mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
8d222210c7
floating point numbers Some math functions did not check if the result is a valid number (i.e. neither of +-inf or nan). Fixed by validating the result where necessary and returning NULL in case of invalid result.
430 lines
16 KiB
Plaintext
430 lines
16 KiB
Plaintext
drop table if exists t1;
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select floor(5.5),floor(-5.5);
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floor(5.5) floor(-5.5)
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5 -6
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explain extended select floor(5.5),floor(-5.5);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select floor(5.5) AS `floor(5.5)`,floor(-(5.5)) AS `floor(-5.5)`
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select ceiling(5.5),ceiling(-5.5);
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ceiling(5.5) ceiling(-5.5)
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6 -5
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explain extended select ceiling(5.5),ceiling(-5.5);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select ceiling(5.5) AS `ceiling(5.5)`,ceiling(-(5.5)) AS `ceiling(-5.5)`
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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);
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truncate(52.64,1) truncate(52.64,2) truncate(52.64,-1) truncate(52.64,-2) truncate(-52.64,1) truncate(-52.64,-1)
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52.6 52.64 50 0 -52.6 -50
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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);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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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)`
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select round(5.5),round(-5.5);
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round(5.5) round(-5.5)
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6 -6
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explain extended select round(5.5),round(-5.5);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select round(5.5,0) AS `round(5.5)`,round(-(5.5),0) AS `round(-5.5)`
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select round(5.64,1),round(5.64,2),round(5.64,-1),round(5.64,-2);
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round(5.64,1) round(5.64,2) round(5.64,-1) round(5.64,-2)
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5.6 5.64 10 0
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select abs(-10), sign(-5), sign(5), sign(0);
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abs(-10) sign(-5) sign(5) sign(0)
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10 -1 1 0
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explain extended select abs(-10), sign(-5), sign(5), sign(0);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select abs(-(10)) AS `abs(-10)`,sign(-(5)) AS `sign(-5)`,sign(5) AS `sign(5)`,sign(0) AS `sign(0)`
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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);
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log(exp(10)) exp(log(sqrt(10))*2) log(-1) log(NULL) log(1,1) log(3,9) log(-1,2) log(NULL,2)
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10 10 NULL NULL NULL 2 NULL NULL
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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);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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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)`
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select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
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ln(exp(10)) exp(ln(sqrt(10))*2) ln(-1) ln(0) ln(NULL)
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10 10 NULL NULL NULL
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explain extended select ln(exp(10)),exp(ln(sqrt(10))*2),ln(-1),ln(0),ln(NULL);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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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)`
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select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
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log2(8) log2(15) log2(-2) log2(0) log2(NULL)
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3 3.9068905956085 NULL NULL NULL
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explain extended select log2(8),log2(15),log2(-2),log2(0),log2(NULL);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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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)`
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select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
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log10(100) log10(18) log10(-4) log10(0) log10(NULL)
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2 1.2552725051033 NULL NULL NULL
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explain extended select log10(100),log10(18),log10(-4),log10(0),log10(NULL);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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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)`
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select pow(10,log10(10)),power(2,4);
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pow(10,log10(10)) power(2,4)
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10 16
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explain extended select pow(10,log10(10)),power(2,4);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select pow(10,log10(10)) AS `pow(10,log10(10))`,pow(2,4) AS `power(2,4)`
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set @@rand_seed1=10000000,@@rand_seed2=1000000;
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select rand(999999),rand();
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rand(999999) rand()
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0.014231365187309 0.028870999839968
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explain extended select rand(999999),rand();
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select rand(999999) AS `rand(999999)`,rand() AS `rand()`
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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);
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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)
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3.141593 1.000000 0.000000 0.000000 0.642093 1.570796 1.570796 0.785398
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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);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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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)`
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select degrees(pi()),radians(360);
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degrees(pi()) radians(360)
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180 6.2831853071796
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select format(atan(-2, 2), 6);
