initial_count_for

# File activerecord/lib/active_record/associations/alias_tracker.rb, line 51
        def initial_count_for(name)
          return 0 if Arel::Table === table_joins

          # quoted_name should be downcased as some database adapters (Oracle) return quoted name in uppercase
          quoted_name = connection.quote_table_name(name).downcase

          counts = table_joins.map do |join|
            if join.is_a?(Arel::Nodes::StringJoin)
              # Table names + table aliases
              join.left.downcase.scan(
                /join(?:\s+\w+)?\s+(\S+\s+)?#{quoted_name}\son/
              ).size
            else
              join.left.table_name == name ? 1 : 0
            end
          end

          counts.sum
        end