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Commit a116f93d authored by unknown's avatar unknown
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Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0-opt 

into  moonbone.local:/work/17254-bug-5.0-opt-mysql
parents af1b3da5 6c0ff6c2
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Showing with 372 additions and 27 deletions
client/mysqltest.c
View file @ a116f93d
......@@ -222,11 +222,13 @@ struct st_connection
char *name;
MYSQL_STMT* stmt;
#ifdef EMBEDDED_LIBRARY
const char *cur_query;
int cur_query_len;
pthread_mutex_t mutex;
pthread_cond_t cond;
int query_done;
#endif /*EMBEDDED_LIBRARY*/
};
struct st_connection connections[128];
struct st_connection* cur_con, *next_con, *connections_end;
......
mysql-test/r/compare.result
View file @ a116f93d
......@@ -46,6 +46,10 @@ create table t1 (a tinyint(1),b binary(1));
insert into t1 values (0x01,0x01);
select * from t1 where a=b;
a b
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: ''
select * from t1 where a=b and b=0x01;
a b
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: ''
drop table if exists t1;
mysql-test/r/func_gconcat.result
View file @ a116f93d
......@@ -64,11 +64,49 @@ grp group_concat(a order by a,d+c-ascii(c)-a)
1 1
2 2,3
3 4,5,6,7,8,9
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'c '
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'E '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'C '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'D '
Warning 1292 Truncated incorrect DOUBLE value: 'd '
Warning 1292 Truncated incorrect DOUBLE value: 'd '
Warning 1292 Truncated incorrect DOUBLE value: 'd '
Warning 1292 Truncated incorrect DOUBLE value: 'd '
Warning 1292 Truncated incorrect DOUBLE value: 'c '
Warning 1292 Truncated incorrect DOUBLE value: 'D '
select grp,group_concat(a order by d+c-ascii(c),a) from t1 group by grp;
grp group_concat(a order by d+c-ascii(c),a)
1 1
2 3,2
3 7,8,4,6,9,5
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'c '
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'E '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'C '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'D '
Warning 1292 Truncated incorrect DOUBLE value: 'd '
Warning 1292 Truncated incorrect DOUBLE value: 'd '
Warning 1292 Truncated incorrect DOUBLE value: 'd '
Warning 1292 Truncated incorrect DOUBLE value: 'd '
Warning 1292 Truncated incorrect DOUBLE value: 'c '
Warning 1292 Truncated incorrect DOUBLE value: 'D '
select grp,group_concat(c order by 1) from t1 group by grp;
grp group_concat(c order by 1)
1 a
......
mysql-test/r/func_group.result
View file @ a116f93d
......@@ -62,6 +62,13 @@ NULL NULL
1 7
2 20.25
3 45.483163247594
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'a '
Warning 1292 Truncated incorrect DOUBLE value: 'b '
Warning 1292 Truncated incorrect DOUBLE value: 'c '
Warning 1292 Truncated incorrect DOUBLE value: 'C '
Warning 1292 Truncated incorrect DOUBLE value: 'E '
create table t2 (grp int, a bigint unsigned, c char(10));
insert into t2 select grp,max(a)+max(grp),max(c) from t1 group by grp;
replace into t2 select grp, a, c from t1 limit 2,1;
......
