HIVE ORC 报错ClassCastException

HIVE ORC格式的表查询报错

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

建表语句如下：

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';

此语句是错误的，是从已有表中通过show create table 查询出来的，正确的应该如下：

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

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

转载于:https://www.cnblogs.com/zhangzhanhua/p/8446870.html

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