配置单元从1个表插入覆盖到另一个不同列数

Question

我有2个配置单元表。

源表有以下栏目：

correspondence_id  | decimal(22,0) |   | 
| template_id    | decimal(18,0) |   | 
| language_cd    | varchar(6)  |   | 
| delivery_channel_cd  | varchar(20) |   | 
| job_id     | decimal(18,0) |   | 
| correspondence_content | string   |   | 
| create_user_id   | varchar(40) |   | 
| create_ts    | timestamp  |   | 
| last_updt_user_id  | varchar(40) |   | 
| last_updt_ts   | timestamp  |   | 
| data_src_id    | decimal(18,0) |   | 
| src_app_resource_cd  | varchar(50) 

目的有以下栏目：

correspondence_id  | decimal(22,0)   |      | 
| template_id    | decimal(18,0)   |      | 
| template_cd    | varchar(20)   |      | 
| template_type_cd   | varchar(40)   |      | 
| category_cd    | varchar(20)   |      | 
| language_cd    | varchar(6)   |      | 
| delivery_channel_cd  | varchar(20)   |      | 
| job_id     | decimal(18,0)   |      | 
| correspondence_content | string    |      | 
| create_user_id   | varchar(40)   |      | 
| create_ts    | timestamp    |      | 
| last_updt_user_id  | varchar(40)   |      | 
| last_updt_ts    | timestamp    |      | 
| data_src_id    | decimal(18,0)   |      | 
| src_app_resource_cd  | varchar(50)   |      | 
| part_create_year_num  | int     |      | 
| part_create_month_num | int     |      | 
|       | NULL     | NULL     | 
| # Partition Information | NULL     | NULL     | 
| # col_name    | data_type    | comment    | 
|       | NULL     | NULL     | 
| part_create_year_num  | int     |      | 
| part_create_month_num | int  

进出口使用下面的查询来传输数据：

FROM source_table cc insert overwrite table 
destination_table partition 
(part_create_year_num=2016, part_create_month_num=9) 
select cc.correspondence_id, cc.template_id, cc.language_cd, cc.delivery_channel_cd, cc.job_id, 
cc.correspondence_content, cc.create_user_id, cc.create_ts, cc.last_updt_user_id, cc.last_updt_ts, 
cc.data_src_id, cc.src_app_resource_cd 

但是当我运行此查询我收到以下错误

rror: Error while compiling statement: FAILED: SemanticException [Error 10044]: Line 1:79 Cannot insert into target table because column number/types are different '9': Table insclause-0 has 15 columns, but query has 12 columns. (state=42000,code=10044) 
org.apache.hive.service.cli.HiveSQLException: Error while compiling statement: FAILED: SemanticException [Error 10044]: Line 1:79 Cannot insert into target table because column number/types are different '9': Table insclause-0 has 15 columns, but query has 12 columns. 

明显的来源和目的地表是不同的，但我如何使这个查询工作，我试着把占位符值，但是也没有工作。

Answer 1

看来，目标表有五个额外列额外

普通列： 1 template_cd | varchar（20）| 2 template_type_cd | varchar（40）| | 3 category_cd | varchar（20）| |

分隔栏 4. part_create_year_num | int | | 5. part_create_month_num |诠释

查询应该是

Insert overwrite table Destination_table partition(part_create_year_num=2016, part_create_month_num=9) select 
correspondence_id,   
template_id,  
'' as template_cd,  
'' as template_type_cd, 
'' as category_cd,  
language_cd,  
delivery_channel_cd, 
job_id, 
correspondence_content, 
create_user_id, 
create_ts, 
last_updt_user_id, 
last_updt_ts, 
data_src_id, 
src_app_resource_cd 
from source_table