SELECT calls_costs.created, SUM(calls_costs.amount_cost) FROM (
  SELECT calls.created created,
    CASE WHEN calls.use_call_cost = FALSE THEN
              SUM(calls.duration) * calls.COST
         WHEN calls.use_call_cost = TRUE THEN
              COUNT(calls.COST) * calls.COST
    END AS amount_cost,
  calls.COST AS COST
  FROM (
    SELECT DISTINCT * FROM
    (
      SELECT
        DATE_TRUNC('day', "Timestamp") AS created,
        CASE
        WHEN ("CallDuration" / 60) > 1
          THEN round(("CallDuration" / 60), 0)
        WHEN ("CallDuration" / 60) < 1
          THEN 1
        WHEN "CallDuration" ISNULL
          THEN 0
        END AS duration,
        CASE
        WHEN descr.use_call_cost = TRUE
          THEN descr.call_cost
        WHEN descr.use_call_cost = FALSE
          THEN descr.minute_cost
        END                            AS COST,
        use_call_cost
      FROM cdr_cdrblocked
        JOIN cdr_description descr ON cdr_cdrblocked."Description" = descr.prefix
      UNION ALL
      SELECT
        DATE_TRUNC('day', "Timestamp") AS created,
        CASE
        WHEN ("CallDuration" / 60) > 1
          THEN round(("CallDuration" / 60), 0)
        WHEN ("CallDuration" / 60) < 1
          THEN 1
        WHEN "CallDuration" ISNULL
          THEN 0
        END AS duration,
        CASE
          WHEN descr.use_call_cost = TRUE
            THEN descr.call_cost
          WHEN descr.use_call_cost = FALSE
            THEN descr.minute_cost
        END AS COST,
        use_call_cost
      FROM cdr_cdrerror
        JOIN cdr_description descr ON cdr_cdrerror."Description" = descr.prefix
      WHERE cdr_cdrerror."Description" NOTNULL AND cdr_cdrerror."b_NumberIsCorrect" = TRUE
    ) cdr
    WHERE
      DATE(cdr.created) BETWEEN '01.06.2017' AND '23.11.2017' ORDER BY cdr.created
  ) calls
  GROUP BY calls.created, calls.COST, calls.use_call_cost ORDER BY calls.created
  )
calls_costs GROUP BY calls_costs.created;