首先,我创建一个配置单元分区表:
hive> create table partition_table
> (sid int ,sname string ,age int)
> partitioned by (sex string)
> row format delimited fields terminated by',';
OK
Time taken: 1.232 seconds
Run Code Online (Sandbox Code Playgroud)
表desc如下所示:
hive> desc partition_table;
OK
sid int
sname string
age int
sex string
# Partition Information
# col_name data_type comment
sex string
Time taken: 0.34 seconds, Fetched: 9 row(s)
Run Code Online (Sandbox Code Playgroud)
然后将一些数据插入此表中,但是它不起作用。
hive> insert into table partition_table partition(sex='M')select sno ,sname ,age from student1 where sex ='M';
FAILED: SemanticException [Error 10006]: Line 1:44 Partition not found ''M''
Run Code Online (Sandbox Code Playgroud)
为了避免这种情况,我编写了以下命令,然后执行了我的插入命令,即使我反复遇到相同的错误。
set exec.dynamic.partition=true;
set exec.dynamic.partition.mode=nonstrict;
Run Code Online (Sandbox Code Playgroud)
加载前添加分区:
ALTER TABLE partition_table ADD PARTITION( sex= 'M' );
insert into table partition_table partition(sex='M') select sno ,sname ,age from student1 where sex ='M';
Run Code Online (Sandbox Code Playgroud)
或尝试动态分区:
set hive.exec.dynamic.partition=true;
INSERT OVERWRITE TABLE partition_table PARTITION (sex)
SELECT sid, sname, age, sex
FROM student1;
Run Code Online (Sandbox Code Playgroud)