mysql-test/r/group_min_max.result
View file @ a116f93d
......@@ -2162,3 +2162,127 @@ SELECT MIN(c) FROM t2 WHERE b = 2 and a = 1 and c > 1 GROUP BY a;
MIN(c)
2
DROP TABLE t1,t2;
CREATE TABLE t1 (a INT, b INT, INDEX (a,b));
INSERT INTO t1 (a, b) VALUES (1,1), (1,2), (1,3), (1,4), (1,5),
(2,2), (2,3), (2,1), (3,1), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6);
EXPLAIN SELECT max(b), a FROM t1 GROUP BY a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range NULL a 5 NULL 8 Using index for group-by
FLUSH STATUS;
SELECT max(b), a FROM t1 GROUP BY a;
max(b) a
5 1
3 2
1 3
6 4
SHOW STATUS LIKE 'handler_read__e%';
Variable_name Value
Handler_read_key 8
Handler_read_next 0
EXPLAIN SELECT max(b), a FROM t1 GROUP BY a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range NULL a 5 NULL 8 Using index for group-by
FLUSH STATUS;
CREATE TABLE t2 SELECT max(b), a FROM t1 GROUP BY a;
SHOW STATUS LIKE 'handler_read__e%';
Variable_name Value
Handler_read_key 8
Handler_read_next 0
FLUSH STATUS;
SELECT * FROM (SELECT max(b), a FROM t1 GROUP BY a) b;
max(b) a
5 1
3 2
1 3
6 4
SHOW STATUS LIKE 'handler_read__e%';
Variable_name Value
Handler_read_key 8
Handler_read_next 0
FLUSH STATUS;
(SELECT max(b), a FROM t1 GROUP BY a) UNION
(SELECT max(b), a FROM t1 GROUP BY a);
max(b) a
5 1
3 2
1 3
6 4
SHOW STATUS LIKE 'handler_read__e%';
Variable_name Value
Handler_read_key 16
Handler_read_next 0
EXPLAIN (SELECT max(b), a FROM t1 GROUP BY a) UNION
(SELECT max(b), a FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 range NULL a 5 NULL 8 Using index for group-by
2 UNION t1 range NULL a 5 NULL 8 Using index for group-by
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
EXPLAIN SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
FROM t1 AS t1_outer;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1_outer index NULL a 10 NULL 15 Using index
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE EXISTS
(SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1_outer index NULL a 10 NULL 15 Using index
2 SUBQUERY t1 index NULL a 10 NULL 8 Using index
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
(SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) > 12;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
a IN (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1_outer index NULL a 10 NULL 15 Using where; Using index
2 DEPENDENT SUBQUERY t1 index NULL a 10 NULL 8 Using index
EXPLAIN SELECT 1 FROM t1 AS t1_outer GROUP BY a HAVING
a > (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1_outer range NULL a 5 NULL 8 Using index for group-by
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
EXPLAIN SELECT 1 FROM t1 AS t1_outer1 JOIN t1 AS t1_outer2
ON t1_outer1.a = (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2)
AND t1_outer1.b = t1_outer2.b;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1_outer1 ref a a 5 const 1 Using where; Using index
1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using where; Using index
2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
EXPLAIN SELECT (SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
FROM t1 AS t1_outer) x2 FROM t1 AS t1_outer2;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using index
2 SUBQUERY t1_outer index NULL a 10 NULL 15 Using index
3 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by
CREATE TABLE t3 LIKE t1;
FLUSH STATUS;
INSERT INTO t3 SELECT a,MAX(b) FROM t1 GROUP BY a;
SHOW STATUS LIKE 'handler_read__e%';
Variable_name Value
Handler_read_key 8
Handler_read_next 0
DELETE FROM t3;
FLUSH STATUS;
INSERT INTO t3 SELECT 1, (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2)
FROM t1 LIMIT 1;
SHOW STATUS LIKE 'handler_read__e%';
Variable_name Value
Handler_read_key 8
Handler_read_next 0
FLUSH STATUS;
DELETE FROM t3 WHERE (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2) > 10000;
SHOW STATUS LIKE 'handler_read__e%';
Variable_name Value
Handler_read_key 8
Handler_read_next 0
FLUSH STATUS;
