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https://issues.apache.org/jira/browse/HIVE-4262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HIVE-4262:
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Attachment: HIVE-4262.D9837.1.patch
hbutani requested code review of "HIVE-4262 [jira] fix last_value UDAF
behavior".
Reviewers: JIRA, ashutoshc
fix last_value
When an Order Spec is present in an Over clause
last_value should return the value from the last row that matches the current
row's Sort Key.
See egs here http://msdn.microsoft.com/en-us/library/hh231517.aspx
TEST PLAN
added new test to window_navfn.q
REVISION DETAIL
https://reviews.facebook.net/D9837
AFFECTED FILES
data/files/flights_tiny.txt
data/files/part.rc
data/files/part.seq
ql/src/java/org/apache/hadoop/hive/ql/parse/WindowingSpec.java
ql/src/test/queries/clientpositive/windowing_navfn.q
ql/src/test/results/clientpositive/windowing_navfn.q.out
MANAGE HERALD RULES
https://reviews.facebook.net/herald/view/differential/
WHY DID I GET THIS EMAIL?
https://reviews.facebook.net/herald/transcript/23463/
To: JIRA, ashutoshc, hbutani
> fix last_value UDAF behavior
> ----------------------------
>
> Key: HIVE-4262
> URL: https://issues.apache.org/jira/browse/HIVE-4262
> Project: Hive
> Issue Type: Bug
> Components: PTF-Windowing
> Reporter: Harish Butani
> Assignee: Harish Butani
> Attachments: HIVE-4262.D9837.1.patch
>
>
> When an Order Spec is present in an Over clause
> last_value should return the value from the last row that matches the current
> row's Sort Key.
> See egs here http://msdn.microsoft.com/en-us/library/hh231517.aspx
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