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Posted to dev@hive.apache.org by "Aihua Xu (JIRA)" <ji...@apache.org> on 2015/04/30 17:28:06 UTC
[jira] [Created] (HIVE-10555) Windowing function for count(*) with
preceding rows doesn't work as expected
Aihua Xu created HIVE-10555:
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Summary: Windowing function for count(*) with preceding rows doesn't work as expected
Key: HIVE-10555
URL: https://issues.apache.org/jira/browse/HIVE-10555
Project: Hive
Issue Type: Bug
Components: PTF-Windowing
Affects Versions: 1.3.0
Reporter: Aihua Xu
The following windowing function always returns 0 for count(*).
{noformat}
select key, count(*) over (partition by key order by value rows between 1 preceding and 2 preceding) from t1;
{noformat}
Seems windowing functions have some issues when dealing with preceding window.
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