The bug caused wrong result sets for union constructs of the form
(SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2.
For such queries order lists were concatenated and limit clause was
completely neglected.
mysql-test/r/order_by.result:
Added a test case for bug #18767.
mysql-test/t/order_by.test:
Added a test case for bug #18767.
sql/sql_lex.h:
Fixed bug #18767.
Placed the code the created a fake SELECT_LEX into a separate function.
sql/sql_parse.cc:
Fixed bug #18767.
Placed the code the created a fake SELECT_LEX into a separate function.
sql/sql_select.cc:
Fixed bug #18767.
Changed the condition on which a SELECT is treated as part of a UNION.
The SELECT in
(SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2
now is handled in the same way as the first SELECT in a UNION
sequence.
sql/sql_union.cc:
Fixed bug #18767.
Changed the condition at which a SELECT is treated as part of a UNION.
The SELECT in
(SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2
now is handled in the same way as the first SELECT in a UNION
sequence.
sql/sql_yacc.yy:
Fixed bug #18767.
Changed the condition at which a SELECT is treated as part of a UNION.
The SELECT in
(SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2
now is handled in the same way as the first SELECT in a UNION
sequence. In the same way is handled the SELECT in
(SELECT ... LIMIT n) ORDER BY order list.
Yet if there is neither ORDER BY nor LIMIT in the single-select
union construct
(SELECT ...) ORDER BY order_list
then it is still handled as simple select with an order clause.
The bug caused wrong result sets for union constructs of the form
(SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2.
For such queries order lists were concatenated and limit clause was
completely neglected.
The bug was in JOIN::join_free which was wrongly determining that
all joins have been already executed and therefore all used tables
can be closed.
mysql-test/r/subselect_innodb.result:
- test results fixed (Bug#12736 "Server crash during a select
mysql-test/t/subselect_innodb.test:
- a test case for Bug#12736 "Server crash during a select": test
that ha_index_or_rnd_end and mysql_unlock_tables are called
for all used tables in proper order.
sql/item_subselect.cc:
- implement subselect_union_engine::is_executed
sql/item_subselect.h:
- implement Item_subselect::is_evaluated. This function is used
to check whether we can clean up a non-correlated join of a subquery
when cleaning up the join of the outer query
sql/sql_lex.h:
- declare st_select_lex::cleanup_all_joins
sql/sql_select.cc:
- remove an argument from JOIN::join_free, it's now not used
- reimplement JOIN::join_free to not unlock tables if there
is a subquery that has not yet been evaluated. Make sure that the
new implementation calls ha_index_or_rnd_end for every table in
the join and inner joins, because all table cursors must be closed
before mysql_unlock_tables.
sql/sql_select.h:
- JOIN::join_free signature changed
sql/sql_union.cc:
- implement a helper method st_select_lex::cleanup_all_joins, which
recursively walks over a tree of joins and calls cleanup() for
each join.
cursor is interpreted latin1 character and Bug#9819 "Cursors: Mysql Server
Crash while fetching from table with 5 million records."
A fix for a possible memory leak when fetching into an SP cursor
in a long loop.
The patch uses a common implementation of cursors in the binary protocol and
in stored procedures and implements materialized cursors.
For implementation details, see comments in sql_cursor.cc
include/my_sys.h:
- declaration for multi_alloc_root
libmysqld/Makefile.am:
- drop protocol_cursor.cc, add sql_cursor.cc (replaces the old
implementation of cursors with a new one)
mysql-test/r/ctype_ujis.result:
- test results fixed (a test case for Bug#6513)
mysql-test/r/sp-big.result:
- test results fixed (a test case for Bug#9819)
mysql-test/t/ctype_ujis.test:
Add a test case for Bug#6513 "Test Suite: Values inserted by using cursor is
interpreted latin1 character"
mysql-test/t/sp-big.test:
Add a restricted test case for Bug#9819 "Cursors: Mysql Server Crash
while fetching from table with 5 million records."
mysys/my_alloc.c:
- an implementation of multi_alloc_root; this is largely a copy-paste
from mulalloc.c, but the function is small and there is no easy way
to reuse the existing C function.
sql/Makefile.am:
- add sql_cursor.h, sql_cursor.cc (a new implementation of stored procedure
cursors) and drop protocol_cursor.cc (the old one)
sql/handler.cc:
- now TABLE object has its mem_root always initialized.
