Apache Tajo - sign(x)
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Let us now check the sign(x) function with the following query.
Query
default> select sign(4) as signum;
Result
The above query will generate the following result.
signum ------------------------------- 1.0
Here, the signum value is 4 which is greater than 0. So, the result is 1. If the value is <0 then result will be -1.
apache_tajo_math_functions.htm
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