func_math.test
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:3k
- #
- # Test of math functions
- #
- --disable_warnings
- drop table if exists t1;
- --enable_warnings
- select floor(5.5),floor(-5.5);
- explain extended select floor(5.5),floor(-5.5);
- select ceiling(5.5),ceiling(-5.5);
- explain extended select ceiling(5.5),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);
- 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);
- select round(5.5),round(-5.5);
- explain extended select round(5.5),round(-5.5);
- select round(5.64,1),round(5.64,2),round(5.64,-1),round(5.64,-2);
- select abs(-10), sign(-5), sign(5), sign(0);
- explain extended select abs(-10), sign(-5), sign(5), 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);
- 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);
- select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
- explain extended select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
- select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
- explain extended select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
- select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
- explain extended select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
- select pow(10,log10(10)),power(2,4);
- explain extended select pow(10,log10(10)),power(2,4);
- set @@rand_seed1=10000000,@@rand_seed2=1000000;
- select rand(999999),rand();
- explain extended select rand(999999),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);
- 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);
- select degrees(pi()),radians(360);
- #
- # Bug #2338 Trignometric arithmatic problems
- #
- SELECT ACOS(1.0);
- SELECT ASIN(1.0);
- SELECT ACOS(0.2*5.0);
- SELECT ACOS(0.5*2.0);
- SELECT ASIN(0.8+0.2);
- SELECT ASIN(1.2-0.2);
- #
- # Bug #3051 FLOOR returns invalid
- #
- # This can't be tested as it's not portable
- #select floor(log(4)/log(2));
- #select floor(log(8)/log(2));
- #select floor(log(16)/log(2));
- explain extended select degrees(pi()),radians(360);
- #
- # Bug #7281: problem with rand()
- #
- --error 1054
- select rand(rand);
- #
- # Bug #9837: problem with round()
- #
- create table t1 select round(1, 6);
- show create table t1;
- select * from t1;
- drop table t1;
- #
- # Bug #11402: abs() forces rest of calculation to unsigned
- #
- select abs(-2) * -2;
- #
- # Bug #6172 RAND(a) should only accept constant values as arguments
- #
- create table t1 (i int);
- insert into t1 values (1);
- --error 1210
- select rand(i) from t1;
- drop table t1;
- #
- # Bug #14009: use of abs() on null value causes problems with filesort
- #
- # InnoDB is required to reproduce the fault, but it is okay if we default to
- # MyISAM when testing.
- 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));
- drop table t1;
- # End of 4.1 tests