Filip Grabowski created DRILL-4315: -------------------------------------- Summary: Empty JSON(Mongo) document causes "Unexpected RuntimeException" Key: DRILL-4315 URL: https://issues.apache.org/jira/browse/DRILL-4315 Project: Apache Drill Issue Type: Bug Affects Versions: 1.4.0 Environment: Linux Reporter: Filip Grabowski
An example of a JSON docuemnt: { "code" : "IRE-cGz6TqJEeWHVwBQVgET6w", "attributes" : {} } If all "attribute" are null(as in the example above) drill produces an error as shown below: select attributes from mongo.MASTER_WS.interactionrecord; Error: Unexpected RuntimeException: java.lang.NullPointerException (state=,code=0) The same query returns values if there is at least one document for which attribute is not null. It is ugly because it make the system look unstable. I wanted to use the query to convert JSON into parquet and it fails the same way as with the select. By the way when creating this issue version 1.4 was on the list of unreleased versions... -- This message was sent by Atlassian JIRA (v6.3.4#6332)