Class: ConceptQL::Nodes::Union

Inherits:
PassThru show all
Defined in:
lib/conceptql/nodes/union.rb

Constant Summary

Constants inherited from Node

Node::KNOWN_TYPES

Instance Attribute Summary

Attributes inherited from Node

#values

Instance Method Summary collapse

Methods inherited from PassThru

#types

Methods inherited from Node

#arguments, #children, #columns, #date_columns, #evaluate, #initialize, #select_it, #stream, #types

Constructor Details

This class inherits a constructor from ConceptQL::Nodes::Node

Instance Method Details

#query(db) ⇒ Object 



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# File 'lib/conceptql/nodes/union.rb', line 6

def query(db)
  values.map do |expression|
    expression.evaluate(db)
  end.inject do |q, query|
    q.union(query, all: true)
  end
end