Github user ravipesala commented on the issue:
https://github.com/apache/incubator-carbondata/pull/491
@phalodi It is not good to add regular udf in carbon module unless
carbondata wants it for some other features. What ever the functions available
in spark we support the same and user can use the same functions. Carbondata
does not require to document about Spark functions, user can refer the
documentation of Spark for the same.
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