Adjust the implementation handler::ha_open
sql/item_subselect.cc:
- adjust to the changed declaration of st_select_lex_unit::prepare
sql/protocol.h:
- drop Protocol_cursor
sql/sp_head.cc:
- move juggling with Query_arena::free_list and Item::next to
sp_eval_func_item, as this is needed in 3 places already.
sql/sp_head.h:
- declare a no-op implementation for cleanup_stmt in sp_instr_cpush.
This method is needed for non-materializing cursors, which are yet not
used in stored procedures.
- declaration for sp_eval_func_item
sql/sp_rcontext.cc:
- reimplement sp_cursor using the new implementation of server side cursors.
- use sp_eval_func_item to assign values of SP variables from the
row fetched from a cursor. This should fix a possible memory leak in
the old implementation of sp_cursor::fetch
sql/sp_rcontext.h:
- reimplement sp_cursor using the new implementation of server side cursors.
sql/sql_class.cc:
- disable the functionality that closes transient cursors at commit/rollback;
transient cursors are not used in 5.0, instead we use materialized ones.
To be enabled in a later version.
sql/sql_class.h:
- adjust to the rename Cursor -> Server_side_cursor
- additional declarations of select_union used in materialized cursors
sql/sql_derived.cc:
- reuse bits of tmp table code in UNION, derived tables, and materialized
cursors
- cleanup comments
sql/sql_lex.h:
- declarations of auxiliary methods used by materialized cursors
- a cleanup in st_select_lex_unit interface
sql/sql_list.h:
- add an array operator new[] to class Sql_alloc
sql/sql_prepare.cc:
- split the tight coupling of cursors and prepared statements to reuse
the same implementation in stored procedures
- cleanups of error processing in Prepared_statement::{prepare,execute}
sql/sql_select.cc:
- move the implementation of sensitive (non-materializing) cursors to
sql_cursor.cc
- make temporary tables self-contained: the table, its record and fields
are allocated in TABLE::mem_root. This implementation is not clean
and resets thd->mem_root several times because of the way create_tmp_table
works (many additional things are done inside it).
- adjust to the changed declaration of st_select_lex_unit::prepare
sql/sql_select.h:
- move the declaration of sensitive (non-materializing) cursors to
sql_cursor.cc
sql/sql_union.cc:
- move pieces of st_select_unit::prepare to select_union and st_table
methods to be able to reuse code in the implementation of materialized
cursors
sql/sql_view.cc:
- adjust to the changed signature of st_select_lex_unit::prepare
sql/table.cc:
- implement auxiliary st_table methods for use with temporary tables
sql/table.h:
- add declarations for auxiliary methods of st_table used to work with
temporary tables
tests/mysql_client_test.c:
- if cursors are materialized, a parallel update of the table used
in the cursor may go through: update the test.
sql/sql_cursor.cc:
New BitKeeper file ``sql/sql_cursor.cc'' -- implementation of server side
cursors
sql/sql_cursor.h:
New BitKeeper file ``sql/sql_cursor.h'' - declarations for
server side cursors.
cursor is interpreted latin1 character and Bug#9819 "Cursors: Mysql Server
Crash while fetching from table with 5 million records."
A fix for a possible memory leak when fetching into an SP cursor
in a long loop.
The patch uses a common implementation of cursors in the binary protocol and
in stored procedures and implements materialized cursors.
For implementation details, see comments in sql_cursor.cc
- current_arena to stmt_arena: the thread may have more than one
'current' arenas: one for runtime data, and one for the parsed
tree of a statement. Only one of them is active at any moment.
- set_item_arena -> set_query_arena, because Item_arena was renamed to
Query_arena a while ago
- set_n_backup_item_arena -> set_n_backup_active_arena;
the active arena is the arena thd->mem_root and thd->free_list
are currently pointing at.
