method

build_count_subquery?

v8.1.1 - Show latest stable - 0 notes - Class: ActiveRecord::Calculations

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build_count_subquery?(operation, column_name, distinct) private

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# File activerecord/lib/active_record/relation/calculations.rb, line 668
      def build_count_subquery?(operation, column_name, distinct)
        # SQLite and older MySQL does not support `COUNT DISTINCT` with `*` or
        # multiple columns, so we need to use subquery for this.
        operation == "count" &&
          (((column_name == :all || select_values.many?) && distinct) || has_limit_or_offset?)
      end

build_count_subquery?

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