Commit 53946550 authored by unknown's avatar unknown
Browse files

Merge bk-internal.mysql.com:/home/bk/mysql-4.1-maint 

into  qualinost.(none):/home/mtaylor/src/mysql-4.1-maint
parents 72a0d004 fee0649c

mysql-test/r/type_float.result

+71 −0
Original line number Diff line number Diff line
@@ -278,4 +278,75 @@ select 1e-308, 1.00000001e-300, 100000000e-300; 
select 10e307;

10e307

1e+308

create table t1(a int, b double(8, 2));

insert into t1 values

(1, 28.50), (1, 121.85), (1, 157.23), (1, 1351.00), (1, -1965.35), (1, 81.75), 

(1, 217.08), (1, 7.94), (4, 96.07), (4, 6404.65), (4, -6500.72), (2, 100.00),

(5, 5.00), (5, -2104.80), (5, 2033.80), (5, 0.07), (5, 65.93),

(3, -4986.24), (3, 5.00), (3, 4857.34), (3, 123.74), (3,  0.16),

(6, -1695.31), (6, 1003.77), (6, 499.72), (6, 191.82);

explain select sum(b) s from t1 group by a;

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra

1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	26	Using temporary; Using filesort

select sum(b) s from t1 group by a;

s

0.00

100.00

0.00

-0.00

-0.00

0.00

select sum(b) s from t1 group by a having s <> 0;

s

100.00

select sum(b) s from t1 group by a having s <> 0 order by s;

s

100.00

select sum(b) s from t1 group by a having s <=> 0;

s

0.00

0.00

-0.00

-0.00

0.00

select sum(b) s from t1 group by a having s <=> 0 order by s;

s

-0.00

-0.00

0.00

0.00

0.00

alter table t1 add key (a, b);

explain select sum(b) s from t1 group by a;

id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra

1	SIMPLE	t1	index	NULL	a	14	NULL	26	Using index

select sum(b) s from t1 group by a;

s

0.00

100.00

0.00

-0.00

0.00

0.00

select sum(b) s from t1 group by a having s <> 0;

s

100.00

select sum(b) s from t1 group by a having s <> 0 order by s;

s

100.00

select sum(b) s from t1 group by a having s <=> 0;

s

0.00

0.00

-0.00

0.00

0.00

select sum(b) s from t1 group by a having s <=> 0 order by s;

s

-0.00

0.00

0.00

0.00

0.00

drop table t1;

End of 4.1 tests

mysql-test/t/type_float.test

+25 −0
Original line number Diff line number Diff line
@@ -188,4 +188,29 @@ select 1e-308, 1.00000001e-300, 100000000e-300; 
# check if overflows are detected correctly

select 10e307;



#

# Bug #19690: ORDER BY eliminates rows from the result

#

create table t1(a int, b double(8, 2));

insert into t1 values

(1, 28.50), (1, 121.85), (1, 157.23), (1, 1351.00), (1, -1965.35), (1, 81.75), 

(1, 217.08), (1, 7.94), (4, 96.07), (4, 6404.65), (4, -6500.72), (2, 100.00),

(5, 5.00), (5, -2104.80), (5, 2033.80), (5, 0.07), (5, 65.93),

(3, -4986.24), (3, 5.00), (3, 4857.34), (3, 123.74), (3,  0.16),

(6, -1695.31), (6, 1003.77), (6, 499.72), (6, 191.82);

explain select sum(b) s from t1 group by a;

select sum(b) s from t1 group by a;

select sum(b) s from t1 group by a having s <> 0;

select sum(b) s from t1 group by a having s <> 0 order by s;

select sum(b) s from t1 group by a having s <=> 0;

select sum(b) s from t1 group by a having s <=> 0 order by s;

alter table t1 add key (a, b);

explain select sum(b) s from t1 group by a;

select sum(b) s from t1 group by a;

select sum(b) s from t1 group by a having s <> 0;

select sum(b) s from t1 group by a having s <> 0 order by s;

select sum(b) s from t1 group by a having s <=> 0;

select sum(b) s from t1 group by a having s <=> 0 order by s;

drop table t1;



--echo End of 4.1 tests

sql/field.cc

+1 −1
Original line number Diff line number Diff line
@@ -3318,7 +3318,7 @@ int Field_double::store(double nr) 
  else 

  {

    double max_value;

    if (dec >= NOT_FIXED_DEC)

    if (not_fixed)

    {

      max_value= DBL_MAX;

    }

sql/field.h

+12 −3
Original line number Diff line number Diff line
@@ -616,6 +616,7 @@ class Field_float :public Field_num { 


class Field_double :public Field_num {

public:

  my_bool not_fixed;

  Field_double(char *ptr_arg, uint32 len_arg, uchar *null_ptr_arg,

	       uchar null_bit_arg,

	       enum utype unireg_check_arg, const char *field_name_arg,
@@ -623,12 +624,20 @@ class Field_double :public Field_num { 
	       uint8 dec_arg,bool zero_arg,bool unsigned_arg)

    :Field_num(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,

	       unireg_check_arg, field_name_arg, table_arg,

	       dec_arg, zero_arg,unsigned_arg)

	       dec_arg, zero_arg, unsigned_arg),

     not_fixed(dec_arg >= NOT_FIXED_DEC)

    {}

  Field_double(uint32 len_arg, bool maybe_null_arg, const char *field_name_arg,

	       struct st_table *table_arg, uint8 dec_arg)

    :Field_num((char *) 0, len_arg, maybe_null_arg ? (uchar *) "" : 0, (uint) 0,

	       NONE, field_name_arg, table_arg,dec_arg,0,0)

	       NONE, field_name_arg, table_arg,dec_arg, 0, 0),

     not_fixed(dec_arg >= NOT_FIXED_DEC)

    {}

  Field_double(uint32 len_arg, bool maybe_null_arg, const char *field_name_arg,

	       struct st_table *table_arg, uint8 dec_arg, my_bool not_fixed_srg)

    :Field_num((char *) 0, len_arg, maybe_null_arg ? (uchar *) "" : 0, (uint) 0,

	       NONE, field_name_arg, table_arg, dec_arg, 0, 0), 

    not_fixed(not_fixed_srg)

    {}

  enum_field_types type() const { return FIELD_TYPE_DOUBLE;}

  enum ha_base_keytype key_type() const { return HA_KEYTYPE_DOUBLE; }

sql/init.cc

+6 −0
Original line number Diff line number Diff line
@@ -45,6 +45,12 @@ void unireg_init(ulong options) 
  {					/* It's used by filesort... */

    log_10[i]= nr ; nr*= 10.0;

  }

  /* Make a tab of powers of 0.1 */

  for (i= 0, nr= 0.1; i < array_elements(log_01); i++)

  {

    log_01[i]= nr;

    nr*= 0.1;

  }

  specialflag|=options;			/* Set options from argv */

  DBUG_VOID_RETURN;

}