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mariadb/mysql-test/r/func_math.result
gunnar@mysql.com. 001224c09d item_func.cc: 
fix for bug#8461

  BUG 8461 - TRUNCATE returns incorrect result if 2nd argument is negative
  Reason: Both TRUNCATE/ROUND converts INTEGERS to DOUBLE and back to INTEGERS
  Changed the integer routine to work on integers only.
  This bug affects 4.1, 5.0 and 5.1
  Fixing in 4.1 will need to change the routine to handle different types individually.
  5.0 did had different routines for different types already just the INTEGER routine was bad.
2006-02-07 13:26:35 +01:00

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drop table if exists t1;
select floor(5.5),floor(-5.5);
floor(5.5) floor(-5.5)
5 -6
explain extended select floor(5.5),floor(-5.5);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select floor(5.5) AS `floor(5.5)`,floor(-(5.5)) AS `floor(-5.5)`
select ceiling(5.5),ceiling(-5.5);
ceiling(5.5) ceiling(-5.5)
6 -5
explain extended select ceiling(5.5),ceiling(-5.5);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ceiling(5.5) AS `ceiling(5.5)`,ceiling(-(5.5)) AS `ceiling(-5.5)`
select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2), truncate(-52.64,1),truncate(-52.64,-1);
truncate(52.64,1) truncate(52.64,2) truncate(52.64,-1) truncate(52.64,-2) truncate(-52.64,1) truncate(-52.64,-1)
52.6 52.64 50 0 -52.6 -50
explain extended select truncate(52.64,1),truncate(52.64,2),truncate(52.64,-1),truncate(52.64,-2), truncate(-52.64,1),truncate(-52.64,-1);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select truncate(52.64,1) AS `truncate(52.64,1)`,truncate(52.64,2) AS `truncate(52.64,2)`,truncate(52.64,-(1)) AS `truncate(52.64,-1)`,truncate(52.64,-(2)) AS `truncate(52.64,-2)`,truncate(-(52.64),1) AS `truncate(-52.64,1)`,truncate(-(52.64),-(1)) AS `truncate(-52.64,-1)`
select round(5.5),round(-5.5);
round(5.5) round(-5.5)
6 -6
explain extended select round(5.5),round(-5.5);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select round(5.5,0) AS `round(5.5)`,round(-(5.5),0) AS `round(-5.5)`
select round(5.64,1),round(5.64,2),round(5.64,-1),round(5.64,-2);
round(5.64,1) round(5.64,2) round(5.64,-1) round(5.64,-2)
5.6 5.64 10 0
select abs(-10), sign(-5), sign(5), sign(0);
abs(-10) sign(-5) sign(5) sign(0)
10 -1 1 0
explain extended select abs(-10), sign(-5), sign(5), sign(0);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select abs(-(10)) AS `abs(-10)`,sign(-(5)) AS `sign(-5)`,sign(5) AS `sign(5)`,sign(0) AS `sign(0)`
select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
log(exp(10)) exp(log(sqrt(10))*2) log(-1) log(NULL) log(1,1) log(3,9) log(-1,2) log(NULL,2)
10 10 NULL NULL NULL 2 NULL NULL
explain extended select log(exp(10)),exp(log(sqrt(10))*2),log(-1),log(NULL),log(1,1),log(3,9),log(-1,2),log(NULL,2);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log(exp(10)) AS `log(exp(10))`,exp((log(sqrt(10)) * 2)) AS `exp(log(sqrt(10))*2)`,log(-(1)) AS `log(-1)`,log(NULL) AS `log(NULL)`,log(1,1) AS `log(1,1)`,log(3,9) AS `log(3,9)`,log(-(1),2) AS `log(-1,2)`,log(NULL,2) AS `log(NULL,2)`
select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
ln(exp(10)) exp(ln(sqrt(10))*2) ln(-1) ln(0) ln(NULL)
10 10 NULL NULL NULL
explain extended select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select ln(exp(10)) AS `ln(exp(10))`,exp((ln(sqrt(10)) * 2)) AS `exp(ln(sqrt(10))*2)`,ln(-(1)) AS `ln(-1)`,ln(0) AS `ln(0)`,ln(NULL) AS `ln(NULL)`
select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
log2(8) log2(15) log2(-2) log2(0) log2(NULL)
3 3.9068905956085 NULL NULL NULL
explain extended select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log2(8) AS `log2(8)`,log2(15) AS `log2(15)`,log2(-(2)) AS `log2(-2)`,log2(0) AS `log2(0)`,log2(NULL) AS `log2(NULL)`
select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
log10(100) log10(18) log10(-4) log10(0) log10(NULL)
2 1.2552725051033 NULL NULL NULL
explain extended select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select log10(100) AS `log10(100)`,log10(18) AS `log10(18)`,log10(-(4)) AS `log10(-4)`,log10(0) AS `log10(0)`,log10(NULL) AS `log10(NULL)`
select pow(10,log10(10)),power(2,4);
