text: with all_data as (
      SELECT user_id, conversionVisitExternalClickId FROM `${saSource1}`
      UNION ALL (SELECT user_id, conversionVisitExternalClickId FROM `${saSource2}`)
      UNION ALL (SELECT user_id, conversionVisitExternalClickId FROM `${saSource3}`)
      UNION ALL (SELECT user_id, conversionVisitExternalClickId FROM `${saSource4}`)
  )
  SELECT
      DISTINCT user_id
  FROM
      all_data
  WHERE
      user_id IS NOT NULL
      AND conversionVisitExternalClickId in (
          SELECT
              gclid
          FROM
              `${dataset}.double_activation_gclids_${partitionDay}`
      )