- restore_backup_item_arena -> restore_active_arena (with the same
rationale)
- change_arena_if_needed -> activate_stmt_arena_if_needed; this
method sets thd->stmt_arena active if it's not done yet.
sql/item.cc:
Rename.
sql/item_cmpfunc.cc:
Rename.
sql/item_func.cc:
Rename.
sql/item_subselect.cc:
Rename.
sql/item_subselect.h:
Remove an unused forward declaration.
sql/item_sum.h:
Remove an unused forward declaration.
sql/mysql_priv.h:
Remove an unused forward declaration.
sql/sp.cc:
Rename.
sql/sp_head.cc:
Rename.
sql/sql_base.cc:
Rename.
sql/sql_class.cc:
Rename.
sql/sql_class.h:
Rename.
sql/sql_lex.cc:
Rename.
sql/sql_parse.cc:
Rename.
sql/sql_prepare.cc:
Rename.
sql/sql_select.cc:
Rename.
sql/sql_show.cc:
Rename.
sql/sql_union.cc:
Rename.
sql/sql_view.cc:
Rename.
sql/table.cc:
Rename.
- current_arena to stmt_arena: the thread may have more than one
'current' arenas: one for runtime data, and one for the parsed
tree of a statement. Only one of them is active at any moment.
- set_item_arena -> set_query_arena, because Item_arena was renamed to
Query_arena a while ago
- set_n_backup_item_arena -> set_n_backup_active_arena;
the active arena is the arena thd->mem_root and thd->free_list
are currently pointing at.
- restore_backup_item_arena -> restore_active_arena (with the same
rationale)
- change_arena_if_needed -> activate_stmt_arena_if_needed; this
method sets thd->stmt_arena active if it's not done yet.
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/ha_berkeley.cc:
Removed not used variable (and options)
sql/ha_berkeley.h:
Removed not used argument
sql/ha_ndbcluster.cc:
Remove compiler warning
sql/init.cc:
Simplify code
sql/item_sum.cc:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/mysql_priv.h:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/mysqld.cc:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_class.h:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_delete.cc:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_derived.cc:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_lex.h:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_parse.cc:
Indentation fixes
sql/sql_select.cc:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_select.h:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_show.cc:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_union.cc:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_update.cc:
Removed duplicate usage of TMP_TABLE_FORCE_MYISAM by making 'options' longlong
sql/sql_yacc.yy:
Changed variable name i to more descriptive name
Removed compiler warning
- Fixed some error condtion when handling dates with 'T'
- Added extra test for bug #11867 (Wrong result with "... WHERE ROW( a, b ) IN ( SELECT DISTINCT a, b WHERE ...)" to show it's not yet fixed
- Safety fixes and cleanups
mysql-test/r/subselect.result:
Added extra test case to test case for bug #11867
(Result shows that current code is not yet right and needs to be fixed)
mysql-test/r/type_datetime.result:
More tests for dates of type CCYYMMDDTHHMMSS
mysql-test/t/subselect.test:
Added extra test case to test case for bug #11867
mysql-test/t/type_datetime.test:
More tests for dates of type CCYYMMDDTHHMMSS
sql-common/my_time.c:
Fixed handling of dates of type CCYYMMDDTHHMMSS
(Old code couldn't handle 2003-0304 or 2003-0003-02)
sql/slave.cc:
Indentation cleanup
sql/sql_parse.cc:
Added test of return value of get_system_var()
sql/sql_select.cc:
Removed unnecessary call to field->table->maybe_null
sql/sql_union.cc:
Indentation fixes
- Fixed some error condtion when handling dates with 'T'
- Added extra test for bug #11867 (Wrong result with "... WHERE ROW( a, b ) IN ( SELECT DISTINCT a, b WHERE ...)" to show it's not yet fixed
- Safety fixes and cleanups
into mysql.com:/home/psergey/mysql-5.0-bug11869-part3
BitKeeper/deleted/.del-not_windows.inc:
Auto merged
mysql-test/r/create.result:
Auto merged
mysql-test/r/query_cache.result:
Auto merged
mysql-test/r/type_datetime.result:
Auto merged
mysql-test/t/query_cache.test:
Auto merged
mysql-test/t/rpl_flush_tables.test:
Auto merged
sql/item_sum.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql-common/my_time.c:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_union.cc:
Auto merged
BitKeeper/deleted/.del-not_windows.inc:
Delete: mysql-test/include/not_windows.inc
mysql-test/r/fulltext_order_by.result:
Auto merged
mysql-test/r/type_datetime.result:
Auto merged
mysql-test/t/fulltext_order_by.test:
Auto merged
mysql-test/t/query_cache.test:
Auto merged
mysql-test/t/rpl_flush_tables.test:
Auto merged
sql-common/my_time.c:
Auto merged
sql/item_timefunc.h:
Auto merged
sql/sql_union.cc:
Auto merged
We're out of bits in st_select_lex->options so make TMP_TABLE_FORCE_MYISAM ==
OPTION_FOUND_COMMENT (the latter is not used by create_tmp_table).
