SQL/union_join_sample at master · simonbreton/SQL · GitHub

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"(SELECT
  LAST_VALUE(channel IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Channel,
  LAST_VALUE(Start_time IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Start_time,
  LAST_VALUE(Duration IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Duration,
  LAST_VALUE(Mat_ID IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS ID,
  LAST_VALUE(Title IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Title,
  Event_label,
  Custom_dimension_2,
  ga.time,
  Total_events
FROM (
  SELECT
    CONCAT(CAST(Event_label AS string),"" "",FORMAT_TIMESTAMP('%Y-%m-%d %H:%M', PARSE_TIMESTAMP('%Y-%m-%d %k:%M',CONCAT(CAST(Date AS string),"" "",CAST(hour AS string),"":"",CAST((CASE
                  WHEN LENGTH(CAST (Minute AS string)) > 1 THEN CAST(Minute AS string)
                  ELSE CONCAT(CAST (0 AS string),CAST (Minute AS string)) END) AS string))))) AS UniqueID,
    *,
    FORMAT_TIMESTAMP('%Y-%m-%d %H:%M:%S', PARSE_TIMESTAMP('%Y-%m-%d %k:%M',CONCAT(CAST(Date AS string),"" "",CAST(hour AS string),"":"",CAST((CASE
                WHEN LENGTH(CAST (Minute AS string)) > 1 THEN CAST(Minute AS string)
                ELSE CONCAT(CAST (0 AS string),CAST (Minute AS string)) END) AS string)))) AS Time
  FROM
    `data` where Custom_dimension_2 = ""iOS"" order by time ) AS ga
LEFT JOIN (
  SELECT
    CONCAT(CAST((CASE
            WHEN Channel= ""foo"" THEN ""xxx""
            WHEN Channel= ""foobar"" THEN ""xxx""
            WHEN Channel= ""barfoo"" THEN ""xxx""
            ELSE NULL END) AS string),"" "",FORMAT_TIMESTAMP('%Y-%m-%d %H:%M', PARSE_TIMESTAMP('%m/%d/%Y %H:%M:%S',REGEXP_EXTRACT(start_time, r'(.*);')))) AS UniqueID,
    FORMAT_TIMESTAMP('%Y-%m-%d %H:%M:%S', PARSE_TIMESTAMP('%m/%d/%Y %H:%M:%S',REGEXP_EXTRACT(start_time, r'(.*);'))) AS Start_time,
    Channel,
    Duration,
    ID,
    Title,
    Template,
    Resource,
    Transfer_status,
    Machine_status,
    State
  FROM
    `data`
  WHERE
    Duration > '00:01:00:00') AS ar
ON
  ga.UniqueID = ar.UniqueID)

  UNION ALL

  (SELECT
  LAST_VALUE(channel IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Channel,
  LAST_VALUE(Start_time IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Start_time,
  LAST_VALUE(Duration IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Duration,
  LAST_VALUE(ID IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Mat_ID,
  LAST_VALUE(Title IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Title,
  Event_label,
  Custom_dimension_2,
  ga.time,
  Total_events
FROM (
  SELECT
    CONCAT(CAST(Event_label AS string),"" "",FORMAT_TIMESTAMP('%Y-%m-%d %H:%M', PARSE_TIMESTAMP('%Y-%m-%d %k:%M',CONCAT(CAST(Date AS string),"" "",CAST(hour AS string),"":"",CAST((CASE
                  WHEN LENGTH(CAST (Minute AS string)) > 1 THEN CAST(Minute AS string)
                  ELSE CONCAT(CAST (0 AS string),CAST (Minute AS string)) END) AS string))))) AS UniqueID,
    *,
    FORMAT_TIMESTAMP('%Y-%m-%d %H:%M:%S', PARSE_TIMESTAMP('%Y-%m-%d %k:%M',CONCAT(CAST(Date AS string),"" "",CAST(hour AS string),"":"",CAST((CASE
                WHEN LENGTH(CAST (Minute AS string)) > 1 THEN CAST(Minute AS string)
                ELSE CONCAT(CAST (0 AS string),CAST (Minute AS string)) END) AS string)))) AS Time
  FROM
    `data` where Custom_dimension_2 = ""Android"" order by time ) AS ga
LEFT JOIN (
  SELECT
    CONCAT(CAST((CASE
            WHEN Channel= ""foo"" THEN ""xxx""
            WHEN Channel= ""foobar"" THEN ""xxx""
            WHEN Channel= ""barfoo"" THEN ""xxx""
            ELSE NULL END) AS string),"" "",FORMAT_TIMESTAMP('%Y-%m-%d %H:%M', PARSE_TIMESTAMP('%m/%d/%Y %H:%M:%S',REGEXP_EXTRACT(start_time, r'(.*);')))) AS UniqueID,
    FORMAT_TIMESTAMP('%Y-%m-%d %H:%M:%S', PARSE_TIMESTAMP('%m/%d/%Y %H:%M:%S',REGEXP_EXTRACT(start_time, r'(.*);'))) AS Start_time,
    Channel,
    Duration,
    ID,
    Title,
    Template,
    Resource,
    Transfer_status,
    Machine_status,
    State
  FROM
    `data`
  WHERE
    Duration > '00:01:00:00') AS ar
ON
  ga.UniqueID = ar.UniqueID)

