set hive.fetch.task.conversion=more; use default; -- Test map_values() UDF DESCRIBE FUNCTION map_values; DESCRIBE FUNCTION EXTENDED map_values; -- Evaluate function against STRING valued values SELECT map_values(map(1, "a", 2, "b", 3, "c")) FROM src tablesample (1 rows); -- Evaluate function against INT valued keys SELECT map_values(map("a", 1, "b", 2, "c", 3)) FROM src tablesample (1 rows);