type_float.test

这是linux下运行的mysql软件包,可用于linux 下安装 php + mysql + apach 的网络配置

# Description
# -----------
# Numeric floating point.

--disable_warnings
drop table if exists t1,t2;
--enable_warnings

SELECT 10,10.0,10.,.1e+2,100.0e-1;
SELECT 6e-05, -6e-05, --6e-05, -6e-05+1.000000;
SELECT 1e1,1.e1,1.0e1,1e+1,1.e+1,1.0e+1,1e-1,1.e-1,1.0e-1;
SELECT 0.001e+1,0.001e-1, -0.001e+01,-0.001e-01;
SELECT 123.23E+02,-123.23E-02,"123.23E+02"+0.0,"-123.23E-02"+0.0;
SELECT 2147483647E+02,21474836.47E+06;

create table t1 (f1 float(24),f2 float(52));
# We mask out Privileges column because it differs for embedded server
--replace_column 8 #
show full columns from t1;
insert into t1 values(10,10),(1e+5,1e+5),(1234567890,1234567890),(1e+10,1e+10),(1e+15,1e+15),(1e+20,1e+20),(1e+50,1e+50),(1e+150,1e+150);
insert into t1 values(-10,-10),(1e-5,1e-5),(1e-10,1e-10),(1e-15,1e-15),(1e-20,1e-20),(1e-50,1e-50),(1e-150,1e-150);
select * from t1;
drop table t1;

create table t1 (datum double);
insert into t1 values (0.5),(1.0),(1.5),(2.0),(2.5);
select * from t1;
select * from t1 where datum < 1.5;
select * from t1 where datum > 1.5;
select * from t1 where datum = 1.5;
drop table t1;

create table t1 (a  decimal(7,3) not null, key (a));
insert into t1 values ("0"),("-0.00"),("-0.01"),("-0.002"),("1");
select a from t1 order by a;
select min(a) from t1;
drop table t1;

#
# BUG#3612, BUG#4393, BUG#4356, BUG#4394
#

create table t1 (c1 double, c2 varchar(20));
insert t1 values (121,"16");
select c1 + c1 * (c2 / 100) as col from t1;
create table t2 select c1 + c1 * (c2 / 100) as col1, round(c1, 5) as col2, round(c1, 35) as col3, sqrt(c1*1e-15) col4 from t1;
# Floats are a bit different in PS
--disable_ps_protocol
select * from t2;
--enable_ps_protocol
show create table t2;
drop table t1,t2;

# Bug #1022: When a table contains a 'float' field, 
# and one of the functions MAX, MIN, or AVG is used on that field,
# the system crashes.

create table t1 (a float);
insert into t1 values (1);
select max(a),min(a),avg(a) from t1;
drop table t1;

#
# FLOAT/DOUBLE/DECIMAL handling
#

create table t1 (f float, f2 float(24), f3 float(6,2), d double, d2 float(53), d3 double(10,3), de decimal, de2 decimal(6), de3 decimal(5,2), n numeric, n2 numeric(8), n3 numeric(7,6));
# We mask out Privileges column because it differs for embedded server
--replace_column 8 #
show full columns from t1;
drop table t1;

create table t1 (a  decimal(7,3) not null, key (a));
insert into t1 values ("0"),("-0.00"),("-0.01"),("-0.002"),("1");
select a from t1 order by a;
select min(a) from t1;
drop table t1;

--error 1425
create table t1 (a float(200,100), b double(200,100));

#
# float in a char(1) field
#
create table t1 (c20 char);
insert into t1 values (5000.0);
insert into t1 values (0.5e4);
drop table t1;

# Errors

--error 1063
create table t1 (f float(54));	# Should give an error
--disable_warnings
drop table if exists t1;
--enable_warnings

# Don't allow 'double unsigned' to be set to a negative value (Bug #7700)
create table t1 (d1 double, d2 double unsigned);
insert into t1 set d1 = -1.0;
update t1 set d2 = d1;
select * from t1;
drop table t1;

# Ensure that maximum values as the result of number of decimals
# being specified in table schema are enforced (Bug #7361)
create table t1 (f float(4,3));
insert into t1 values (-11.0),(-11),("-11"),(11.0),(11),("11");
select * from t1;
drop table if exists t1;
create table t1 (f double(4,3));
insert into t1 values (-11.0),(-11),("-11"),(11.0),(11),("11");
select * from t1;
drop table if exists t1;

# Check conversion of floats to character field (Bug #7774)
create table t1 (c char(20));
insert into t1 values (5e-28);
# Expected result is "5e-28", but windows returns "5e-028"
--replace_result 5e-028 5e-28
select * from t1;
drop table t1;
create table t1 (c char(6));
insert into t1 values (2e5),(2e6),(2e-4),(2e-5);
# Expected result is "2e+06", but windows returns "2e+006"
# Expected result is "2e-05", but windows returns "2e-005"
--replace_result 2e+006 2e+06 2e-005 2e-05
select * from t1;
drop table t1;

#
# Test of comparison of integer with float-in-range (Bug #7840)
# This is needed because some ODBC applications (like Foxpro) uses
# floats for everything.
#

CREATE TABLE t1 (
  reckey int unsigned NOT NULL,
  recdesc varchar(50) NOT NULL,
  PRIMARY KEY  (reckey)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

INSERT INTO t1 VALUES (108, 'Has 108 as key');
INSERT INTO t1 VALUES (109, 'Has 109 as key');
select * from t1 where reckey=108;
select * from t1 where reckey=1.08E2;
select * from t1 where reckey=109;
select * from t1 where reckey=1.09E2;
drop table t1;

#
# Bug #13372 (decimal union)
#
create table t1 (d double(10,1));
create table t2 (d double(10,9));
insert into t1 values ("100000000.0");
insert into t2 values ("1.23456780");
create table t3 select * from t2 union select * from t1;
select * from t3;
show create table t3;
drop table t1, t2, t3;


#
# Bug #9855 (inconsistent column type for create select
#
create table t1 select  105213674794682365.00 + 0.0 x;
show warnings;
desc  t1;
drop table t1;

create table t1 select 0.0 x;
desc t1;
create table t2 select 105213674794682365.00 y;
desc t2;
create table t3 select x+y a from t1,t2;
show warnings;
desc t3;
drop table t1,t2,t3;

# End of 4.1 tests

#
# bug #12694 (float(m,d) specifications)
#

--error 1427
create table t1 (s1 float(0,2));
--error 1427
create table t1 (s1 float(1,2));