sumKahan
Calculates the sum of the numbers with Kahan compensated summation algorithm
Slower than sum function.
The compensation works only for Float types.
Syntax
sumKahan(x)
Arguments
Returned value
Example
Query:
SELECT sum(0.1), sumKahan(0.1) FROM numbers(10);
Result:
┌───────────sum(0.1)─┬─sumKahan(0.1)─┐
│ 0.9999999999999999 │ 1 │
└────────────────────┴───────────────┘
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