Method: NoSE::Plans::QueryState#initialize

Defined in:
lib/nose/plans/query_planner.rb

#initialize(query, model) ⇒ QueryState

Returns a new instance of QueryState.



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# File 'lib/nose/plans/query_planner.rb', line 14

def initialize(query, model)
  @query = query
  @model = model
  @fields = query.select
  @eq = query.eq_fields.dup
  @range = query.range_field
  @graph = query.graph
  @joins = query.materialize_view.graph.join_order(@eq)
  @order_by = query.order.dup

  # We never need to order by fields listed in equality predicates
  # since we'll only ever have rows with a single value
  @order_by -= @eq.to_a

  @cardinality = 1 # this will be updated on the first index lookup
  @hash_cardinality = 1
  @given_fields = @eq.dup
end