union_map(x) – Returns a map which contains the union of an aggregation of maps Platforms:

unbase64(str) – Converts the argument from a base 64 string `str` to a binary. Platforms:

unbase91(string) – Convert a BASE91 string to a binary SELECT inflate(unbase91(base91(deflate(‘aaaaaaaaaaaaaaaabbbbccc’)))); aaaaaaaaaaaaaaaabbbbccc Platforms: WhereOS, Spark,

unbits(long[] bitset) – Returns an long array of the give bitset representation SELECT unbits(to_bits(array(1,4,2,3))); [1,2,3,4]

ucase(str) – Returns `str` with all characters changed to uppercase. Platforms: WhereOS, Spark, Hive Class:

udfarrayconcat(values) – Concatenates the array arguments Platforms: WhereOS, Spark, Hive Class: com.whereos.udf.UDFArrayConcat More functions can