@@ -0,0 +1,373 @@
+package org.fukata.hive.udf;%0A%0Aimport org.apache.hadoop.hive.ql.exec.Description;%0Aimport org.apache.hadoop.hive.ql.exec.UDF;%0A%0A@Description(name = %22map_value_string%22, value = %22_FUNC_(map, keys) - extract value from map%22)%0Apublic class MapValueString extends MapValue %7B%0A    public String evaluate (Object map, Object...keys) %7B%0A        return super.evaluate(map, keys);%0A    %7D%0A%7D%0A

add MapValueString