Load data to hive array of struct - hive

Question

I have data in CSV looks like
David,"""SMARTPHONE,6""|""COMPUTER,3""|""LAPTOP,1"""
I try to load this to my hive table
create table user_device(name string, devices array<struct<devicename: string, number : int>>)
FIELDS TERMINATED BY ','
collection items terminated by '|'
STORED AS TEXTFILE
LOCATION 'maprfs:///user/david/';
I expected to see
[{"devicename":"SMARTPHONE","number":6},{"devicename":"COMPUTER","number":3},{"devicename":"LAPTOP","number":1}]
But when I try to query the table, I see the array of struct is
[{"devicename":"\"\"\"SMARTPHONE","number":null}]
Rest of the array and struct are gone.
Does anyone know how I can achieve this?
Thanks
David

Answer 1

He is a code I used. In the approach I used python for cleaning before proceeding to HQL queries. So after doing some wrangling steps, I have a file like this below (saved without indices and headers) in my local file system since its a small file:
import pandas as pd
import numpy as np
Name devicename number
0 David SMARTPHONE 6
1 COMPUTER 3
2 LAPTOP 1
Then a temp table tempt is created and populated with data from LFS or HDFS:
create table tempt
(
name string,
devicename string,
number int
)
row format delimited
FIELDS TERMINATED BY ',';
load data local inpath '/path_to_file' overwrite into table tempt;
select * from tempt;
+--------------------+--------------------------+----------------------+--+
| tempt.name | tempt.devicename | tempt.number |
+--------------------+--------------------------+----------------------+--+
| David | SMARTPHONE | 6 |
| | COMPUTER | 3 |
| | LAPTOP | 1 |
+--------------------+--------------------------+----------------------+--+
And now
Insert overwrite table user_device
select name,
array(named_struct("devicename",devicename,"number",number)) from tempt;
select * from user_device;
and the output now is as you expected.
+-----------------+-------------------------------------------+--+
|user_device.name | user_device.devices |
+-----------------+-------------------------------------------+--+
| David | [{"devicename":"SMARTPHONE","number":6}] |
| | [{"devicename":"COMPUTER","number":3}] |
| | [{"devicename":"LAPTOP","number":1}] |
+-----------------+-------------------------------------------+--+
Cheers!