mysql-test/r/create.result:
Updated the test result
mysql-test/r/fulltext_order_by.result:
Drop all tables this test uses
mysql-test/t/fulltext_order_by.test:
Drop all tables this test uses
In init_prepare_fake_select_lex() don't empty ftfunc_list. UNION's ORDER BY clause may
contain MATCH(...), for which fix_index() should be called.
mysql-test/r/fulltext_order_by.result:
BUG#11869 part2 : added another test case
mysql-test/t/fulltext_order_by.test:
BUG#11869 part2 : added another test case
When creating temporary table for UNION, pass TMP_TABLE_FORCE_MYISAM flag to
create_tmp_table if we will be using fulltext function(s) when reading from the
temp. table.
mysql-test/r/fulltext_order_by.result:
Testcase for BUG#11869 (cont'd, eliminating "table type doesn't support FULLTEXT" error)
mysql-test/t/fulltext_order_by.test:
Testcase for BUG#11869 (cont'd, eliminating "table type doesn't support FULLTEXT" error)
sql/mysql_priv.h:
BUG#11869 (cont'd, eliminating "table type doesn't support FULLTEXT" error):
Added TMP_TABLE_FORCE_MYISAM flag
sql/sql_select.cc:
BUG#11869 (cont'd, eliminating "table type doesn't support FULLTEXT" error):
In create_tmp_table(), honor the TMP_TABLE_FORCE_MYISAM flag
When creating temporary table for UNION, pass TMP_TABLE_FORCE_MYISAM flag to
create_tmp_table if we will be using fulltext function(s) when reading from the
temp. table.
Item_type_holder doesn't store information about length and exact type of
original item which results in redefining length to max_length and geometry
type to longtext.
Changed the way derived tables except unions are built. Now they are created
from original field list instead of list of Item_type_holder.
mysql-test/r/subselect.result:
Fixed wrong test case result. bug#11335
mysql-test/r/view_grant.result:
Fixed wrong test case result. bug#11335
mysql-test/r/view.result:
Added test case for bug #11335. Fixed wrong test case result.
mysql-test/t/view.test:
Test case for bug #11335 View redefines TinyInt(1) column definition.
sql/sql_union.cc:
Fix bug #11335 View redefines TinyInt(1) column definition.
Changed the way derived tables except unions are built. Now they are created from original field list instead of list of Item_type_holders.
sql/sql_select.cc:
Fix bug #11335 View redefines TinyInt(1) column definition.
Added special handling of DATE/TIME fields to preserve field's type in tmp field creation.
In create_tmp_field() for Item_field added special handling of case when item have to be able to store NULLs but underlaid field is NOT NULL.
sql/item_sum.cc:
Fix bug #11335 View redefines TinyInt(1) column definition.
Added special handling of DATE/TIME fields to preserve field's type while tmp
field created in Item_sum_hybrid::create_tmp_field().
Item_type_holder doesn't store information about length and exact type of
original item which results in redefining length to max_length and geometry
type to longtext.
