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Post-merge fix.

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unknown 2007-07-07 20:03:00 -07:00
parent 2e5be55ae9
commit f818654705
2 changed files with 40 additions and 0 deletions
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28
mysql-test/r/type_newdecimal.result
View file

@ -1481,6 +1481,34 @@ drop table t1;
SELECT 1.000000000000 * 99.999999999998 / 100 a,1.000000000000 * (99.999999999998 / 100) b;
a b
0.9999999999999800000000000000 0.9999999999999800000000000000
SELECT CAST(1 AS decimal(65,10));
CAST(1 AS decimal(65,10))
1.0000000000
SELECT CAST(1 AS decimal(66,10));
ERROR 42000: Too big precision 66 specified for column '1'. Maximum is 65.
SELECT CAST(1 AS decimal(65,30));
CAST(1 AS decimal(65,30))
1.000000000000000000000000000000
SELECT CAST(1 AS decimal(65,31));
ERROR 42000: Too big scale 31 specified for column '1'. Maximum is 30.
CREATE TABLE t1 (a int DEFAULT NULL, b int DEFAULT NULL);
INSERT INTO t1 VALUES (3,30), (1,10), (2,10);
SELECT a+CAST(1 AS decimal(65,30)) AS aa, SUM(b) FROM t1 GROUP BY aa;
aa SUM(b)
2.000000000000000000000000000000 10
3.000000000000000000000000000000 10
4.000000000000000000000000000000 30
SELECT a+CAST(1 AS decimal(65,31)) AS aa, SUM(b) FROM t1 GROUP BY aa;
ERROR 42000: Too big scale 31 specified for column '1'. Maximum is 30.
DROP TABLE t1;
CREATE TABLE t1 (a int DEFAULT NULL, b int DEFAULT NULL);
INSERT INTO t1 VALUES (3,30), (1,10), (2,10);
SET @a= CAST(1 AS decimal);
SELECT 1 FROM t1 GROUP BY @b := @a, @b;
1
1
1
DROP TABLE t1;
End of 5.0 tests
select cast(143.481 as decimal(4,1));
cast(143.481 as decimal(4,1))

12
sql/item_create.cc
View file

@ -5039,6 +5039,18 @@ create_func_cast(THD *thd, Item *a, Cast_target cast_type,
my_error(ER_M_BIGGER_THAN_D, MYF(0), "");
return 0;
}
if (len > DECIMAL_MAX_PRECISION)
{
my_error(ER_TOO_BIG_PRECISION, MYF(0), len, a->name,
DECIMAL_MAX_PRECISION);
return 0;
}
if (dec > DECIMAL_MAX_SCALE)
{
my_error(ER_TOO_BIG_SCALE, MYF(0), dec, a->name,
DECIMAL_MAX_SCALE);
return 0;
}
res= new (thd->mem_root) Item_decimal_typecast(a, len, dec);
break;
}