Question

Hive版本为0.13，Hive表描述如下：

CREATE  TABLE temp
(
customer_id int,
sales_item array<struct<item_id:int,item_name:string,item_price:decimal(10,2)>>,
)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
COLLECTION ITEMS TERMINATED BY '|';

我的csv文件是：

10,1|watch|300

如何插入hive表...我试过，我的输出如下：

10  [{"item_id":1,"item_name":null,"item_price":null}]

不为item_name和item_price插入任何值。

Answer 1

分隔符的当前文档存在问题。我稍后会更新。
它实际上不是字段，集合项和映射键，而是嵌套级别1,2和3，还有其他级别未映射通过create table语法。

create external table temp
(
    customer_id     int
   ,sales_item      array<struct<item_id:int,item_name:string,item_price:decimal(10,2)>>
)
row format delimited
fields terminated by ','
map keys terminated by '|'
;

select * from temp
;

+-------------+------------------------------------------------------+
| customer_id |                      sales_item                      |
+-------------+------------------------------------------------------+
|          10 | [{"item_id":1,"item_name":"watch","item_price":300}] |
+-------------+------------------------------------------------------+

将csv数据插入到复杂的hive表中

1 个答案: