results." a.k.a. "Proper cleanup of subqueries is missing for SET and DO
statements". (Version #2 with after-review fixes).
To perform proper cleanup for statements that can contain subqueries
but don't have main select we must call free_undelaid_joins().
mysql-test/r/subselect.result:
Added test for bug #6462 "Same request on same data returns different
results." a.k.a. "Proper cleanup of subqueries is missing for SET and DO
statements".
mysql-test/t/subselect.test:
Added test for bug #6462 "Same request on same data returns different
results." a.k.a. "Proper cleanup of subqueries is missing for SET and DO
statements".
sql/set_var.cc:
Added missing cleanup of joins used in subqueries to SET statement.
sql/sql_do.cc:
Added missing cleanup of joins used in subqueries to DO statement.
improved mechanisn of detection posibility to be NULL for single row queries
switched off substitution optimisation for single row subqueries in PS due to problem in resolving substituted expressions
(changes to make subselects test working with PS protocol)
mysql-test/r/subselect.result:
removed incorrect error message about aggregate functions
improved mechanisn of detection posibility to be NULL for single row queries
mysql-test/t/subselect.test:
removed incorrect error message about aggregate functions
sql/item_subselect.cc:
removed incorrect error message about aggregate functions
switched off substitution optimisation for single row subqueries in PS due to problem in resolving substituted expressions
improved mechanisn of detection posibility to be NULL for single row queries
sql/item_subselect.h:
new method to help in NULL ability detection
single row subquery always can return NULL (no rows found) (BUG#5590)
mysql-test/r/subselect.result:
maybe_null flag returning by subquwery for temporary table creation
mysql-test/t/subselect.test:
maybe_null flag returning by subquwery for temporary table creation
sql/item.cc:
storing maybe_null in type holder
sql/item_subselect.cc:
single row subquery always can return NULL (no rows found)
sql/sql_derived.cc:
fixed error handling if creating derived table failed
allowed parsing of table fields inside aggregate functions
added new tests of fields resolving in grouping
mysql-test/r/func_gconcat.result:
allowed parsing of table fields inside aggregate functions
mysql-test/r/subselect.result:
added new tests of fields resolving in grouping
mysql-test/t/func_gconcat.test:
allowed parsing of table fields inside aggregate functions
mysql-test/t/subselect.test:
added new tests of fields resolving in grouping
sql/item_subselect.cc:
allowed parsing of table fields inside aggregate functions
sql/item_subselect.cc:
Auto merged
sql/item_subselect.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
We have next problem here:
active_index is wrong in the subselect's handler on the second val_int() call.
Optimizer sees that we can use index-read for that kind of condition,
and matching_cond() (sql/opt_sum.cc) doesn't. I suspect, proper solution is
to add appropriate code to the matching_cond() but now just added
missed initialization.
mysql-test/r/subselect.result:
Appropriate test result
mysql-test/t/subselect.test:
Test case added
sql/records.cc:
index's initialization added
mysql-test/r/func_gconcat.result:
fix of test queries
mysql-test/r/subselect.result:
resolving fields of grouped outer SELECT
mysql-test/t/func_gconcat.test:
fix of test queries
mysql-test/t/subselect.test:
resolving fields of grouped outer SELECT
sql/item.cc:
skip resolving field in table list if table list is not accessable due to groupping
layout fixed
sql/item_subselect.cc:
detection of place of subquery
sql/item_subselect.h:
detection of place of subquery
sql/mysql_priv.h:
enum_parsing_place made global type
sql/sql_lex.cc:
enum_parsing_place made global type
sql/sql_lex.h:
enum_parsing_place made global type
sql/sql_yacc.yy:
enum_parsing_place made global type
mysql-test/r/subselect.result:
Optimized IN with compound index test
mysql-test/t/subselect.test:
Optimized IN with compound index test
sql/item_subselect.cc:
in case of compound index fill all parts
restoring current senect pointer before PS rexecution (backport from 5.0)
removed spaces at lines ends
mysql-test/r/subselect.result:
Aggregate function comparation with ALL/ANY/SOME subselect test
mysql-test/t/subselect.test:
Aggregate function comparation with ALL/ANY/SOME subselect test
sql/item_subselect.cc:
removed spaces at lines ends
aggregate functions check during substitution made only for single row subselects
sql/item_subselect.h:
removed spaces at lines ends
sql/sql_prepare.cc:
restoring current senect pointer before PS rexecution (backport from 5.0)
Fixed problem with NULL and derived tables (Bug #4097)
Cleanup of new pushed code
BitKeeper/etc/ignore:
added mysql-test/ndb/ndbcluster
client/mysqltest.c:
simple cleanup
innobase/os/os0file.c:
fix for netware
libmysql/libmysql.c:
Fixed some byte order bugs with prepared statements on machines with
high-byte-first. (Bug #4173)
myisam/ft_boolean_search.c:
Comment cleanup
myisam/mi_check.c:
Removed not needed check (check is done in check_index())
myisam/mi_unique.c:
crc must be of type ha_checksum.
