Sha256: f95111840e9a11cd50731bc44f218b030d2574bb397b19d3a187da95d8afc5b8
Contents?: true
Size: 468 Bytes
Versions: 5
Compression:
Stored size: 468 Bytes
Contents
module Alf
module Algebra
class Union
include Operator
include Relational
include Binary
signature do |s|
end
def heading
@heading ||= left.heading + right.heading
end
def keys
@keys ||= Keys[ heading.to_attr_list ]
end
private
def _type_check(options)
same_heading!(left.heading, right.heading)
end
end # class Union
end # module Algebra
end # module Alf
Version data entries
5 entries across 5 versions & 1 rubygems