Hive 如何在配置单元中使用两个子查询

当我在下面运行查询时，我得到了错误

FAILED: SemanticException [Error 10249]: Line 13:15 Unsupported SubQuery Expression 'master_cd': Only 1 SubQuery expression is supported.

SELECT
cfs.roll_no,
max(cclas.crdm_cd) as crdm_cd,
max(cclas.kjtm_cd) as kjtm_cd
FROM cust_focus cfs
LEFT JOIN cust_class cclas
ON (cfs.CF_CLAS_NO = cclas.CLAS_NO
AND cfs.DFS_CD = cclas.DFS_CD 
AND cclas.D_AREA = 'US' 
AND cclas.active_flag = 'Y')
WHERE cfs.roll_no NOT IN (SELECT roll_no FROM class_hist)
AND UPPER(TRIM(cfs.D_AREA)) = 'US'
AND (cfs.master_cd IN (SELECT msk5.msk5_master_cd from msk5_mst_tbl as msk5 WHERE cfs.master_cd=msk5.msk5_master_cd and msk5_m_code=9)
OR cfs.master_cd IS NULL)
group by cfs.roll_no;

请帮我解决这个问题

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提前感谢。

您可以将第二个子查询从msk5_mst_tbl中选择msk5.msk5_master_cd替换为msk5，其中cfs.master_cd=msk5.msk5_master_cd和msk5_m_code=9，并使用联接

...
from
cust_focus cfs
...
left join msk5_mst_tbl msk5
  on cfs.master_cd=msk5.msk5_master_cd
  and msk5_m_code=9