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单项选择题

现有一张分区表,impala中哪种操作是错误的。()

A.alter table stu_par add partition (month=’999901’);
B.load data inpath ’/student.txt’ into table stu_par partition(month=’888801’);
C.insert into table stu_par partition (month = ’777701’) select * from student;
D.select * from stu_par where month = ’777701’;