This operator enriches tuples with information from the context store. Further Information can be found here. There is also an DBENRICH operator for fetching data from a database or a simple ENRICH that caches incoming streams.
ATTRIBUTES:The attributes from the store object, that should be used for enrichment
STORE:The name of the store
OUTER:Enriches with <null>, if the store is empty or (when outer is false) the input is discarded.