如何合并以临时表逻辑 BigQuery SQL 开头的两个表

Question

I have two tables that I need to union. Both of them have the same logic, just different source tables. Query looks like this:

with origin_table as (
    SELECT
        date,
        (
            SELECT
                value
            FROM
                UNNEST(hits.customDimensions)
            WHERE
                INDEX = 10
        ) AS second_scroll,
        (
            SELECT
                value
            FROM
                UNNEST(hits.customDimensions)
            WHERE
                INDEX = 11
        ) AS dwell
    FROM
        (
            SELECT
                date,
                hits,
            FROM
                `table_1`,
                UNNEST(hits) AS hits
        )
    GROUP BY
        1
    select
        date,
        case
            when second_scroll is not null
            AND dwell is not null then 1
            when second_scroll is null
            AND dwell is not null then 0
            when second_scroll is not null
            AND dwell is null then 0
        end as ENGAGEMENT
    from
        origin_table

This query works perfectly fine, but when I add the same exact query below that is pulling data from table_2 and use UNION ALL I have the following error: Syntax error: Expected "(" or keyword SELECT but got keyword WITH So the queries can not start with with table as . Now to UNION two tables with this logic?

Answer 1

I would think this would be close... Need more detail to the nature of your problem or an ability to recreate it to isolate the issue...

with origin_table as (
    SELECT
        date,
        (
            SELECT
                value
            FROM
                UNNEST(hits.customDimensions)
            WHERE
                INDEX = 10
        ) AS second_scroll,
        (
            SELECT
                value
            FROM
                UNNEST(hits.customDimensions)
            WHERE
                INDEX = 11
        ) AS dwell
    FROM
        (
            SELECT
                date,
                hits,
            FROM
                `table_1`,
                UNNEST(hits) AS hits
        )
    GROUP BY
        1),  --added the comma for 2nd cte.

 origin_table2 as ( --Begin 2nd CTE
    SELECT
        date,
        (
            SELECT
                value
            FROM
                UNNEST(hits.customDimensions)
            WHERE
                INDEX = 10
        ) AS second_scroll,
        (
            SELECT
                value
            FROM
                UNNEST(hits.customDimensions)
            WHERE
                INDEX = 11
        ) AS dwell
    FROM
        (
            SELECT
                date,
                hits,
            FROM
                `table_2`,  --changed to table 2
                UNNEST(hits) AS hits
        )
    GROUP BY
        1)

    select
        date,
        case
            when second_scroll is not null
            AND dwell is not null then 1
            when second_scroll is null
            AND dwell is not null then 0
            when second_scroll is not null
            AND dwell is null then 0
        end as ENGAGEMENT
    from
        origin_table
    UNION ALL  --here's the union 
    select
        date,
        case
            when second_scroll is not null
            AND dwell is not null then 1
            when second_scroll is null
            AND dwell is not null then 0
            when second_scroll is not null
            AND dwell is null then 0
        end as ENGAGEMENT
    from
        origin_table2 --and selecting from 2nd CTE to union...