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merging from 5.1 rep to a local branch

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This commit is contained in:
Andrei Elkin 2010-02-26 21:07:26 +02:00
commit 7fcd6c5989
13 changed files with 57 additions and 17 deletions
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2
include/my_sys.h
View file

@ -950,7 +950,7 @@ extern my_bool resolve_charset(const char *cs_name,
extern my_bool resolve_collation(const char *cl_name,
CHARSET_INFO *default_cl,
CHARSET_INFO **cl);
extern void free_charsets(void);
extern char *get_charsets_dir(char *buf);
extern my_bool my_charset_same(CHARSET_INFO *cs1, CHARSET_INFO *cs2);
extern my_bool init_compiled_charsets(myf flags);

1
libmysql/libmysql.c
View file

@ -211,6 +211,7 @@ void STDCALL mysql_server_end()
}
else
{
free_charsets();
mysql_thread_end();
}

15
mysql-test/r/explain.result
View file

@ -210,4 +210,19 @@ Error 1140 Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP colum
Note 1003 select 1 AS `1` from `test`.`t1` where <not>(<exists>(...))
SET SESSION sql_mode=@old_sql_mode;
DROP TABLE t1;
#
# Bug#47669: Query showed by EXPLAIN EXTENDED gives different result from original query
#
CREATE TABLE t1 (c int);
INSERT INTO t1 VALUES (NULL);
CREATE TABLE t2 (d int);
INSERT INTO t2 VALUES (NULL), (0);
EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = c) FROM t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1
Note 1003 select (select 1 AS `1` from `test`.`t2` where (`test`.`t2`.`d` = NULL)) AS `(SELECT 1 FROM t2 WHERE d = c)` from `test`.`t1`
DROP TABLE t1, t2;
End of 5.1 tests.

4
mysql-test/r/func_str.result
View file

@ -1307,12 +1307,12 @@ explain extended select encode(f1,'zxcv') as 'enc' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select encode('','zxcv') AS `enc` from `test`.`t1`
Note 1003 select encode(NULL,'zxcv') AS `enc` from `test`.`t1`
explain extended select decode(f1,'zxcv') as 'enc' from t1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select decode('','zxcv') AS `enc` from `test`.`t1`
Note 1003 select decode(NULL,'zxcv') AS `enc` from `test`.`t1`
drop table t1;
create table t1 (a bigint not null)engine=myisam;
insert into t1 set a = 1024*1024*1024*4;

2
mysql-test/r/having.result
View file

@ -12,7 +12,7 @@ explain extended select count(a) as b from t1 where a=0 having b >=0;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
Note 1003 select count('0') AS `b` from `test`.`t1` where 0 having (`b` >= 0)
Note 1003 select count(NULL) AS `b` from `test`.`t1` where 0 having (`b` >= 0)
drop table t1;
CREATE TABLE t1 (
raw_id int(10) NOT NULL default '0',

10
mysql-test/r/select.result
View file

@ -4050,10 +4050,10 @@ join_0.c1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
Note 1003 select '0' AS `c1` from `test`.`t1` `join_0` join `test`.`t1` `join_1` join `test`.`t1` `join_2` join `test`.`t1` `join_3` join `test`.`t1` `join_4` join `test`.`t1` `join_5` join `test`.`t1` `join_6` join `test`.`t1` `join_7` where 0 group by '0','0','0','0','0'
Note 1003 select NULL AS `c1` from `test`.`t1` `join_0` join `test`.`t1` `join_1` join `test`.`t1` `join_2` join `test`.`t1` `join_3` join `test`.`t1` `join_4` join `test`.`t1` `join_5` join `test`.`t1` `join_6` join `test`.`t1` `join_7` where 0 group by NULL,NULL,NULL,NULL,NULL
SHOW WARNINGS;
Level Code Message
Note 1003 select '0' AS `c1` from `test`.`t1` `join_0` join `test`.`t1` `join_1` join `test`.`t1` `join_2` join `test`.`t1` `join_3` join `test`.`t1` `join_4` join `test`.`t1` `join_5` join `test`.`t1` `join_6` join `test`.`t1` `join_7` where 0 group by '0','0','0','0','0'
Note 1003 select NULL AS `c1` from `test`.`t1` `join_0` join `test`.`t1` `join_1` join `test`.`t1` `join_2` join `test`.`t1` `join_3` join `test`.`t1` `join_4` join `test`.`t1` `join_5` join `test`.`t1` `join_6` join `test`.`t1` `join_7` where 0 group by NULL,NULL,NULL,NULL,NULL
DROP TABLE t1;
SELECT 1 AS ` `;
@ -4648,17 +4648,17 @@ EXPLAIN EXTENDED SELECT * FROM t1 WHERE (a=a AND b=b AND c=c) OR b > 20;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select '0' AS `a`,'0' AS `b`,'0' AS `c` from `test`.`t1` where 1
Note 1003 select NULL AS `a`,NULL AS `b`,NULL AS `c` from `test`.`t1` where 1
EXPLAIN EXTENDED SELECT * FROM t1 WHERE (a=a AND a=a AND b=b) OR b > 20;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select '0' AS `a`,'0' AS `b`,'0' AS `c` from `test`.`t1` where 1
Note 1003 select NULL AS `a`,NULL AS `b`,NULL AS `c` from `test`.`t1` where 1
EXPLAIN EXTENDED SELECT * FROM t1 WHERE (a=a AND b=b AND a=a) OR b > 20;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select '0' AS `a`,'0' AS `b`,'0' AS `c` from `test`.`t1` where 1
Note 1003 select NULL AS `a`,NULL AS `b`,NULL AS `c` from `test`.`t1` where 1
DROP TABLE t1;
#
# Bug#45266: Uninitialized variable lead to an empty result.

