The JSON file contains one record `company` which is an array containing
two elements.
> select t.company from hdfs.`autom.json` t;
+------------+
| company |
+------------+
| [{"modelName":{"name":"abc"}},{"modelName":{"name":"xyz"}}] |
+------------+
1 row selected (0.126 seconds)
And that is the reason you see just one record with your query. To fetch
both records, can you try this:
select p.q.`modelName` from (select flatten(t.company) q from
hdfs.`autom.json` t) p;
+------------+
| EXPR$0 |
+------------+
| {"name":"abc"} |
| {"name":"xyz"} |
+------------+
For more details you can refer
https://cwiki.apache.org/confluence/display/DRILL/FLATTEN+Function
On Thu, Apr 30, 2015 at 12:14 PM, Mohit Kaushik <[email protected]>
wrote:
> I have a json file in HDFS named autom.json contains.
> {
> "company": [
> {
> "modelName": {
> "name": "abc"
> }
> },
> {
> "modelName": {
> "name": "xyz"
> }
> }
> ]
> }
> When i query
> select t.company.`modelName` from hdfs.`autom.json` t ;
> it gives result
> {"name":"abc"}
> However, The expected result was both entries.
> {"name":"abc"}
> {"name":"xyz"}
> Even when I query
> select t.company.`modelName` from hdfs.`autom.json` t where
> t.company.`modelName`.`name`='xyz' ;
> it does not find anything.
>
>
>