Changed the way derived tables except unions are built. Now they are created
from original field list instead of list of Item_type_holder.
into mysql.com:/home/jimw/my/mysql-5.0-clean
VC++Files/sql/mysqld.dsp:
Auto merged
sql/ha_federated.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_union.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/table.cc:
Auto merged
sql/item_strfunc.cc:
SCCS merged
sql/field.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysqld.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_view.cc:
Auto merged
strings/ctype-utf8.c:
Auto merged
- Mostly indentation fixes
- Added missing test
- Ensure that Item_func_case() checks for stack overruns
- Use real_item() instead of (Item_ref*) item
- Fixed wrong error handling
myisam/mi_unique.c:
Improved comments
myisam/myisampack.c:
Updated version number
mysql-test/r/group_by.result:
Added test that was lost during earlier merge
mysql-test/r/information_schema.result:
Safety fix: Drop procedures before used
mysql-test/t/group_by.test:
Added test that was lost during earlier merge
mysql-test/t/information_schema.test:
Safety fix: Drop procedures before used
mysys/hash.c:
Updated comment
sql/field.cc:
false -> FALSE
sql/ha_ndbcluster.cc:
Fix some style issues
- No () around argument to 'case'
- Space before ( in switch and if
- Removed 'goto'
- Added {}
- Added () to make expressions easier to read
- my_snprintf -> strmov
sql/handler.cc:
if( -> if (
sql/item.cc:
Indentation changes
sql/item.h:
false -> FALSE
sql/item_cmpfunc.cc:
Ensure that Item_func_case() check for stack overrun properly
sql/item_cmpfunc.h:
Ensure that Item_func_case() check for stack overrun properly
sql/item_func.cc:
Indentation fixes
Fixed wrong goto label
sql/mysqld.cc:
Remove test for opt_disable_networking as this flag can never be set here
sql/opt_range.cc:
Simplify code
sql/sql_class.h:
Move define out from middle of class definition
sql/sql_parse.cc:
Remove extra empty lines
sql/sql_select.cc:
use real_item() instead of (Item_ref*) item
Modifed function comment to be align with others
Simple optimization
sql/sql_union.cc:
Portability fix:
Don't use 'bool_variable|=...'
sql/sql_view.cc:
Move List_iterator_fast out from loops (rewind is faster than creating a new itearator)
strings/ctype-utf8.c:
if( -> if (
strings/ctype.c:
Remove disabled code
strings/decimal.c:
Indentation fixes
strings/xml.c:
Indentation fixes
include/my_bitmap.h:
new bitmap operation
mysql-test/r/view.result:
added warnings
Correct inserting data check (absence of default value) for view underlying tables (BUG#6443)
mysql-test/t/view.test:
Correct inserting data check (absence of default value) for view underlying tables (BUG#6443)
mysys/my_bitmap.c:
new bitmap operation
sql/field.h:
index of field in table added
sql/item.cc:
Name resolution context added
table list removed from fix_fields() arguments
sql/item.h:
Name resolution context added
table list removed from fix_fields() arguments
sql/item_cmpfunc.cc:
table list removed from fix_fields() arguments
sql/item_cmpfunc.h:
table list removed from fix_fields() arguments
sql/item_func.cc:
table list removed from fix_fields() arguments
sql/item_func.h:
table list removed from fix_fields() arguments
sql/item_row.cc:
table list removed from fix_fields() arguments
sql/item_row.h:
table list removed from fix_fields() arguments
sql/item_strfunc.cc:
fixed server crash on NULL argument
sql/item_strfunc.h:
table list removed from fix_fields() arguments
sql/item_subselect.cc:
table list removed from fix_fields() arguments
sql/item_subselect.h:
table list removed from fix_fields() arguments
sql/item_sum.cc:
table list removed from fix_fields() arguments
sql/item_sum.h:
table list removed from fix_fields() arguments
sql/item_timefunc.cc:
table list removed from fix_fields() arguments
sql/item_timefunc.h:
table list removed from fix_fields() arguments
sql/item_uniq.h:
table list removed from fix_fields() arguments
sql/log_event.cc:
Name resolution context added
sql/log_event.h:
Name resolution context added
sql/mysql_priv.h:
Name resolution context added
sql/set_var.cc:
table list removed from fix_fields() arguments
sql/share/errmsg.txt:
new error message
sql/sp.cc:
Name resolution context added
sql/sp_head.cc:
