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Posted to dev@drill.apache.org by "Neeraja (JIRA)" <ji...@apache.org> on 2014/08/02 02:05:40 UTC
[jira] [Created] (DRILL-1244) "Index out of bound Exception" with
Null arrays in JSON for certain result set size
Neeraja created DRILL-1244:
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Summary: "Index out of bound Exception" with Null arrays in JSON for certain result set size
Key: DRILL-1244
URL: https://issues.apache.org/jira/browse/DRILL-1244
Project: Apache Drill
Issue Type: Bug
Components: Storage - JSON
Affects Versions: 0.4.0
Reporter: Neeraja
Certain queries on a JSON dataset throwing "Index out of bounds exception" errors when they process null arrays. The Null arrays are just returned fine when a variation of the query is attempted in such a way that different number of records are returned.
The specific query that reproduces the issue is below.
SELECT t.marketing_info.keywords FROM dfs.`/home/mapr/mobile.json` t where t.trans_info.purch_flag like 'true' and t.user_info.state like 'wa'
The issue seem to be occurring in the record below (note the empty keyword array). Modifying the keywords field to add a entry fixes the issue.
{"trans_id":10710,"date":"07/19/2013","time":"13:27:22","user_info":{"cust_id":38533,"device":"IOS5","state":"wa"},"marketing_info":{"camp_id":1,"keywords":[]},"trans_info":{"prod_id":[104,307],"purch_flag":"true"}}
Any variation of query done such as below works fine too.
SELECT t.marketing_info.keywords FROM dfs.`/home/mapr/mobile.json` t where t.user_info.state like 'wa' ;
SELECT t.marketing_info.keywords FROM dfs.`/home/mapr/mobile.json` t where t.trans_info.purch_flag like 'true' ;
SELECT t.marketing_info.keywords FROM dfs.`/home/mapr/mobile.json` t ;
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