HIVE ORC 報錯ClassCastException

 

HIVE ORC格式的表查詢報錯 

Failed with exception java.io.IOException:java.lang.ClassCastException: org.apache.hadoop.hive.ql.io.orc.OrcStruct cannot be cast to org.apache.hadoop.io.BinaryComparable

建表語句如下：

CREATE EXTERNAL TABLE `test_orc`(
`test` string,
`value` string
)
PARTITIONED BY (
`dt` int,
`dh` int)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY '\u0001'
STORED AS INPUTFORMAT
'org.apache.hadoop.hive.ql.io.orc.OrcInputFormat'
OUTPUTFORMAT
'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat';

此語句是錯誤的，是從已有表中通過show create table 查詢出來的，正確的應該如下：

CREATE EXTERNAL TABLE `test_orc`(
`test` string, 
`value` string
)

PARTITIONED BY (
`dt` int,
`dh` int)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY '\u0001'
STORED AS ORC

 

 

參考 http://knowledge.teradata.com/support/general/kcs.nsf/id/KCS007752