myisam/myisamchk.c:
Portability fix.
mysql-test/mysql-test-run.sh:
Simple cleanup
mysql-test/r/subselect.result:
Test problem with NULL and derived tables (Bug #4097)
mysql-test/t/subselect.test:
Test problem with NULL and derived tables (Bug #4097)
sql/mysqld.cc:
Remove not used defines
sql/sql_select.cc:
Fixed problem with NULL and derived tables (Bug #4097)
Indentation fixes
sql/sql_string.cc:
Code cleanup
sql/sql_yacc.yy:
Allow one to use DROP PREPARE ...
mysql-test/r/subselect.result:
outer fields resolving in INSERT/REPLACE and CRETE with SELECT
mysql-test/t/subselect.test:
outer fields resolving in INSERT/REPLACE and CRETE with SELECT
sql/sql_parse.cc:
fixed field resolving mode fo INSERT/REPLACE and CRETE with SELECT
sql/sql_prepare.cc:
fixed field resolving mode fo INSERT/REPLACE and CRETE with SELECT
close table before opening in optimize
mysql-test/r/subselect.result:
test of EXISTS(SELECT * ...)
mysql-test/t/subselect.test:
test of EXISTS(SELECT * ...)
sql/sql_base.cc:
EXISTS(SELECT * ...)
sql/sql_table.cc:
close table before opening one
removed influence of some tests on other tests
mysql-test/r/multi_update.result:
removed influence on other tests
mysql-test/r/subselect.result:
if exists should not be used inside test
mysql-test/t/multi_update.test:
removed influence on other tests
mysql-test/t/subselect.test:
if exists should not be used inside test
mysql-test/t/system_mysql_db_fix.test:
removed influence on other tests
into sanja.is.com.ua:/home/bell/mysql/bk/work-explain-4.1
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/subselect.test:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_union.cc:
Auto merged
mysql-test/r/subselect.result:
ALL/ANY test
mysql-test/t/subselect.test:
ALL/ANY test
sql/item_subselect.cc:
keep old engine & JOIN if we changed subquery Item, which allow avoid second all SELECT items fix_fields call with pervios clean up (because of second setup_tables which remove table->key_use and maybe something else)
keep list when we change Item in SELECT list
processing inserted max/min function (now JOIN::prepare will be called only once)
methods of changing item for subselect engines
sql/item_subselect.h:
change item & results procedure
sql/item_sum.cc:
Item_sum_hybrid::clear moved to .cc file (to keep .h clean and to make inserving/removing debug info easy)
sql/item_sum.h:
Item_sum_hybrid::clear moved to .cc file (to keep .h clean and to make inserving/removing debug info easy)
sql/sql_lex.cc:
note about new method
sql/sql_lex.h:
method for changing result of UNION JOINs
sql/sql_select.cc:
method for changing result in JOIN
sql/sql_select.h:
method for changing result in JOIN
sql/sql_union.cc:
method for changing result in JOIN
EXPLAIN of hidden SELECT of UNION
mysql-test/r/derived.result:
explain of hidden select
mysql-test/r/subselect.result:
explain of hidden select
mysql-test/r/union.result:
explain of hidden select
correct error messages on explain
mysql-test/t/subselect.test:
show eliminated costants in WHERE clause
mysql-test/t/union.test:
correct error messages on EXPLAIN with union
sql/item.cc:
fixed name constructing for global ORDER BY items
sql/sql_class.h:
select ID can be negative (for hidden SELECTs)
removed unused field
sql/sql_lex.cc:
new flag of UNION EXPLAIN
sql/sql_lex.h:
new flag of UNION EXPLAIN
select ID can be negative (for hidden SELECTs)
sql/sql_select.cc:
EXPLAIN UNION using same routing which used for execution
explain for hidden SELECT of UNION
sql/sql_union.cc:
EXPLAIN UNION using same routing which used for execution
fixed LIMIT 0 for zero rows optimisation
mysql-test/r/subselect.result:
test case for bugreport
mysql-test/t/subselect.test:
test case for bugreport
sql/sql_select.cc:
cleanup sum function on reinit
take in account LIMIT if zero result optimisation case
do not forgot sum function in zero result case for subqueries
mysql-test/r/subselect.result:
appropriate test result
mysql-test/t/subselect.test:
test case
