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https://github.com/MariaDB/server.git
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bebcb22183
When calculating the result length of an integer DIV function the number of decimals was used without checking the result type first. Thus an uninitialized number of decimals was used for some types. This caused an excessive amount of memory to be allocated for the field's buffer and crashed the server. Fixed by using the number of decimals only for data types that can have decimals and thus have valid decimals number. mysql-test/r/func_math.result: Bug #30587: test case mysql-test/t/func_math.test: Bug #30587: test case sql/item_func.cc: Bug #30587: Don't use decimals on a type that doesn't have them.
372 lines
15 KiB
Plaintext
372 lines
15 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 Extra
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1 SIMPLE 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 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 Extra
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1 SIMPLE 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 (i int);
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insert into t1 values (1);
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select rand(i) from t1;
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ERROR HY000: Incorrect arguments to RAND
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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);
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truncate(1.5, -2147483649) truncate(1.5, 2147483648)
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0 1.500000000000000000000000000000
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select round(1.5, -4294967296), round(1.5, 4294967296);
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round(1.5, -4294967296) round(1.5, 4294967296)
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0 1.500000000000000000000000000000
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select truncate(1.5, -4294967296), truncate(1.5, 4294967296);
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truncate(1.5, -4294967296) truncate(1.5, 4294967296)
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0 1.500000000000000000000000000000
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select round(1.5, -9223372036854775808), round(1.5, 9223372036854775808);
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round(1.5, -9223372036854775808) round(1.5, 9223372036854775808)
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0 1.500000000000000000000000000000
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select truncate(1.5, -9223372036854775808), truncate(1.5, 9223372036854775808);
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truncate(1.5, -9223372036854775808) truncate(1.5, 9223372036854775808)
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0 1.500000000000000000000000000000
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select round(1.5, 18446744073709551615), truncate(1.5, 18446744073709551615);
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round(1.5, 18446744073709551615) truncate(1.5, 18446744073709551615)
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1.500000000000000000000000000000 1.500000000000000000000000000000
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select round(18446744073709551614, -1), truncate(18446744073709551614, -1);
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round(18446744073709551614, -1) truncate(18446744073709551614, -1)
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18446744073709551610 18446744073709551610
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select round(4, -4294967200), truncate(4, -4294967200);
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round(4, -4294967200) truncate(4, -4294967200)
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0 0
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select mod(cast(-2 as unsigned), 3), mod(18446744073709551614, 3), mod(-2, 3);
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mod(cast(-2 as unsigned), 3) mod(18446744073709551614, 3) mod(-2, 3)
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2 2 -2
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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;
|
|
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
|
def y y 8 19 11 Y 32800 0 63
|
|
y
|
|
22201025555
|
|
22255916666
|
|
SELECT DISTINCT a DIV 900 y FROM t1;
|
|
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
|
def y y 8 19 11 Y 32800 0 63
|
|
y
|
|
22201025555
|
|
22255916666
|
|
SELECT b DIV 900 y FROM t1 GROUP BY y;
|
|
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
|
def y y 8 20 1 Y 32768 0 63
|
|
y
|
|
0
|
|
SELECT c DIV 900 y FROM t1 GROUP BY y;
|
|
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
|
def y y 3 1 1 Y 32800 0 63
|
|
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
|