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From "Raviv M-G (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-1637) String partitions that start with spaces or numbers cause errors
Date Wed, 15 Sep 2010 16:37:32 GMT
String partitions that start with spaces or numbers cause errors

                 Key: HIVE-1637
                 URL: https://issues.apache.org/jira/browse/HIVE-1637
             Project: Hadoop Hive
          Issue Type: Bug
    Affects Versions: 0.7.0
         Environment: java 1.6
            Reporter: Raviv M-G
            Priority: Minor

When a string partition starts with a space or with a number joins on that table or selecting
one field from that table will cause errors.  You can, however, still perform partition specific
queries without a problem.

    > select UT from researchaddress limit 10;
Total MapReduce jobs = 1
Launching Job 1 out of 1
Number of reduce tasks is set to 0 since there's no reduce operator
Cannot run job locally: Input Size (= 134217728) is larger than hive.exec.mode.local.auto.inputbytes.max
(= 134217728)
java.lang.IllegalArgumentException: Can not create a Path from an empty string
	at org.apache.hadoop.fs.Path.checkPathArg(Path.java:82)
	at org.apache.hadoop.fs.Path.<init>(Path.java:90)
	at org.apache.hadoop.mapred.FileInputFormat.addInputPaths(FileInputFormat.java:296)
	at org.apache.hadoop.hive.ql.exec.ExecDriver.addInputPaths(ExecDriver.java:1182)
	at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:569)
	at org.apache.hadoop.hive.ql.exec.MapRedTask.execute(MapRedTask.java:120)
	at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:108)
	at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:55)
	at org.apache.hadoop.hive.ql.exec.TaskRunner.run(TaskRunner.java:47)
Job Submission failed with exception 'java.lang.IllegalArgumentException(Can not create a
Path from an empty string)'

And attempting to rename a table with such a partition causes:

hive> alter table researchaddress rename to researchaddress2;
Invalid alter operation: Old partition location  is invalid. (hdfs://nber9.nber.org:54310/user/hive/warehouse/researchaddress/nu=0

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