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format(atan(-2, 2), 6)
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-0.785398
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select format(atan(pi(), 0), 6);
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format(atan(pi(), 0), 6)
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1.570796
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select format(atan2(-2, 2), 6);
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format(atan2(-2, 2), 6)
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-0.785398
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select format(atan2(pi(), 0), 6);
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format(atan2(pi(), 0), 6)
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1.570796
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SELECT ACOS(1.0);
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ACOS(1.0)
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0
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SELECT ASIN(1.0);
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ASIN(1.0)
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1.5707963267949
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SELECT ACOS(0.2*5.0);
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ACOS(0.2*5.0)
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0
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SELECT ACOS(0.5*2.0);
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ACOS(0.5*2.0)
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0
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SELECT ASIN(0.8+0.2);
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ASIN(0.8+0.2)
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1.5707963267949
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SELECT ASIN(1.2-0.2);
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ASIN(1.2-0.2)
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1.5707963267949
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select format(4.55, 1), format(4.551, 1);
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format(4.55, 1) format(4.551, 1)
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4.6 4.6
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explain extended select degrees(pi()),radians(360);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select degrees(pi()) AS `degrees(pi())`,radians(360) AS `radians(360)`
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select rand(rand);
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ERROR 42S22: Unknown column 'rand' in 'field list'
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create table t1 (col1 int, col2 decimal(60,30));
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insert into t1 values(1,1234567890.12345);
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select format(col2,7) from t1;
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format(col2,7)
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1,234,567,890.1234500
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select format(col2,8) from t1;
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format(col2,8)
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1,234,567,890.12345000
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insert into t1 values(7,1234567890123456.12345);
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select format(col2,6) from t1 where col1=7;
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format(col2,6)
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1,234,567,890,123,456.123450
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drop table t1;
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select ceil(0.09);
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ceil(0.09)
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1
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select ceil(0.000000000000000009);
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ceil(0.000000000000000009)
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1
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create table t1 select round(1, 6);
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`round(1, 6)` int(1) NOT NULL DEFAULT '0'
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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select * from t1;
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round(1, 6)
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1
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drop table t1;
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select abs(-2) * -2;
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abs(-2) * -2
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-4
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CREATE TABLE t1 (a INT);
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INSERT INTO t1 VALUES (1),(1),(1),(2);
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SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(a) * 1000 AS UNSIGNED)
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FROM t1;
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CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(a) * 1000 AS UNSIGNED)
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656 405
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122 405
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645 405
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858 656
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SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(a) * 1000 AS UNSIGNED)
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FROM t1 WHERE a = 1;
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CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(a) * 1000 AS UNSIGNED)
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656 405
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122 405
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645 405
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INSERT INTO t1 VALUES (3);
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SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(a) * 1000 AS UNSIGNED)
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FROM t1;
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CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(a) * 1000 AS UNSIGNED)
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656 405
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122 405
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645 405
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858 656
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354 906
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SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(a) * 1000 AS UNSIGNED)
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FROM t1 WHERE a = 1;
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CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(a) * 1000 AS UNSIGNED)
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656 405
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122 405
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645 405
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PREPARE stmt FROM
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"SELECT CAST(RAND(2) * 1000 AS UNSIGNED), CAST(RAND(?) * 1000 AS UNSIGNED)
