Sha256: 9b7240b5727fbb2b884a193b3a4484d3f91b6572891ea811e0810cdb45a715ff
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Size: 792 Bytes
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Stored size: 792 Bytes
Contents
module Alf
module Operator
module Relational
class Summarize
include Relational, Unary
signature do |s|
s.argument :by, AttrList, []
s.argument :summarization, Summarization, {}
s.option :allbut, Boolean, false, "Summarize on all but specified attributes?"
end
# (see Operator#compile)
def compile
if @allbut
Engine::Summarize::Hash.new(operand, by, summarization, allbut)
else
op = Engine::Sort.new(operand, by.to_ordering)
op = Engine::Summarize::Cesure.new(op, by, summarization, allbut)
op
end
end
end # class Summarize
end # module Relational
end # module Operator
end # module Alf
Version data entries
5 entries across 5 versions & 1 rubygems