pow(10,log10(10)) power(2,4)
10 16
explain extended select pow(10,log10(10)),power(2,4);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select pow(10,log10(10)) AS `pow(10,log10(10))`,pow(2,4) AS `power(2,4)`
set @@rand_seed1=10000000,@@rand_seed2=1000000;
select rand(999999),rand();
rand(999999) rand()
0.014231365187309 0.028870999839968
explain extended select rand(999999),rand();
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select sql_no_cache rand(999999) AS `rand(999999)`,rand() AS `rand()`
select pi(),format(sin(pi()/2),6),format(cos(pi()/2),6),format(abs(tan(pi())),6),format(cot(1),6),format(asin(1),6),format(acos(0),6),format(atan(1),6);
pi() format(sin(pi()/2),6) format(cos(pi()/2),6) format(abs(tan(pi())),6) format(cot(1),6) format(asin(1),6) format(acos(0),6) format(atan(1),6)
3.141593 1.000000 0.000000 0.000000 0.642093 1.570796 1.570796 0.785398
explain extended select pi(),format(sin(pi()/2),6),format(cos(pi()/2),6),format(abs(tan(pi())),6),format(cot(1),6),format(asin(1),6),format(acos(0),6),format(atan(1),6);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select pi() AS `pi()`,format(sin((pi() / 2)),6) AS `format(sin(pi()/2),6)`,format(cos((pi() / 2)),6) AS `format(cos(pi()/2),6)`,format(abs(tan(pi())),6) AS `format(abs(tan(pi())),6)`,format((1 / tan(1)),6) AS `format(cot(1),6)`,format(asin(1),6) AS `format(asin(1),6)`,format(acos(0),6) AS `format(acos(0),6)`,format(atan(1),6) AS `format(atan(1),6)`
select degrees(pi()),radians(360);
degrees(pi()) radians(360)
180 6.2831853071796
SELECT ACOS(1.0);
ACOS(1.0)
0
SELECT ASIN(1.0);
ASIN(1.0)
1.5707963267949
SELECT ACOS(0.2*5.0);
ACOS(0.2*5.0)
0
SELECT ACOS(0.5*2.0);
ACOS(0.5*2.0)
0
SELECT ASIN(0.8+0.2);
ASIN(0.8+0.2)
1.5707963267949
SELECT ASIN(1.2-0.2);
ASIN(1.2-0.2)
1.5707963267949
select format(4.55, 1), format(4.551, 1);
format(4.55, 1) format(4.551, 1)
4.6 4.6
explain extended select degrees(pi()),radians(360);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select degrees(pi()) AS `degrees(pi())`,radians(360) AS `radians(360)`
select rand(rand);
ERROR 42S22: Unknown column 'rand' in 'field list'
create table t1 (col1 int, col2 decimal(60,30));
insert into t1 values(1,1234567890.12345);
select format(col2,7) from t1;
format(col2,7)
1,234,567,890.1234500
select format(col2,8) from t1;
format(col2,8)
1,234,567,890.12345000
insert into t1 values(7,1234567890123456.12345);
select format(col2,6) from t1 where col1=7;
format(col2,6)
1,234,567,890,123,456.123450
drop table t1;
select round(150, 2);
round(150, 2)
150.00
select ceil(0.09);
ceil(0.09)
1
select ceil(0.000000000000000009);
ceil(0.000000000000000009)
1
create table t1 select round(1, 6);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`round(1, 6)` decimal(7,6) NOT NULL default '0.000000'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
select * from t1;
round(1, 6)
1.000000
drop table t1;
select abs(-2) * -2;
abs(-2) * -2
-4
create table t1 (i int);
insert into t1 values (1);
select rand(i) from t1;
ERROR HY000: Incorrect arguments to RAND
drop table t1;
create table t1 (a varchar(90), ts datetime not null, index (a)) engine=innodb default charset=utf8;
insert into t1 values ('http://www.foo.com/', now());
select a from t1 where a='http://www.foo.com/' order by abs(timediff(ts, 0));
a
http://www.foo.com/
drop table t1;
set sql_mode='traditional';
select ln(-1);
ln(-1)
NULL
Warnings:
Error 1365 Division by 0
select log10(-1);
log10(-1)
NULL
Warnings:
Error 1365 Division by 0
select log2(-1);
log2(-1)
NULL
Warnings:
Error 1365 Division by 0
select log(2,-1);
log(2,-1)
NULL
Warnings:
Error 1365 Division by 0
select log(-2,1);
log(-2,1)
NULL
Warnings:
Error 1365 Division by 0
set sql_mode='';
select round(111,-10);
round(111,-10)
0
select round(-5000111000111000155,-1);
round(-5000111000111000155,-1)
-5000111000111000160
select round(15000111000111000155,-1);
round(15000111000111000155,-1)
15000111000111000160
select truncate(-5000111000111000155,-1);
truncate(-5000111000111000155,-1)
-5000111000111000150
select truncate(15000111000111000155,-1);
truncate(15000111000111000155,-1)
15000111000111000150
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