table list removed from fix_fields() arguments
sql/sp_head.h:
Name resolution context added
sql/sql_base.cc:
table list removed from fix_fields() arguments
Name resolution context added
sql/sql_class.cc:
renamed variable
sql/sql_delete.cc:
Name resolution context added
sql/sql_derived.cc:
Name resolution context added
sql/sql_do.cc:
table list removed from fix_fields() arguments
sql/sql_handler.cc:
Name resolution context added
sql/sql_help.cc:
Name resolution context added
sql/sql_insert.cc:
Name resolution context added
table list removed from fix_fields() arguments
sql/sql_lex.cc:
Name resolution context added
sql/sql_lex.h:
removed resolve mode (information stored into name resolution context)
sql/sql_load.cc:
table list removed from fix_fields() arguments
sql/sql_olap.cc:
Name resolution context added
sql/sql_parse.cc:
Name resolution context added
sql/sql_prepare.cc:
table list removed from fix_fields() arguments
sql/sql_select.cc:
table list removed from fix_fields() arguments
sql/sql_show.cc:
Name resolution context added
sql/sql_trigger.cc:
table list removed from fix_fields() arguments
sql/sql_udf.h:
table list removed from fix_fields() arguments
sql/sql_union.cc:
Name resolution context added
sql/sql_update.cc:
Name resolution context added
sql/sql_view.cc:
Name resolution context added
sql/sql_view.h:
table list removed from fix_fields() arguments
sql/sql_yacc.yy:
Name resolution context added
sql/table.cc:
Name resolution context added
merged view processing moved
sql/table.h:
merged view processing moved
The reason it happened was that both, JOIN::cleanup() and JOIN::join_free(),
went over all nested joins and called cleanup/join_free for them.
For that:
- split recursive and non-recursive parts of JOIN::cleanup() and
JOIN::join_free()
- rename JOIN::cleanup to JOIN::destroy, as it actually destroys its
argument
- move the recursive part of JOIN::cleanup to st_select_lex::cleanup
- move the non-recursive part of JOIN::join_free to the introduced
method JOIN::cleanup().
sql/sql_lex.h:
Add st_select_lex::cleanup, a counterpart of st_select_lex_unit::cleanup()
sql/sql_select.cc:
- remove two unused arguments from return_zero_rows
- split JOIN::join_free and JOIN::cleanup to recursive and non-recursive
parts.
- note, the assert in JOIN::join_free _does_ fail in having.test.
We have two options: a) propagate `full' flag to the nested joins.
We did it before, and this patch didn't change it. If so, we
can end up cleaning up an uncacheable JOIN (that is, the join that
we might need again).
b) evaluate own 'full' flag on every level. In this case, we might
end up with tables freed in mysql_unlock_read_tables, but not
cleaned up properly, and this may be even worse. The test suite
passes with both approaches, but not with the assert.
sql/sql_select.h:
- declarations for JOIN::cleanup() and JOIN::join_free()
sql/sql_union.cc:
Add st_select_lex::cleanup, a counterpart of st_select_lex_unit::cleanup():
move the recursive part of JOIN::cleanup to it.
The reason it happened was that both, JOIN::cleanup() and JOIN::join_free(),
went over all nested joins and called cleanup/join_free for them.
For that:
- split recursive and non-recursive parts of JOIN::cleanup() and
JOIN::join_free()
- rename JOIN::cleanup to JOIN::destroy, as it actually destroys its
argument
- move the recursive part of JOIN::cleanup to st_select_lex::cleanup
- move the non-recursive part of JOIN::join_free to the introduced
method JOIN::cleanup().
VC++Files/sql/mysqld.dsp:
Link debug server against debug yassl
sql/examples/ha_archive.cc:
Fix type for variables used to store number of rows
Add cast when reading current position
sql/examples/ha_archive.h:
Fix variables used to store rows to ha_rows
sql/ha_federated.cc:
Remove unused variables, fix type of variable used to store query id
sql/item_strfunc.cc:
Remove unused variables
sql/sql_acl.cc:
Remove unused variables
sql/sql_lex.cc:
Add casts to fix type used for counting number of rows
sql/sql_lex.h:
Fix size of options to be ulong again
sql/sql_insert.cc:
Fix type of query id value
sql/sql_union.cc:
Cast value for number of rows to ha_rows
sql/sql_yacc.yy:
Remove unused variable
sql/table.cc:
Add casts for handling key_part lengths
error for LIMIT placeholder".
