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1. hive 执行sql，报错：

 Error while compiling statement: FAILED: 
ParseException line 23:13 extraneous input '(' expecting ) near ')' in subquery source

2. sql 如下 ：

SELECT
	pxx_id,
	pxxx_name,
	xxx,
	creationtime,
	creatorid,
	lastxxxxntime,
	lxxxierid,
	NULL,
	NULL,
    NULL 
FROM
	(
SELECT
	pxx_id,
	pxxx_name,
	xxx,
	creationtime,
	creatorid,
	lastxxxxntime,
	lxxxierid,
	NULL,
	NULL
	NULL Row_number ( ) OVER ( PARTITION BY xxx ORDER BY xxx DESC ) AS num 
FROM
	xxx.bxxxi_xxxts_xxxce 
	) bcp 
WHERE
	bcp.num = 1;

3. 解决：如下图，少一个逗号：