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Merge rkalimullin@bk-internal.mysql.com:/home/bk/mysql-4.0

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into  mysql.com:/usr/home/ram/work/mysql-4.0
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2006-04-11 10:46:21 +05:00
parent 747f81c22c d1a8ccc127
commit d943c58761
3 changed files with 24 additions and 4 deletions
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11
mysql-test/r/func_op.result
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@@ -25,3 +25,14 @@ select -1 >> 0, -1 << 0;
select -1 >> 1, -1 << 1; select -1 >> 1, -1 << 1;
-1 >> 1 -1 << 1 -1 >> 1 -1 << 1
9223372036854775807 18446744073709551614 9223372036854775807 18446744073709551614
drop table if exists t1,t2;
create table t1(a int);
create table t2(a int, b int);
insert into t1 values (1), (2), (3);
insert into t2 values (1, 7), (3, 7);
select t1.a, t2.a, t2.b, bit_count(t2.b) from t1 left join t2 on t1.a=t2.a;
a a b bit_count(t2.b)
1 1 7 3
2 NULL NULL NULL
3 3 7 3
drop table t1, t2;

12
mysql-test/t/func_op.test
View File

@@ -14,3 +14,15 @@ select 1 | -1, 1 ^ -1, 1 & -1;
select 0 | -1, 0 ^ -1, 0 & -1; select 0 | -1, 0 ^ -1, 0 & -1;
select -1 >> 0, -1 << 0; select -1 >> 0, -1 << 0;
select -1 >> 1, -1 << 1; select -1 >> 1, -1 << 1;
#
# Bug 13044: wrong bit_count() results
#
drop table if exists t1,t2;
create table t1(a int);
create table t2(a int, b int);
insert into t1 values (1), (2), (3);
insert into t2 values (1, 7), (3, 7);
select t1.a, t2.a, t2.b, bit_count(t2.b) from t1 left join t2 on t1.a=t2.a;
drop table t1, t2;

5
sql/item_func.cc
View File

@@ -1138,11 +1138,8 @@ longlong Item_func_find_in_set::val_int()
longlong Item_func_bit_count::val_int() longlong Item_func_bit_count::val_int()
{ {
ulonglong value= (ulonglong) args[0]->val_int(); ulonglong value= (ulonglong) args[0]->val_int();
if (args[0]->null_value) if ((null_value= args[0]->null_value))
{
null_value=1; /* purecov: inspected */
return 0; /* purecov: inspected */ return 0; /* purecov: inspected */
}
return (longlong) my_count_bits(value); return (longlong) my_count_bits(value);
} }