给Hive 添加一列

alter table bdm_full_data_day add columns(uuid string,source_name string,ypl_rank string) cascade;
 

 

hive -e  " sqlxxxxxxxxx "

如果sql 里面含有 " 是需要转义的。

我通过python 调用传入了 转移符是这样的:

                 hive -e "
                     set mapreduce.job.queuename=root.default;
                     set mapred.child.java.opts=-Xmx3072m;
                     set mapreduce.map.memory.mb=4096;
                     set mapreduce.reduce.memory.mb=4096;
                     set mapreduce.map.java.opts=-Xmx3072m;
                     set mapreduce.reduce.java.opts=-Xmx4096m;
                 select  col1 ,col2 from bkt.bkt_table   where col1 is not null and col1  is not null and col1   <> '' and  col1  <> '' and col1  not like '%s'
                " > %s 
        """ % ('\\\\\\\"%', self.bkt_file )