Database : berlintest
Restore  : NO


Operator : filter
Number   : 1
Signature: ((stream x) (map x bool)) -> (stream x)
Example  : query Orte feed filter[.BevT > 200] count
Result   : 39


Operator : extend
Number   : 1
Signature: (stream(tuple(x)) x [(a1, (tuple(x) -> d1)) ... (an, (tuple(x) -> dn))] -> stream(tuple(x@[a1:d1, ... , an:dn])))
Example  : query ten feed extend [Mult5: .No * 5, Mod2 : .No mod 2] sum[Mult5]
Result   : 275

Operator : executeQuery
Number   : 1
Signature: ()
Example  : query 5 * 3
Result   : 15