sql/item.cc:
we can get NULL here if the field isn't unique
sql/item.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/subselect.result:
resolving conflicts
mysql-test/t/subselect.test:
resolving conflicts
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/subselect.test:
Auto merged
sql/item.cc:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_sum.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
mysql-test/r/subselect.result:
test suite for BUG#2838
mysql-test/t/subselect.test:
test suite for BUG#2838
sql/item.cc:
revision of fix_fields() calls
removed unnecessary variabl, and used correct last parameter of fix_fields()
sql/item_cmpfunc.cc:
revision of fix_fields() calls (BUG#2838)
sql/item_func.cc:
revision of fix_fields() calls
sql/item_row.cc:
changed for efficience (and to be similar for Item_func::fix_fields)
sql/item_subselect.cc:
fixed last arguments for fix_fields call
sql/item_sum.cc:
layout fixed
revision of fix_fields() calls
sql/log_event.cc:
revision of fix_fields() calls
sql/set_var.cc:
revision of fix_fields() calls
sql/sql_base.cc:
revision of fix_fields() calls
sql/sql_class.cc:
revision of fix_fields() calls
sql/sql_handler.cc:
revision of fix_fields() calls
client/mysqldump.c:
Auto merged
configure.in:
Auto merged
include/m_ctype.h:
Auto merged
include/m_string.h:
Auto merged
include/my_global.h:
Auto merged
mysql-test/r/ctype_utf8.result:
Auto merged
mysql-test/r/fulltext.result:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/fulltext.test:
Auto merged
mysql-test/t/grant.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
mysql-test/t/union.test:
Auto merged
sql/field.cc:
Auto merged
sql/field.h:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/share/english/errmsg.txt:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_string.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
strings/ctype-mb.c:
Auto merged
strings/ctype-simple.c:
Auto merged
mysql-test/r/warnings.result:
Fix error numbers after merge
sql/share/czech/errmsg.txt:
Add missing ',' and fix typo
sql/share/danish/errmsg.txt:
Add missing ',' and fix typo
sql/share/dutch/errmsg.txt:
Add missing ',' and fix typo
sql/share/estonian/errmsg.txt:
Add missing ',' and fix typo
sql/share/french/errmsg.txt:
Add missing ',' and fix typo
sql/share/german/errmsg.txt:
Add missing ',' and fix typo
sql/share/greek/errmsg.txt:
Add missing ',' and fix typo
sql/share/hungarian/errmsg.txt:
Add missing ',' and fix typo
sql/share/italian/errmsg.txt:
Add missing ',' and fix typo
sql/share/japanese/errmsg.txt:
Add missing ',' and fix typo
sql/share/korean/errmsg.txt:
Add missing ',' and fix typo
sql/share/norwegian-ny/errmsg.txt:
Add missing ',' and fix typo
sql/share/norwegian/errmsg.txt:
Add missing ',' and fix typo
sql/share/polish/errmsg.txt:
Add missing ',' and fix typo
sql/share/portuguese/errmsg.txt:
Add missing ',' and fix typo
sql/share/romanian/errmsg.txt:
Add missing ',' and fix typo
sql/share/russian/errmsg.txt:
Add missing ',' and fix typo
sql/share/slovak/errmsg.txt:
Add missing ',' and fix typo
sql/share/spanish/errmsg.txt:
Add missing ',' and fix typo
sql/share/swedish/errmsg.txt:
Add missing ',' and fix typo
sql/share/ukrainian/errmsg.txt:
Add missing ',' and fix typo
Added more DBUG statements
Ensure that we are comparing end space with BINARY strings
Use 'any_db' instead of '' to mean any database. (For HANDLER command)
Only strip ' ' when comparing CHAR, not other space-like characters (like \t)
BitKeeper/deleted/.del-ctype_tis620.result-old~3578ceb0b8284685:
Delete: mysql-test/r/ctype_tis620.result-old
BitKeeper/deleted/.del-ctype_tis620.test-old~ffb1bbd2935d1aba:
Delete: mysql-test/t/ctype_tis620.test-old
client/mysqlbinlog.cc:
Added DBUG statements
Added call of my_end() to free all used memory on exit
heap/hp_info.c:
After merge fixes
heap/hp_open.c:
After merge fixes
include/heap.h:
After merge fixes
include/m_ctype.h:
Use pchar instead of 'int' for character parameters.