  UNION ALL

  (SELECT
  LAST_VALUE(channel IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Channel,
  LAST_VALUE(Start_time IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Start_time,
  LAST_VALUE(Duration IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Duration,
  LAST_VALUE(ID IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Mat_ID,
  LAST_VALUE(Title IGNORE NULLS) OVER (PARTITION BY Event_label ORDER BY ga.time ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS Title,
  Event_label,
  Custom_dimension_2,
  ga.time,
  Total_events
FROM (
  SELECT
    CONCAT(CAST(Event_label AS string),"" "",FORMAT_TIMESTAMP('%Y-%m-%d %H:%M', PARSE_TIMESTAMP('%Y-%m-%d %k:%M',CONCAT(CAST(Date AS string),"" "",CAST(hour AS string),"":"",CAST((CASE
                  WHEN LENGTH(CAST (Minute AS string)) > 1 THEN CAST(Minute AS string)
                  ELSE CONCAT(CAST (0 AS string),CAST (Minute AS string)) END) AS string))))) AS UniqueID,
    *,
    FORMAT_TIMESTAMP('%Y-%m-%d %H:%M:%S', PARSE_TIMESTAMP('%Y-%m-%d %k:%M',CONCAT(CAST(Date AS string),"" "",CAST(hour AS string),"":"",CAST((CASE
                WHEN LENGTH(CAST (Minute AS string)) > 1 THEN CAST(Minute AS string)
                ELSE CONCAT(CAST (0 AS string),CAST (Minute AS string)) END) AS string)))) AS Time
  FROM
    `data` where Custom_dimension_2 = ""Roku"" order by time ) AS ga
LEFT JOIN (
  SELECT
    CONCAT(CAST((CASE
            WHEN Channel= ""foo"" THEN ""xxx""
            WHEN Channel= ""foobar"" THEN ""xxx""
            WHEN Channel= ""barfoo"" THEN ""xxx""
            ELSE NULL END) AS string),"" "",FORMAT_TIMESTAMP('%Y-%m-%d %H:%M', PARSE_TIMESTAMP('%m/%d/%Y %H:%M:%S',REGEXP_EXTRACT(start_time, r'(.*);')))) AS UniqueID,
    FORMAT_TIMESTAMP('%Y-%m-%d %H:%M:%S', PARSE_TIMESTAMP('%m/%d/%Y %H:%M:%S',REGEXP_EXTRACT(start_time, r'(.*);'))) AS Start_time,
    Channel,
    Duration,
    ID,
    Title,
    Template,
    Resource,
    Transfer_status,
    Machine_status,
    State
  FROM
    `data`
  WHERE
    Duration > '00:01:00:00') AS ar
ON
  ga.UniqueID = ar.UniqueID)"