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https://issues.apache.org/jira/browse/HIVE-13205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15179427#comment-15179427
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Rahul commented on HIVE-13205:
------------------------------
Gopal, I have tried the same with tez as well, but the reducer is still running
forever. Also, The query works fine if each partition have number of records
less than 30,000.
> Job with last_value() function keep running forever.
> ----------------------------------------------------
>
> Key: HIVE-13205
> URL: https://issues.apache.org/jira/browse/HIVE-13205
> Project: Hive
> Issue Type: Bug
> Reporter: Rahul
>
> Hi,
> I am running following query to fill all null with the last known value in
> the column:
> Select price,time, id,last_value(price,true) over (partition by id order by
> time) as LatestPrice from table;
> For few records, the query is running successfully. But for large number of
> records (2 Bn), the query keep running forever.
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