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FROM t1 WHERE a = 1";
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set @var=2;
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EXECUTE stmt USING @var;
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CAST(RAND(2) * 1000 AS UNSIGNED) CAST(RAND(?) * 1000 AS UNSIGNED)
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656 656
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122 122
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645 645
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DROP TABLE t1;
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create table t1 (a varchar(90), ts datetime not null, index (a)) engine=innodb default charset=utf8;
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insert into t1 values ('http://www.foo.com/', now());
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select a from t1 where a='http://www.foo.com/' order by abs(timediff(ts, 0));
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a
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http://www.foo.com/
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drop table t1;
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set sql_mode='traditional';
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select ln(-1);
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ln(-1)
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NULL
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Warnings:
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Error 1365 Division by 0
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select log10(-1);
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log10(-1)
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NULL
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Warnings:
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Error 1365 Division by 0
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select log2(-1);
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log2(-1)
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NULL
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Warnings:
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Error 1365 Division by 0
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select log(2,-1);
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log(2,-1)
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NULL
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Warnings:
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Error 1365 Division by 0
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select log(-2,1);
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log(-2,1)
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NULL
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Warnings:
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Error 1365 Division by 0
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set sql_mode='';
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select round(111,-10);
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round(111,-10)
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0
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select round(-5000111000111000155,-1);
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round(-5000111000111000155,-1)
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-5000111000111000160
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select round(15000111000111000155,-1);
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round(15000111000111000155,-1)
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15000111000111000160
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select truncate(-5000111000111000155,-1);
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truncate(-5000111000111000155,-1)
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-5000111000111000150
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select truncate(15000111000111000155,-1);
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truncate(15000111000111000155,-1)
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15000111000111000150
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set names utf8;
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create table t1
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(f1 varchar(32) not null,
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f2 smallint(5) unsigned not null,
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f3 int(10) unsigned not null default '0')
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engine=myisam default charset=utf8;
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insert into t1 values ('zombie',0,0),('gold',1,10000),('silver',2,10000);
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create table t2
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(f1 int(10) unsigned not null,
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f2 int(10) unsigned not null,
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f3 smallint(5) unsigned not null)
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engine=myisam default charset=utf8;
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insert into t2 values (16777216,16787215,1),(33554432,33564431,2);
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select format(t2.f2-t2.f1+1,0) from t1,t2
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where t1.f2 = t2.f3 order by t1.f1;
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format(t2.f2-t2.f1+1,0)
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10,000
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10,000
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drop table t1, t2;
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set names default;
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select cast(-2 as unsigned), 18446744073709551614, -2;
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cast(-2 as unsigned) 18446744073709551614 -2
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18446744073709551614 18446744073709551614 -2
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select abs(cast(-2 as unsigned)), abs(18446744073709551614), abs(-2);
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abs(cast(-2 as unsigned)) abs(18446744073709551614) abs(-2)
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18446744073709551614 18446744073709551614 2
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select ceiling(cast(-2 as unsigned)), ceiling(18446744073709551614), ceiling(-2);
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ceiling(cast(-2 as unsigned)) ceiling(18446744073709551614) ceiling(-2)
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18446744073709551614 18446744073709551614 -2
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select floor(cast(-2 as unsigned)), floor(18446744073709551614), floor(-2);
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floor(cast(-2 as unsigned)) floor(18446744073709551614) floor(-2)
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18446744073709551614 18446744073709551614 -2
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select format(cast(-2 as unsigned), 2), format(18446744073709551614, 2), format(-2, 2);
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format(cast(-2 as unsigned), 2) format(18446744073709551614, 2) format(-2, 2)