Added 'my_binary_compare()'
include/m_string.h:
Fixed wrong define
innobase/ibuf/ibuf0ibuf.c:
After merge fixes
innobase/srv/srv0start.c:
After merge fixes
mysql-test/r/alter_table.result:
Fixed results after merge
mysql-test/r/auto_increment.result:
Fixed results after merge
mysql-test/r/bdb.result:
Fixed results after merge
mysql-test/r/binary.result:
Fixed results after merge
mysql-test/r/create.result:
Fixed results after merge
mysql-test/r/ctype_mb.result:
Fixed results after merge
mysql-test/r/ctype_tis620.result:
Fixed results after merge
mysql-test/r/ctype_utf8.result:
Fixed results after merge
mysql-test/r/delete.result:
Fixed results after merge
mysql-test/r/func_compress.result:
Fixed results after merge
mysql-test/r/func_gconcat.result:
Fixed results after merge
mysql-test/r/func_group.result:
Fixed results after merge
mysql-test/r/func_str.result:
Fixed results after merge
mysql-test/r/innodb.result:
Fixed results after merge
mysql-test/r/insert.result:
Fixed results after merge
mysql-test/r/insert_select.result:
Fixed results after merge
mysql-test/r/key.result:
Fixed results after merge
mysql-test/r/loaddata.result:
Fixed results after merge
mysql-test/r/lock.result:
Fixed results after merge
mysql-test/r/myisam.result:
Fixed results after merge
mysql-test/r/null.result:
Fixed results after merge
mysql-test/r/null_key.result:
Fixed results after merge
mysql-test/r/order_by.result:
Fixed results after merge
mysql-test/r/query_cache.result:
Fixed results after merge
mysql-test/r/range.result:
Fixed results after merge
mysql-test/r/rpl_multi_delete.result:
Fixed results after merge
mysql-test/r/rpl_until.result:
Fixed results after merge
mysql-test/r/subselect.result:
Fixed results after merge
mysql-test/r/subselect_innodb.result:
Fixed results after merge
mysql-test/r/type_blob.result:
Fixed results after merge
mysql-test/r/type_datetime.result:
Fixed results after merge
mysql-test/r/type_decimal.result:
Fixed results after merge
mysql-test/r/type_enum.result:
Fixed results after merge
mysql-test/r/type_float.result:
Fixed results after merge
mysql-test/r/type_ranges.result:
Fixed results after merge
mysql-test/r/type_time.result:
Fixed results after merge
mysql-test/r/type_timestamp.result:
Fixed results after merge
mysql-test/r/type_uint.result:
Fixed results after merge
mysql-test/r/type_year.result:
Fixed results after merge
mysql-test/r/variables.result:
Fixed results after merge
mysql-test/r/warnings.result:
Fixed results after merge
mysql-test/t/case.test:
Fixed shifted error messages
mysql-test/t/create.test:
Fixed shifted error messages
mysql-test/t/ctype_collate.test:
Fixed shifted error messages
mysql-test/t/ctype_tis620.test:
Merge with 4.0 ctype_tis620 test
mysql-test/t/delete.test:
Fixed shifted error messages
mysql-test/t/derived.test:
Fixed shifted error messages
mysql-test/t/fulltext.test:
Fixed shifted error messages
mysql-test/t/func_in.test:
Fixed shifted error messages
mysql-test/t/func_str.test:
Fixed shifted error messages
mysql-test/t/func_test.test:
Fixed shifted error messages
mysql-test/t/grant.test:
Fixed shifted error messages
mysql-test/t/innodb.test:
Change to 4.1 syntax
mysql-test/t/key_cache.test:
Fixed shifted error messages
mysql-test/t/myisam.test:
New test of blob and end space
mysql-test/t/row.test:
Fixed shifted error messages
mysql-test/t/rpl_until.test:
Fixed shifted error messages
mysql-test/t/subselect.test:
Fixed shifted error messages
mysql-test/t/subselect_innodb.test:
Fix test to take into account foreign key constraints
mysql-test/t/union.test:
Fixed shifted error messages
mysql-test/t/user_var.test:
Fixed shifted error messages
mysql-test/t/variables.test:
Fixed shifted error messages
mysys/my_handler.c:
Merge with 4.0 code
sql/ha_heap.cc:
After merge fixes
sql/handler.cc:
After merge fixes
sql/item.cc:
After merge fixes
sql/item_cmpfunc.cc:
Ensure that we are comparing end space with BINARY strings
sql/item_cmpfunc.h:
Ensure that we are comparing end space with BINARY strings
sql/log_event.cc:
More DBUG statements
Ensure that we use all options to LOAD DATA in replication
sql/opt_range.cc:
After merge fixes
sql/sql_db.cc:
After merge fixes
sql/sql_handler.cc:
After merge fixes
Use 'any_db' instead of '' to mean 'no database comparison'
sql/sql_parse.cc:
After merge fixes
sql/sql_select.cc:
After merge fixes
Added function comment for setup_group()
sql/sql_string.cc:
Added stringcmp() for binary comparison.
Added function comments for sortcmp() and stringcmp()
sql/sql_string.h:
Added stringcmp()
sql/sql_table.cc:
After merge fixes
sql/sql_update.cc:
After merge fixes
sql/sql_yacc.yy:
Use 'any_db' instead of '' to mean any database. Using "" causes a 'wrong db name' error.
strings/ctype-big5.c:
Strip only end space, not other space characters.
strings/ctype-bin.c:
Removed some not needed functions.
Added function comments
Don't remove end space in comparisons
Change my_wildcmp_bin() to be 'identical' with other similar code
strings/ctype-czech.c:
Strip only end space, not other space characters.
strings/ctype-gbk.c:
Strip only end space, not other space characters.
strings/ctype-latin1.c:
Strip only end space, not other space characters.
strings/ctype-mb.c:
Strip only end space, not other space characters.
strings/ctype-simple.c:
Strip only end space, not other space characters.
strings/ctype-sjis.c:
Strip only end space, not other space characters.
strings/ctype-tis620.c:
Added usage of my_instr_simple. This needs to be cleaned up!
strings/ctype-utf8.c:
Strip only end space, not other space characters.
strings/ctype-win1250ch.c:
Strip only end space, not other space characters.
Fixed indentation
strings/strto.c:
Code cleanup
into sanja.is.com.ua:/home/bell/mysql/bk/work-limit-4.1
mysql-test/r/subselect.result:
Auto merged
mysql-test/t/subselect.test:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/sql_lex.cc:
Auto merged
Fixed output from mysqlbinlog when using --skip-comments
Fixed warnings from valgrind
Fixed ref_length when used with HEAP tables
More efficent need_conversion()
Fixed error handling in UPDATE with not updateable tables
Fixed bug in null handling in CAST to signed/unsigned
client/client_priv.h:
cleanup & added OPT_COMPACT
client/mysqldump.c:
Added option --compact to get a compact readable dump.