DELETE FROM t3 WHERE (SELECT (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2) x
FROM t1) > 10000;
Warnings:
Error 1242 Subquery returns more than 1 row
SHOW STATUS LIKE 'handler_read__e%';
Variable_name Value
Handler_read_key 8
Handler_read_next 1
DROP TABLE t1,t2,t3;
mysql-test/r/type_varchar.result
View file @ a116f93d
......@@ -453,3 +453,38 @@ id name_id id en cz
2 3 2 en string 2 cz string 2
3 3 3 en string 3 cz string 3
drop table t1, t2, t3;
CREATE TABLE t1 (a CHAR(2));
INSERT INTO t1 VALUES (10), (50), (30), ('1a'), (60), ('t');
SELECT a,(a + 0) FROM t1 ORDER BY a;
a (a + 0)
10 10
1a 1
30 30
50 50
60 60
t 0
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: '1a'
Warning 1292 Truncated incorrect DOUBLE value: 't '
SELECT a,(a DIV 2) FROM t1 ORDER BY a;
a (a DIV 2)
10 5
1a 0
30 15
50 25
60 30
t 0
Warnings:
Warning 1292 Truncated incorrect INTEGER value: '1a'
Warning 1292 Truncated incorrect INTEGER value: 't '
SELECT a,CAST(a AS SIGNED) FROM t1 ORDER BY a;
a CAST(a AS SIGNED)
10 10
1a 1
30 30
50 50
60 60
t 0
Warnings:
Warning 1292 Truncated incorrect INTEGER value: '1a'
Warning 1292 Truncated incorrect INTEGER value: 't'
mysql-test/t/group_min_max.test
View file @ a116f93d
......@@ -810,3 +810,63 @@ explain SELECT MIN(c) FROM t2 WHERE b = 2 and a = 1 and c > 1 GROUP BY a;
SELECT MIN(c) FROM t2 WHERE b = 2 and a = 1 and c > 1 GROUP BY a;
DROP TABLE t1,t2;
#
# Bug#24156: Loose index scan not used with CREATE TABLE ...SELECT and similar statements
#
CREATE TABLE t1 (a INT, b INT, INDEX (a,b));
INSERT INTO t1 (a, b) VALUES (1,1), (1,2), (1,3), (1,4), (1,5),
(2,2), (2,3), (2,1), (3,1), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6);
EXPLAIN SELECT max(b), a FROM t1 GROUP BY a;
FLUSH STATUS;
SELECT max(b), a FROM t1 GROUP BY a;
SHOW STATUS LIKE 'handler_read__e%';
EXPLAIN SELECT max(b), a FROM t1 GROUP BY a;
FLUSH STATUS;
CREATE TABLE t2 SELECT max(b), a FROM t1 GROUP BY a;
SHOW STATUS LIKE 'handler_read__e%';
FLUSH STATUS;
SELECT * FROM (SELECT max(b), a FROM t1 GROUP BY a) b;
SHOW STATUS LIKE 'handler_read__e%';
FLUSH STATUS;
(SELECT max(b), a FROM t1 GROUP BY a) UNION
(SELECT max(b), a FROM t1 GROUP BY a);
SHOW STATUS LIKE 'handler_read__e%';
EXPLAIN (SELECT max(b), a FROM t1 GROUP BY a) UNION
(SELECT max(b), a FROM t1 GROUP BY a);
EXPLAIN SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
FROM t1 AS t1_outer;
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE EXISTS
(SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
(SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) > 12;
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
a IN (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
EXPLAIN SELECT 1 FROM t1 AS t1_outer GROUP BY a HAVING
a > (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
EXPLAIN SELECT 1 FROM t1 AS t1_outer1 JOIN t1 AS t1_outer2
ON t1_outer1.a = (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2)
AND t1_outer1.b = t1_outer2.b;
EXPLAIN SELECT (SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
FROM t1 AS t1_outer) x2 FROM t1 AS t1_outer2;
CREATE TABLE t3 LIKE t1;
FLUSH STATUS;
INSERT INTO t3 SELECT a,MAX(b) FROM t1 GROUP BY a;
SHOW STATUS LIKE 'handler_read__e%';
DELETE FROM t3;
FLUSH STATUS;
INSERT INTO t3 SELECT 1, (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2)
FROM t1 LIMIT 1;
SHOW STATUS LIKE 'handler_read__e%';
FLUSH STATUS;
DELETE FROM t3 WHERE (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2) > 10000;
SHOW STATUS LIKE 'handler_read__e%';
FLUSH STATUS;
DELETE FROM t3 WHERE (SELECT (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2) x
FROM t1) > 10000;
SHOW STATUS LIKE 'handler_read__e%';
DROP TABLE t1,t2,t3;
mysql-test/t/type_varchar.test
View file @ a116f93d
......@@ -187,3 +187,12 @@ left join t3 on t1.id=t3.id order by t3.id;
--disable_metadata
--enable_ps_protocol
drop table t1, t2, t3;
#
# Bug #11927: Warnings shown for CAST( chr as signed) but not (chr + 0)
#
CREATE TABLE t1 (a CHAR(2));