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18,446,744,073,709,551,614.00 18,446,744,073,709,551,614.00 -2.00
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select sqrt(cast(-2 as unsigned)), sqrt(18446744073709551614), sqrt(-2);
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sqrt(cast(-2 as unsigned)) sqrt(18446744073709551614) sqrt(-2)
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4294967296 4294967296 NULL
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select round(cast(-2 as unsigned), 1), round(18446744073709551614, 1), round(-2, 1);
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round(cast(-2 as unsigned), 1) round(18446744073709551614, 1) round(-2, 1)
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18446744073709551614 18446744073709551614 -2
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select round(4, cast(-2 as unsigned)), round(4, 18446744073709551614), round(4, -2);
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round(4, cast(-2 as unsigned)) round(4, 18446744073709551614) round(4, -2)
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4 4 0
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select truncate(cast(-2 as unsigned), 1), truncate(18446744073709551614, 1), truncate(-2, 1);
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truncate(cast(-2 as unsigned), 1) truncate(18446744073709551614, 1) truncate(-2, 1)
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18446744073709551614 18446744073709551614 -2
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select truncate(4, cast(-2 as unsigned)), truncate(4, 18446744073709551614), truncate(4, -2);
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truncate(4, cast(-2 as unsigned)) truncate(4, 18446744073709551614) truncate(4, -2)
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4 4 0
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select round(10000000000000000000, -19), truncate(10000000000000000000, -19);
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round(10000000000000000000, -19) truncate(10000000000000000000, -19)
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10000000000000000000 10000000000000000000
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select round(1e0, -309), truncate(1e0, -309);
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round(1e0, -309) truncate(1e0, -309)
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0 0
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select round(1e1,308), truncate(1e1, 308);
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round(1e1,308) truncate(1e1, 308)
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10 10
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select round(1e1, 2147483648), truncate(1e1, 2147483648);
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round(1e1, 2147483648) truncate(1e1, 2147483648)
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10 10
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select round(1.1e1, 4294967295), truncate(1.1e1, 4294967295);
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round(1.1e1, 4294967295) truncate(1.1e1, 4294967295)
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11 11
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select round(1.12e1, 4294967296), truncate(1.12e1, 4294967296);
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round(1.12e1, 4294967296) truncate(1.12e1, 4294967296)
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11.2 11.2
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select round(1.5, 2147483640), truncate(1.5, 2147483640);
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round(1.5, 2147483640) truncate(1.5, 2147483640)
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1.500000000000000000000000000000 1.500000000000000000000000000000
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select round(1.5, -2147483649), round(1.5, 2147483648);
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round(1.5, -2147483649) round(1.5, 2147483648)
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0 1.500000000000000000000000000000
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select truncate(1.5, -2147483649), truncate(1.5, 2147483648);
|
|
truncate(1.5, -2147483649) truncate(1.5, 2147483648)
|
|
0 1.500000000000000000000000000000
|
|
select round(1.5, -4294967296), round(1.5, 4294967296);
|
|
round(1.5, -4294967296) round(1.5, 4294967296)
|
|
0 1.500000000000000000000000000000
|
|
select truncate(1.5, -4294967296), truncate(1.5, 4294967296);
|
|
truncate(1.5, -4294967296) truncate(1.5, 4294967296)
|
|
0 1.500000000000000000000000000000
|
|
select round(1.5, -9223372036854775808), round(1.5, 9223372036854775808);
|
|
round(1.5, -9223372036854775808) round(1.5, 9223372036854775808)
|
|
0 1.500000000000000000000000000000
|
|
select truncate(1.5, -9223372036854775808), truncate(1.5, 9223372036854775808);
|
|
truncate(1.5, -9223372036854775808) truncate(1.5, 9223372036854775808)
|
|
0 1.500000000000000000000000000000
|
|
select round(1.5, 18446744073709551615), truncate(1.5, 18446744073709551615);
|
|
round(1.5, 18446744073709551615) truncate(1.5, 18446744073709551615)
|
|
1.500000000000000000000000000000 1.500000000000000000000000000000
|
|
select round(18446744073709551614, -1), truncate(18446744073709551614, -1);
|
|
round(18446744073709551614, -1) truncate(18446744073709551614, -1)
|
|
18446744073709551610 18446744073709551610
|
|
select round(4, -4294967200), truncate(4, -4294967200);
|
|
round(4, -4294967200) truncate(4, -4294967200)
|
|
0 0
|
|
select mod(cast(-2 as unsigned), 3), mod(18446744073709551614, 3), mod(-2, 3);
|
|
mod(cast(-2 as unsigned), 3) mod(18446744073709551614, 3) mod(-2, 3)
|
|
2 2 -2
|
|
select mod(5, cast(-2 as unsigned)), mod(5, 18446744073709551614), mod(5, -2);
|
|
mod(5, cast(-2 as unsigned)) mod(5, 18446744073709551614) mod(5, -2)
|
|
5 5 1
|
|
select pow(cast(-2 as unsigned), 5), pow(18446744073709551614, 5), pow(-2, 5);
|
|
pow(cast(-2 as unsigned), 5) pow(18446744073709551614, 5) pow(-2, 5)
|
|
2.1359870359209e+96 2.1359870359209e+96 -32
|
|
CREATE TABLE t1 (a timestamp, b varchar(20), c bit(1));
|
|
INSERT INTO t1 VALUES('1998-09-23', 'str1', 1), ('2003-03-25', 'str2', 0);
|
|
SELECT a DIV 900 y FROM t1 GROUP BY y;
|
|
y
|
|
22201025555
|
|
22255916666
|
|
SELECT DISTINCT a DIV 900 y FROM t1;
|
|
y
|
|
22201025555
|
|
22255916666
|
|
SELECT b DIV 900 y FROM t1 GROUP BY y;
|
|
y
|
|
0
|
|
SELECT c DIV 900 y FROM t1 GROUP BY y;
|
|
y
|
|
0
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1(a LONGBLOB);
|
|
INSERT INTO t1 VALUES('1'),('2'),('3');
|
|
SELECT DISTINCT (a DIV 254576881) FROM t1;
|
|
(a DIV 254576881)
|
|
0
|
|
SELECT (a DIV 254576881) FROM t1 UNION ALL
|
|
SELECT (a DIV 254576881) FROM t1;
|
|
(a DIV 254576881)
|
|
0
|
|
0
|
|
0
|
|
0
|
|
0
|
|
0
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1(a SET('a','b','c'));
|
|
INSERT INTO t1 VALUES ('a');
|
|
SELECT a DIV 2 FROM t1 UNION SELECT a DIV 2 FROM t1;
|
|
a DIV 2
|
|
0
|
|
DROP TABLE t1;
|
|
End of 5.0 tests
|
|
SELECT 1e308 + 1e308;
|
|
1e308 + 1e308
|
|
NULL
|
|
SELECT -1e308 - 1e308;
|
|
-1e308 - 1e308
|
|
NULL
|
|
SELECT 1e300 * 1e300;
|
|
1e300 * 1e300
|
|
NULL
|
|
SELECT 1e300 / 1e-300;
|
|
1e300 / 1e-300
|
|
NULL
|
|
SELECT EXP(750);
|
|
EXP(750)
|
|
NULL
|
|
SELECT POW(10, 309);
|
|
POW(10, 309)
|
|
NULL
|
|
End of 5.1 tests
|