array_concat(array x1, array x2, ..) – Returns a concatenated array
SELECT array_concat(array(1),array(2,3));
[1,2,3]
Platforms: WhereOS, Spark, Hive
Class: hivemall.tools.array.ArrayConcatUDF
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.