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https://issues.apache.org/jira/browse/HIVE-814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carl Steinbach reopened HIVE-814:
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> exception alter a int typed column to date/datetime/timestamp
> -------------------------------------------------------------
>
> Key: HIVE-814
> URL: https://issues.apache.org/jira/browse/HIVE-814
> Project: Hadoop Hive
> Issue Type: Bug
> Reporter: Min Zhou
>
> As fas as i know, time types can only be used in partitions, normal columns
> is not allowed to be set as those types . But it's found can alter a no time
> types column to date/datetime/timestamp,but exceptions will be throwed when
> describing.
> hive> create table pokes(foo int, bar string);
> OK
> Time taken: 0.894 seconds
> hive> alter table pokes replace columns(foo date, bar string);
> OK
> Time taken: 0.266 seconds
> hive> describe pokes;
> FAILED: Error in metadata:
> MetaException(message:java.lang.IllegalArgumentException Error: type expected
> at the position 0 of 'date:string' but 'date' is found.)
> FAILED: Execution Error, return code 1 from
> org.apache.hadoop.hive.ql.exec.DDLTask
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