8
mysql-test/r/subselect.result
View file

@ -1496,7 +1496,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < (select max('0') from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < (select max(NULL) from `test`.`t2`)))
select * from t3 where a >= some (select b from t2);
a
explain extended select * from t3 where a >= some (select b from t2);
@ -1504,7 +1504,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min('0') from `test`.`t2`)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= (select min(NULL) from `test`.`t2`)))
select * from t3 where a >= all (select b from t2 group by 1);
a
6
@ -1515,7 +1515,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < <max>(select '0' AS `b` from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <not>((`test`.`t3`.`a` < <max>(select NULL AS `b` from `test`.`t2` group by 1)))
select * from t3 where a >= some (select b from t2 group by 1);
a
explain extended select * from t3 where a >= some (select b from t2 group by 1);
@ -1523,7 +1523,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
2 SUBQUERY t2 system NULL NULL NULL NULL 0 0.00 const row not found
Warnings:
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= <min>(select '0' AS `b` from `test`.`t2` group by 1)))
Note 1003 select `test`.`t3`.`a` AS `a` from `test`.`t3` where <nop>((`test`.`t3`.`a` >= <min>(select NULL AS `b` from `test`.`t2` group by 1)))
select * from t3 where NULL >= any (select b from t2);
a
explain extended select * from t3 where NULL >= any (select b from t2);

2
mysql-test/r/union.result
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@ -1585,7 +1585,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 UNION t1 system NULL NULL NULL NULL 0 0.00 const row not found
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL Using filesort
Warnings:
Note 1003 select '0' AS `a` from `test`.`t1` union select '0' AS `a` from `test`.`t1` order by `a`
Note 1003 select NULL AS `a` from `test`.`t1` union select NULL AS `a` from `test`.`t1` order by `a`
DROP TABLE t1;
End of 5.0 tests
#

12
mysql-test/t/explain.test
View file

@ -187,4 +187,16 @@ SET SESSION sql_mode=@old_sql_mode;
DROP TABLE t1;
--echo #
--echo # Bug#47669: Query showed by EXPLAIN EXTENDED gives different result from original query
--echo #
CREATE TABLE t1 (c int);
INSERT INTO t1 VALUES (NULL);
CREATE TABLE t2 (d int);
INSERT INTO t2 VALUES (NULL), (0);
EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = c) FROM t1;
DROP TABLE t1, t2;
--echo End of 5.1 tests.

5
mysys/charset.c
View file

@ -427,6 +427,11 @@ static void init_available_charsets(void)
}
void free_charsets(void)
{
charsets_initialized= MY_PTHREAD_ONCE_INIT;
}
uint get_collation_number(const char *name)
{
my_pthread_once(&charsets_initialized, init_available_charsets);

1
mysys/my_init.c
View file

@ -165,6 +165,7 @@ void my_end(int infoflag)
my_print_open_files();
}
}
free_charsets();
my_error_unregister_all();
my_once_free();

11
sql/item.cc
View file

@ -5690,9 +5690,14 @@ void Item_field::print(String *str, enum_query_type query_type)
char buff[MAX_FIELD_WIDTH];
String tmp(buff,sizeof(buff),str->charset());
field->val_str(&tmp);
str->append('\'');
str->append(tmp);
str->append('\'');
if (field->is_null())
str->append("NULL");
else
{
str->append('\'');
str->append(tmp);
str->append('\'');
}
return;
}
Item_ident::print(str, query_type);

1
sql/mysqld.cc
View file

@ -1287,6 +1287,7 @@ void clean_up(bool print_message)
lex_free(); /* Free some memory */
item_create_cleanup();
set_var_free();
free_charsets();
if (!opt_noacl)
{
#ifdef HAVE_DLOPEN