[jira] [Commented] (HIVE-9534) incorrect result set for query that projects a windowed aggregate

["Harsh J (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-9534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14512276#comment-14512276 ] 

Harsh J commented on HIVE-9534:
-------------------------------

Applying a similar SQL in PostgreSQL or Impala returns an error of the form "DISTINCT is not implemented for window functions". Hive, unless it did add proper support for distinct in such a context, should likely output the same error (if not a bug-fix).

> 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: SQL
>            Reporter: N Campbell
>
> 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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