Ensure that SET CHARACTER_SET_CLIENT is not done if we have not remembered the old character set
Print optimization comments even if --skip-comments are given as these are not true comments. (Before these where only printed at end, which was a bug)
mysql-test/r/cast.result:
More cast tests
mysql-test/r/derived.result:
Removed warnings
mysql-test/r/mysqldump.result:
Update results after fixing mysqlbinlog
mysql-test/r/query_cache.result:
Make test usable with --extern
more tests
mysql-test/r/rpl_until.result:
Make test repeatable under valgrind
mysql-test/r/sql_mode.result:
Fix test result
mysql-test/r/subselect.result:
Make test smaller. Update wrong results
mysql-test/t/cast.test:
More cast tests
mysql-test/t/derived.test:
Removed warnings
mysql-test/t/query_cache.test:
Make test usable with --extern
more tests
mysql-test/t/rpl_until.test:
fix for valgrind. Becasue of unknown reason one got 'Slave_SQL_Running=yes' in this setup
mysql-test/t/subselect.test:
Make test case smaller
sql/field.cc:
Updated need_conversion() to use new arguments
sql/ha_heap.cc:
Moved initialization of ref_length to right place. This fixed problem that we had a ref_length of 8 for heap tables, which was not efficent.
sql/item_func.cc:
Cleanup
sql/item_func.h:
Fixed bug in null_handling for cast to signed/unsigned
sql/item_strfunc.cc:
Optimized/cleaned up Item_func_conv_charset3
sql/item_sum.cc:
Cleanup.
Ensure that some flag variables are cleared in cleanup()
sql/item_sum.h:
Fixed references to uninitialized memory
sql/opt_range.cc:
Fixed spelling error
sql/sql_class.cc:
Fixed wrong return code, which could case protocol problems
sql/sql_class.h:
After merge fix
sql/sql_prepare.cc:
Added comments
sql/sql_show.cc:
Cleanup
sql/sql_string.cc:
Optimzed usage of need_conversion().
- Removed not used argument
- Save diff lenght in 'offset' to not have to recalculate length several times.
Cleaned up comment
Optimized copy_aligned() based on the knowledge that it's only called when you have wrong data
sql/sql_string.h:
Updated need_conversion() and copy_aligned() to use new arguments
sql/sql_update.cc:
Fixed error handling with non-updateable tables
sql/sql_yacc.yy:
Ensure that lex->lock_options are set correctly (to get rid of warnings from valgrind)
Ensure that cast_type sets lex->charset and lex->length. Without these CONVERT() didn't work properly
mysql-test/r/subselect.result:
test of execution plan of subqueries with static tables and rand()
mysql-test/t/subselect.test:
test of execution plan of subqueries with static tables and rand()
sql/item_func.cc:
use normal Item_func mechanism to report used tables
sql/item_func.h:
use normal Item_func mechanism to report used tables
sql/sql_select.cc:
correct processing of rand() in subqueries with static tables
mysql-test/r/subselect.result:
test of global limit and subqueries
mysql-test/t/subselect.test:
test of global limit and subqueries
sql/sql_lex.cc:
correct detection of non-default limits
sql/sql_parse.cc:
correct assignment of default limit
sql/sql_yacc.yy:
correct assignment of default limit
(BUG#2393)
mysql-test/r/subselect.result:
BUG#2393 test suite
test ref replaced ref_of_null joining
mysql-test/t/subselect.test:
BUG#2393 test suite
test ref replaced ref_of_null joining
sql/item_subselect.cc:
avoid null check on fields where NULL is impossible
sql/sql_select.cc:
convert JT_REF_OR_NULL to JT_REF in case of impossible NULL and protect buffer of rewriting through join_tab->null_ref_key
The problem was that memory was free'd, but it was referenced
later. This free was unneccessary anyway, because join_free() /
JOIN::cleanup takes care of this later on.
Added test case into t/subselect.test for it.
Regards,
Jani
mysql-test/r/subselect.result:
Added a test case for Bug#2479.
mysql-test/t/subselect.test:
Added a test case for Bug#2479.
sql/sql_select.cc:
Fixed Bug#2479, "dependant subquery with limit crash".
The problem was that memory was free'd, but it was referenced
later. This free was unneccessary anyway, because join_free() /
JOIN::cleanup takes care of this later on.
