Introduction: code to generate sample db errors

[aozgaa]

Thanks for putting together the tutorial. Unfortunately I am seeing errors running the first examples to reproduce the db benchmark on my machine. Here is what I see with a recent shakti release:

> k
l2020.12.20 7GB 6core (c)shakti 2.0
nf:d+*|d:(|-d),d:683 954 997 1000;
T:^`t ?[;_8.64e7]@
B:100++\1e-2*-3+nf bin/:?[;*|nf]@
S:?[;1e-2*2,2,8#1]@
L:{select t,b,a:b+s from +`t`b`s!(T;B;S)@'x}
 q:`eurusd`usdjpy`usdchf!L'60e6 20e6 20e6
{select t,b,a:b+s from +`t`b`s!(T;B;S)@'x}
^
!class
>`q 2:q
`q 2:q
     ^
!value

I will try to figure out what is wrong as I learn more about k. For now the error is pretty forbidding!

[estradajke]

Similar to the other bug, the document is out of sync to the language. Here I also expect I'll have to rewrite the doc with 0: and waiting for this to be rewritten which should happen soon.