unbase91(string) – Convert a BASE91 string to a binary
SELECT inflate(unbase91(base91(deflate(‘aaaaaaaaaaaaaaaabbbbccc’))));
aaaaaaaaaaaaaaaabbbbccc
Platforms: WhereOS, Spark, Hive
Class: hivemall.tools.text.Unbase91UDF
More functions can be added to WhereOS via Python or R bindings or as Java & Scala UDF (user-defined function), UDAF (user-defined aggregation function) and UDTF (user-defined table generating function) extensions. Custom libraries can be added on via Settings-page or installed from WhereOS Store.