Re: change column type of orc table will throw exception in query time

hi all: I'veI created a jira for this problem: https://issues.apache.org/jira/browse/HIVE-7847 . Thanks. 2014-08-22 1:59 GMT+08:00 wzc : > hi all: > > I test the above example with hive trunk and it still fail. After some > debugging, finally I find the cause of the problem: > > Hive use Com

Re: change column type of orc table will throw exception in query time

hi all: I test the above example with hive trunk and it still fail. After some debugging, finally I find the cause of the problem: Hive use CombineFileRecordReader and in one CombineFileSplit there are often more than one path. In this case, the schema for these two paths (dt='20140718' vs dt=