[DRILL-446] Classcast exception while input data has an array field.

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.4.0
• Fix Version/s: 0.4.0
• Component/s: Execution - Data Types
• Assignee: Unassigned
• Reporter: Bhallamudi Venkata Siva Kamesh
• Created: 25/Mar/14 11:20
• Updated: 29/Apr/15 21:36
• Resolved: 25/Mar/14 18:05

Description

I am trying to load the data which is of the following format

{
    "test": "ABC",
    "test2": [1,2,3],
    "a": "drill"
}
{
    "test": "abc",
    "test2": [1,2,3,4],
    "a": "apache"
}

and executing SELECT query on the above data. While doing that I am getting the following exception

java.lang.ClassCastException: org.apache.drill.exec.vector.NullableVarCharVector cannot be cast to org.apache.drill.exec.vector.RepeatedVarCharVector
	at org.apache.drill.exec.store.easy.json.JSONRecordReader$ReadType.addValueToVector(JSONRecordReader.java:459)
	at org.apache.drill.exec.store.easy.json.JSONRecordReader$ReadType.recordData(JSONRecordReader.java:389)
	at org.apache.drill.exec.store.easy.json.JSONRecordReader$ReadType.readRecord(JSONRecordReader.java:295)
	at org.apache.drill.exec.store.easy.json.JSONRecordReader.next(JSONRecordReader.java:134)