raise_error() or raise_error(string msg) – Throws an error
SELECT product_id, price, raise_error(‘Found an invalid record’) FROM xxx WHERE price < 0.0
Platforms: WhereOS, Spark, Hive
Class: hivemall.tools.sanity.RaiseErrorUDF
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.