Замена для row_number () в кликхаусе

Question

Row_number () не поддерживается базой данных clickhouse, которая ищет альтернативную функцию.

SELECT company_name AS company,
       DOMAIN,
       city_name AS city,
       state_province_code AS state,
       country_code AS country,
       location_revenue AS revenueRange,
       location_TI_industry AS industry,
       location_employeecount_range AS employeeSize,
       topic,
       location_duns AS duns,
       rank AS intensityRank,
       dnb_status_code AS locationStatus,
       rank_delta AS intensityRankDelta,
       company_id,
       ROW_NUMBER() OVER (PARTITION BY DOMAIN) AS rowNumberFROM company_intent c
 WHERE c.rank > 0
   AND c.rank <= 10
   AND c.signal_count > 0
   AND c.topic IN ('Cloud Computing')
   AND c.country_code = 'US'
   AND c.rank IN (7, 8, 9, 10)
 GROUP BY c.location_duns,
          company_name,
          DOMAIN,
          city_name,
          state_province_code,
          country_code,
          location_revenue,
          location_TI_industry,
          location_employeecount_range,
          topic,
          rank,
          dnb_status_code,
          rank_delta,
          company_id
 ORDER BY intensityRank DESC
 LIMIT 15 SELECT COUNT (DISTINCT c.company_id) AS COUNT
  FROM company_intent c
 WHERE c.rank > 0
   AND c.rank <= 10
   AND c.signal_count > 0
   AND c.topic IN ('Cloud Computing')
   AND c.country_code = 'US'
   AND c.rank IN (7, 8, 9, 10)

При выполнении вышеприведенного запроса получена следующая ошибка:

Ожидается одно из: SETTINGS, FORMAT, WITH, HAVING, LIMIT, FROM, PREWHERE, токен, UNION ALL, запятая,ГДЕ, ЗАКАЗЫВАЙТЕ, В OUTFILE, GROUP BY

любые предложения приветствуются

Answer 1

что-то вроде этого (ужасно, но хорошо работает)

SELECT *, rn +1 -min_rn current, max_rn - min_rn + 1 last FROM (
SELECT *, rowNumberInAllBlocks() rn FROM (
SELECT i_device, i_time
FROM tbl
ORDER BY i_device, i_time
) t
) t1 LEFT JOIN (
SELECT i_device, min(rn) min_rn, max(rn) max_rn FROM (
SELECT *, rowNumberInAllBlocks() rn FROM (
SELECT i_device, i_time
FROM tbl
ORDER BY i_device, i_time
) t
) t GROUP BY i_device
) t2 USING (i_device)

Answer 2

ClickHouse пока не поддерживает оконные функции.Существует функция rowNumberInAllBlocks , которая может быть вам интересна.