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From "Yi Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-10140) Window boundary is not compared correctly
Date Mon, 30 Mar 2015 16:02:52 GMT
Yi Zhang created HIVE-10140:
-------------------------------

             Summary: Window boundary is not compared correctly
                 Key: HIVE-10140
                 URL: https://issues.apache.org/jira/browse/HIVE-10140
             Project: Hive
          Issue Type: Bug
          Components: PTF-Windowing
    Affects Versions: 1.0.0
            Reporter: Yi Zhang
            Priority: Minor


“ROWS between 10 preceding and 2 preceding” is not handled correctly.

Underlying error: Window range invalid, start boundary is greater than end boundary: window(start=range(10
PRECEDING), end=range(2 PRECEDING))

If I change it to “2 preceding and 10 preceding”, the syntax works but the results are
0 of course.


Reason for the function: during analysis, it is sometimes desired to design the window to
filter the most recent events, in the case of the events' responses are not available yet.
There is a workaround for this, but it is better/more proper to fix the bug. 



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