INSERT INTO t1 VALUES (10), (50), (30), ('1a'), (60), ('t');
SELECT a,(a + 0) FROM t1 ORDER BY a;
SELECT a,(a DIV 2) FROM t1 ORDER BY a;
SELECT a,CAST(a AS SIGNED) FROM t1 ORDER BY a;
sql/field.cc
View file @ a116f93d
......@@ -47,6 +47,8 @@ uchar Field_null::null[1]={1};
const char field_separator=',';
#define DOUBLE_TO_STRING_CONVERSION_BUFFER_SIZE 320
#define LONGLONG_TO_STRING_CONVERSION_BUFFER_SIZE 128
#define DECIMAL_TO_STRING_CONVERSION_BUFFER_SIZE 128
#define BLOB_PACK_LENGTH_TO_MAX_LENGH(arg) \
((ulong) ((LL(1) << min(arg, 4) * 8) - LL(1)))
......@@ -6056,19 +6058,49 @@ int Field_longstr::store_decimal(const my_decimal *d)
double Field_string::val_real(void)
{
int not_used;
char *end_not_used;
int error;
char *end;
CHARSET_INFO *cs= charset();
return my_strntod(cs,ptr,field_length,&end_not_used,&not_used);
double result;
result= my_strntod(cs,ptr,field_length,&end,&error);
if (!table->in_use->no_errors &&
(error || (field_length != (uint32)(end - ptr) &&
!check_if_only_end_space(cs, end, ptr + field_length))))
{
char buf[DOUBLE_TO_STRING_CONVERSION_BUFFER_SIZE];
String tmp(buf, sizeof(buf), cs);
tmp.copy(ptr, field_length, cs);
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
ER_TRUNCATED_WRONG_VALUE,
ER(ER_TRUNCATED_WRONG_VALUE),
"DOUBLE", tmp.c_ptr());
}
return result;
}
longlong Field_string::val_int(void)
{
int not_used;
char *end_not_used;
CHARSET_INFO *cs=charset();
return my_strntoll(cs,ptr,field_length,10,&end_not_used,&not_used);
int error;
char *end;
CHARSET_INFO *cs= charset();
longlong result;
result= my_strntoll(cs,ptr,field_length,10,&end,&error);
if (!table->in_use->no_errors &&
(error || (field_length != (uint32)(end - ptr) &&
!check_if_only_end_space(cs, end, ptr + field_length))))
{
char buf[LONGLONG_TO_STRING_CONVERSION_BUFFER_SIZE];
String tmp(buf, sizeof(buf), cs);
tmp.copy(ptr, field_length, cs);
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
ER_TRUNCATED_WRONG_VALUE,
ER(ER_TRUNCATED_WRONG_VALUE),
"INTEGER", tmp.c_ptr());
}
return result;
}
......@@ -6085,8 +6117,20 @@ String *Field_string::val_str(String *val_buffer __attribute__((unused)),
my_decimal *Field_string::val_decimal(my_decimal *decimal_value)
{
str2my_decimal(E_DEC_FATAL_ERROR, ptr, field_length, charset(),
int err= str2my_decimal(E_DEC_FATAL_ERROR, ptr, field_length, charset(),
decimal_value);
if (!table->in_use->no_errors && err)
{
char buf[DECIMAL_TO_STRING_CONVERSION_BUFFER_SIZE];
CHARSET_INFO *cs= charset();
String tmp(buf, sizeof(buf), cs);
tmp.copy(ptr, field_length, cs);
push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_WARN,
ER_TRUNCATED_WRONG_VALUE,
ER(ER_TRUNCATED_WRONG_VALUE),
"DECIMAL", tmp.c_ptr());
}
return decimal_value;
}
......
sql/item.cc
View file @ a116f93d
......@@ -2175,12 +2175,6 @@ void Item_string::print(String *str)
}
inline bool check_if_only_end_space(CHARSET_INFO *cs, char *str, char *end)
{
return str+ cs->cset->scan(cs, str, end, MY_SEQ_SPACES) == end;
}
double Item_string::val_real()
{
DBUG_ASSERT(fixed == 1);
......@@ -4764,6 +4758,22 @@ bool Item_field::send(Protocol *protocol, String *buffer)
}
void Item_field::update_null_value()
{
/*
need to set no_errors to prevent warnings about type conversion
popping up.
*/
THD *thd= field->table->in_use;
int no_errors;
no_errors= thd->no_errors;
thd->no_errors= 1;
Item::update_null_value();
thd->no_errors= no_errors;
}
Item_ref::Item_ref(Name_resolution_context *context_arg,
Item **item, const char *table_name_arg,
const char *field_name_arg)
......@@ -6120,7 +6130,7 @@ bool Item_cache_row::null_inside()
}
else
{
values[i]->val_int();
values[i]->update_null_value();
if (values[i]->null_value)
return 1;
}
......
sql/item.h
View file @ a116f93d
......@@ -703,6 +703,11 @@ public:
*/
virtual bool is_null() { return 0; }
/*
Make sure the null_value member has a correct value.
*/
virtual void update_null_value () { (void) val_int(); }
/*
Inform the item that there will be no distinction between its result
being FALSE or NULL.
