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)`
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)`
id select_type table type possible_keys key key_len ref rows filtered Extra
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
...
@@ -85,7 +85,7 @@ Note 1003 select pow(10,log10(10)) AS `pow(10,log10(10))`,pow(2,4) AS `power(2,4
...
@@ -85,7 +85,7 @@ 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;
set @@rand_seed1=10000000,@@rand_seed2=1000000;
select rand(999999),rand();
select rand(999999),rand();
rand(999999) rand()
rand(999999) rand()
0.014231365187309 0.028870999839968
0.0142313651873091 0.028870999839968
explain extended select rand(999999),rand();
explain extended select rand(999999),rand();
id select_type table type possible_keys key key_len ref rows filtered Extra
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
...
@@ -101,7 +101,7 @@ Warnings:
...
@@ -101,7 +101,7 @@ 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)`
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)`