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secondo/Algebras/Groupby/Groupby.examples

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2026-01-23 17:03:45 +08:00
Database : opt
Restore : NO
Operator : groupby2
Number : 1
Signature: stream(Tuple) x AttrList x (NewAttr-1 x (Tuple x Data -> Data) x Data) .. (NewAttr-j x (Tuple x Data -> Data) x Data) -> stream(Tuple(Attrlist) o Tuple([NewAttr-1: Data]..[NewAttr-j: Data])
Example : query plz feed filter[.Ort = "Dresden"] groupby2[PLZ; AnzOrte: fun(t:TUPLE, i:int) i + 1::0] count
Result : 146