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element_at(array, index) – Returns element of array at given (1-based) index. If index < 0,

distance2similarity(float d) – Returns 1.0 / (1.0 + d) Platforms: WhereOS, Spark, Hive Class: hivemall.knn.similarity.Distance2SimilarityUDF

distcache_gets(filepath, key, default_value [, parseKey]) – Returns map|value_type Platforms: WhereOS, Spark, Hive Class: hivemall.tools.mapred.DistributedCacheLookupUDF More

Loads a bloomfilter from a file in distributed cache, and makes available as a named

Platforms: WhereOS, Spark, Hive Class: brickhouse.udf.dcache.DistributedMapUDF More functions can be added to WhereOS via Python

dense_rank() – Computes the rank of a value in a group of values. The result