using JSON-SerDe in Hive tables

Question

I\'m trying JSON-SerDe from below link http://code.google.com/p/hive-json-serde/wiki/GettingStarted.

         CREATE TABLE my_table (field1 string, field2          


        

Answer 1

I solved similar problem -

1. I took the jar from - [http://www.congiu.net/hive-json-serde/1.3.8/hdp23/json-serde-1.3.8-jar-with-dependencies.jar]

2. Run the command in Hive CLI - add jar /path/to/jar

3. Created table using -

create table messages (
    id int,
    creation_date string,
    text string,
    loggedInUser STRUCT
)
row format serde "org.openx.data.jsonserde.JsonSerDe";

4. This is my JSON data -

{"id": 1,"creation_date": "2020-03-01","text": "I am on cotroller","loggedInUser":{"id":1,"name":"API"}}
{"id": 2,"creation_date": "2020-04-01","text": "I am on service","loggedInUser":{"id":1,"name":"API"}}

5. Loaded data in table using -

LOAD DATA LOCAL INPATH '${env:HOME}/path-to-json'
OVERWRITE INTO TABLE messages;

6. select * from messages;

1   2020-03-01    I am on cotroller   {"id":1,"name:"API"}
2   2020-04-01    I am on service     {"id":1,"name:"API"}