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https://issues.apache.org/jira/browse/HIVE-9534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15143743#comment-15143743
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Yongzhi Chen commented on HIVE-9534:
------------------------------------
It seems that your method need a global sorting first, then group the values to
have a right answer. Not As what I thought: each node sort and group its own
values, then merge (which need combine arrays). Does your method do global
sorting first?
> incorrect result set for query that projects a windowed aggregate
> -----------------------------------------------------------------
>
> Key: HIVE-9534
> URL: https://issues.apache.org/jira/browse/HIVE-9534
> Project: Hive
> Issue Type: Bug
> Components: PTF-Windowing
> Reporter: N Campbell
> Assignee: Aihua Xu
> Attachments: HIVE-9534.1.patch, HIVE-9534.2.patch, HIVE-9534.3.patch,
> HIVE-9534.4.patch
>
>
> Result set returned by Hive has one row instead of 5
> {code}
> select avg(distinct tsint.csint) over () from tsint
> create table if not exists TSINT (RNUM int , CSINT smallint)
> ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' LINES TERMINATED BY '\n'
> STORED AS TEXTFILE;
> 0|\N
> 1|-1
> 2|0
> 3|1
> 4|10
> {code}
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