bug #20519.
The bug was due to a loss happened during a refactoring made
on May 30 2005 that modified the function JOIN::reinit.
As a result of it for any subquery the value of offset_limit_cnt
was not restored for the following executions. Yet the first
execution of the subquery made it equal to 0.
The fix restores this value in the function JOIN::reinit.
into moonbone.local:/work/tmp_merge-5.0-opt-mysql
sql/item_subselect.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/subselect.result:
Manual merge
mysql-test/t/subselect.test:
Manual merge