The patch adds grammar support for LIMIT ?, ? and changes the
type of ST_SELECT_LEX::select_limit,offset_limit from ha_rows to Item*,
so that it can point to Item_param.
mysql-test/include/ps_modify.inc:
Fix existing tests: now LIMIT can contain placeholders.
mysql-test/include/ps_query.inc:
Fix existing tests: now LIMIT can contain placeholders.
mysql-test/r/ps.result:
Add basic test coverage for LIMIT ?, ? and fix test results.
mysql-test/r/ps_2myisam.result:
Fix test results: now LIMIT can contain placeholders.
mysql-test/r/ps_3innodb.result:
Fix test results: now LIMIT can contain placeholders.
mysql-test/r/ps_4heap.result:
Fix test results: now LIMIT can contain placeholders.
mysql-test/r/ps_5merge.result:
Fix test results: now LIMIT can contain placeholders.
mysql-test/r/ps_6bdb.result:
Fix test results: now LIMIT can contain placeholders.
mysql-test/r/ps_7ndb.result:
Fix test results: now LIMIT can contain placeholders.
mysql-test/t/ps.test:
Add basic test coverage for LIMIT ?, ?.
sql/item.h:
Add a short-cut for (ulonglong) val_int() to Item.
Add a constructor to Item_int() that accepts ulonglong.
Simplify Item_uint constructor by using the c-tor above.
sql/item_subselect.cc:
Now select_limit has type Item *.
We can safely create an Item in Item_exists_subselect::fix_length_and_dec():
it will be allocated in runtime memory root and freed in the end of
execution.
sql/sp_head.cc:
Add a special initalization state for stored procedures to
be able to easily distinguish the first execution of a stored procedure
from prepared statement prepare.
sql/sql_class.h:
Introduce new state 'INITIALIZED_FOR_SP' to be able to easily distinguish
the first execution of a stored procedure from prepared statement prepare.
sql/sql_derived.cc:
- use unit->set_limit() to set unit->select_limit_cnt, offset_limit_cnt
evreryplace. Add a warning about use of set_limit in
mysql_derived_filling.
sql/sql_error.cc:
- use unit->set_limit() to set unit->select_limit_cnt, offset_limit_cnt
evreryplace.
- this change is also aware of bug#11095 "show warnings limit 0 returns
all rows instead of zero rows", so the one who merges the bugfix from
4.1 can use local version of sql_error.cc.
sql/sql_handler.cc:
- use unit->set_limit() to initalize
unit->select_limit_cnt,offset_limit_cnt everyplace.
sql/sql_lex.cc:
Now ST_SELECT_LEX::select_limit, offset_limit have type Item *
sql/sql_lex.h:
Now ST_SELECT_LEX::select_limit, offset_limit have type Item *
sql/sql_parse.cc:
- use unit->set_limit() to initalize
unit->select_limit_cnt,offset_limit_cnt everyplace.
- we can create an Item_int to set global limit of a statement:
it will be created in the runtime mem root and freed in the end of
execution.
sql/sql_repl.cc:
Use unit->set_limit to initialize limits.
sql/sql_select.cc:
- select_limit is now Item* so the proper way to check for default value
is to compare it with NULL.
sql/sql_union.cc:
Evaluate offset_limit_cnt using the new type of ST_SELECT_LEX::offset_limit
sql/sql_view.cc:
Now ST_SELECT_LEX::select_limit, offset_limit have type Item *
sql/sql_yacc.yy:
Add grammar support for LIMIT ?, ? clause.
error for LIMIT placeholder".
The patch adds grammar support for LIMIT ?, ? and changes the
type of ST_SELECT_LEX::select_limit,offset_limit from ha_rows to Item*,
so that it can point to Item_param.
