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map_include_keys

map_include_keys(Map map, array filteringKeys) – Returns the filtered entries of a map having specified keys

SELECT map_include_keys(map(1,’one’,2,’two’,3,’three’),array(2,3));
{2:”two”,3:”three”}

Platforms: WhereOS, Spark, Hive

Class: hivemall.tools.map.MapIncludeKeysUDF

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.

View the complete guide of WhereOS functions.

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map_include_keys

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