normalize_unicode
normalize_unicode(string str [, string form]) – Transforms `str` with the specified normalization form. The `form`
nan
nan() – Returns the constant representing not-a-number. SELECT nan(), is_nan(nan()); NaN true Platforms: WhereOS, Spark,
nanvl
nanvl(expr1, expr2) – Returns `expr1` if it’s not NaN, or `expr2` otherwise. Platforms: WhereOS, Spark,
ndcg
ndcg(array rankItems, array correctItems [, const int recommendSize = rankItems.size]) – Returns nDCG Platforms: WhereOS,
negative
negative(expr) – Returns the negated value of `expr`. Platforms: WhereOS, Spark, Hive Class: org.apache.spark.sql.catalyst.expressions.UnaryMinus More
mse
mse(double predicted, double actual) – Return a Mean Squared Error Platforms: WhereOS, Spark, Hive Class:
