sql - 雪花：尝试将通过多项选择生成的值插入到表中

Question

我正在尝试将查询从 Redshift 迁移到雪花。此查询用于填充表中的一行，并且这些值是从各种其他表中生成的。这在红移中运行良好，但我一直在尝试检查雪花文档，但无法找到雪花是否支持它。任何人都知道如何重写

insert into
    etl_audit_table
    (
        batch_id,
        batch_run_date,
        table_name,
        staging_row_count,
        dwh_load_type
    )
    values
    (
    (   select
            batch_id
        from
            etl_cntrl.batch_history_table
        where
            batch_status='running'
    )
    ,
    current_date,
    'tablename',
    (   select
            count(*)
        from
            table
        where
            lastmodifieddate between '2021-07-31 00:00:00' and '2021-08-17 00:00:00'
    ),
    'Slow Changing Dimension'
    )

尝试在雪花上执行时出现以下错误

11:46:54 失败 [INSERT - 0 行，0.658 秒] [代码：2014，SQL 状态：22000] SQL 编译错误：无效表达式 [(SELECT 1 AS "BATCH_ID" FROM TABLE (GENERATOR)ROWCOUNT => 1, rowCount => 1) GENERATOR)] 在 VALUES 子句中

Answer 1

我能够通过如下重写查询来使其工作

insert into
    etl_audit_table
    (
        batch_id,
        batch_run_date,
        table_name,
        staging_row_count,
        dwh_load_type
    )
    select
    (   select
            batch_id
        from
            etl_cntrl.batch_history_table
        where
            batch_status='running'
    )
    ,
    current_date,
    'tablename',
    (   select
            count(*)
        from
            table
        where
            lastmodifieddate between '2021-07-31 00:00:00' and '2021-08-17 00:00:00'
    ),
    'Slow Changing Dimension'