......@@ -1270,6 +1275,7 @@ public:
bool get_date_result(TIME *ltime,uint fuzzydate);
bool get_time(TIME *ltime);
bool is_null() { return field->is_null(); }
void update_null_value();
Item *get_tmp_table_item(THD *thd);
bool collect_item_field_processor(byte * arg);
bool find_item_in_field_list_processor(byte *arg);
......
sql/item_func.h
View file @ a116f93d
......@@ -157,7 +157,7 @@ public:
return (null_value=args[0]->get_time(ltime));
}
bool is_null() {
(void) val_int(); /* Discard result. It sets null_value as side-effect. */
update_null_value();
return null_value;
}
void signal_divide_by_null();
......@@ -241,7 +241,7 @@ public:
virtual double real_op()= 0;
virtual my_decimal *decimal_op(my_decimal *)= 0;
virtual String *str_op(String *)= 0;
bool is_null() { (void) val_real(); return null_value; }
bool is_null() { update_null_value(); return null_value; }
};
/* function where type of result detected by first argument */
......
sql/item_subselect.h
View file @ a116f93d
......@@ -91,7 +91,7 @@ public:
enum Type type() const;
bool is_null()
{
val_int();
update_null_value();
return null_value;
}
bool fix_fields(THD *thd, Item **ref);
......
sql/item_sum.cc
View file @ a116f93d
......@@ -1050,7 +1050,7 @@ bool Item_sum_count::add()
count++;
else
{
(void) args[0]->val_int();
args[0]->update_null_value();
if (!args[0]->null_value)
count++;
}
......@@ -1957,7 +1957,7 @@ void Item_sum_count::reset_field()
nr=1;
else
{
(void) args[0]->val_int();
args[0]->update_null_value();
if (!args[0]->null_value)
nr=1;
}
......@@ -2067,7 +2067,7 @@ void Item_sum_count::update_field()
nr++;
else
{
(void) args[0]->val_int();
args[0]->update_null_value();
if (!args[0]->null_value)
nr++;
}
......@@ -2547,7 +2547,7 @@ bool Item_sum_count_distinct::setup(THD *thd)
return TRUE; // End of memory
if (item->const_item())
{
(void) item->val_int();
item->update_null_value();
if (item->null_value)
always_null=1;
}
......
sql/item_sum.h
View file @ a116f93d
......@@ -618,7 +618,7 @@ public:
double val_real();
longlong val_int();
my_decimal *val_decimal(my_decimal *);
bool is_null() { (void) val_int(); return null_value; }
bool is_null() { update_null_value(); return null_value; }
String *val_str(String*);
enum_field_types field_type() const
{
......@@ -685,7 +685,7 @@ public:
{ /* can't be fix_fields()ed */ return (longlong) rint(val_real()); }
String *val_str(String*);
my_decimal *val_decimal(my_decimal *);
bool is_null() { (void) val_int(); return null_value; }
bool is_null() { update_null_value(); return null_value; }
enum_field_types field_type() const
{
return hybrid_type == DECIMAL_RESULT ?
......
sql/opt_range.cc
View file @ a116f93d
......@@ -7445,7 +7445,7 @@ static TRP_GROUP_MIN_MAX *
get_best_group_min_max(PARAM *param, SEL_TREE *tree)
{
THD *thd= param->thd;
JOIN *join= thd->lex->select_lex.join;
JOIN *join= thd->lex->current_select->join;
TABLE *table= param->table;
bool have_min= FALSE; /* TRUE if there is a MIN function. */
bool have_max= FALSE; /* TRUE if there is a MAX function. */
......@@ -7466,7 +7466,7 @@ get_best_group_min_max(PARAM *param, SEL_TREE *tree)
DBUG_ENTER("get_best_group_min_max");
/* Perform few 'cheap' tests whether this access method is applicable. */
if (!join || (thd->lex->sql_command != SQLCOM_SELECT))
if (!join)
DBUG_RETURN(NULL); /* This is not a select statement. */
if ((join->tables != 1) || /* The query must reference one table. */
((!join->group_list) && /* Neither GROUP BY nor a DISTINCT query. */
......@@ -8316,7 +8316,7 @@ TRP_GROUP_MIN_MAX::make_quick(PARAM *param, bool retrieve_full_rows,
DBUG_ENTER("TRP_GROUP_MIN_MAX::make_quick");
quick= new QUICK_GROUP_MIN_MAX_SELECT(param->table,
param->thd->lex->select_lex.join,
param->thd->lex->current_select->join,
have_min, have_max, min_max_arg_part,
group_prefix_len, used_key_parts,
index_info, index, read_cost, records,
......
sql/sql_string.h
View file @ a116f93d
......@@ -363,3 +363,9 @@ public:
return (s->alloced && Ptr >= s->Ptr && Ptr < s->Ptr + s->str_length);
}
};
static inline bool check_if_only_end_space(CHARSET_INFO *cs, char *str,
char *end)
{
return str+ cs->cset->scan(cs, str, end, MY_SEQ_SPACES) == end;
}
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