[HIVE-9249] java.lang.ClassCastException: org.apache.hadoop.hive.serde2.io.HiveVarcharWritable cannot be cast to org.apache.hadoop.hive.common.type.HiveVarchar when joining tables

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.14.0
• Fix Version/s: 1.0.0
• Component/s: Vectorization

Release Note

HIVE-9249: Vectorization: Join involving CHAR/VARCHAR fails during execution. (Matt McCline, reviewed by Gopal V)

• Assignee: Matt McCline
• Reporter: Matt McCline
• Created: 04/Jan/15 09:06
• Updated: 12/Mar/15 20:05
• Resolved: 09/Jan/15 09:24

Description

VectorColumnAssignFactory doesn't handle HiveCharWritable / HiveVarcharWritable objects.

Either:
HiveVarcharWritable cannot be cast to ... HiveVarchar
or
HiveCharWritable cannot be cast to ... HiveChar

Caused by: java.lang.ClassCastException: org.apache.hadoop.hive.serde2.io.HiveVarcharWritable cannot be cast to org.apache.hadoop.hive.common.type.HiveVarchar
	at org.apache.hadoop.hive.ql.exec.vector.VectorColumnAssignFactory$17.assignObjectValue(VectorColumnAssignFactory.java:417)
	at org.apache.hadoop.hive.ql.exec.vector.VectorMapJoinOperator.internalForward(VectorMapJoinOperator.java:196)
	at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genAllOneUniqueJoinObject(CommonJoinOperator.java:670)
	at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.checkAndGenObject(CommonJoinOperator.java:748)
	at org.apache.hadoop.hive.ql.exec.MapJoinOperator.processOp(MapJoinOperator.java:299)
	... 24 more

Issue Links

• is duplicated by: HIVE-9739 Various queries fails with Tez/ORC file org.apache.hadoop.hive.ql.exec.tez.TezTask due to Caused by: java.lang.ClassCastException