[HIVE-7889] Query fails with char partition column

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: Serializers/Deserializers
• Assignee: Mohit Sabharwal
• Reporter: Mohit Sabharwal
• Created: 26/Aug/14 23:55
• Updated: 13/Nov/14 19:43
• Resolved: 28/Aug/14 05:35

Description

For a char partition column, JavaHiveCharObjectInspector attempts to cast HiveCharWritable to HiveChar:

create table partition_char_1 (key string, value char(20)) partitioned by (dt char(10), region int);

insert overwrite table partition_char_1 partition(dt='2000-01-01', region=1)
  select * from src tablesample (10 rows);

select * from partition_char_1 limit 1;

java.sql.SQLException: Error while compiling statement: FAILED: RuntimeException org.apache.hadoop.hive.ql.metadata.HiveException: Failed with exception org.apache.hadoop.hive.serde2.io.HiveCharWritable cannot be cast to org.apache.hadoop.hive.common.type.HiveCharjava.lang.ClassCastException: org.apache.hadoop.hive.serde2.io.HiveCharWritable cannot be cast to org.apache.hadoop.hive.common.type.HiveChar
	at org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaHiveCharObjectInspector.set(JavaHiveCharObjectInspector.java:67)
	at org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorConverter$HiveCharConverter.convert(PrimitiveObjectInspectorConverter.java:506)
	at org.apache.hadoop.hive.ql.exec.FetchOperator.createPartValue(FetchOperator.java:315)

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