[jira] [Commented] (DRILL-3343) Seemingly incorrect result with SUM window functions and float data type

["Deneche A. Hakim (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-3343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14600049#comment-14600049 ] 

Deneche A. Hakim commented on DRILL-3343:
-----------------------------------------

This query is using {{rows unbounded preceding}} which we do not support. I don't think this is the cause of the incorrect results though

> Seemingly incorrect result with SUM window functions and float data type
> ------------------------------------------------------------------------
>
>                 Key: DRILL-3343
>                 URL: https://issues.apache.org/jira/browse/DRILL-3343
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Data Types
>    Affects Versions: 1.0.0
>            Reporter: Victoria Markman
>            Assignee: Deneche A. Hakim
>            Priority: Critical
>              Labels: window_function
>             Fix For: 1.1.0
>
>         Attachments: create_table.tar, queries.tar, voter_hive
>
>
> While running query below against voter_hive (drill table), where contributions field is defined as "float" (4 byte floating point number in drill) I get a value of SUM that is different from result generated by postgres.
> {code}
> select 
>           registration, 
>           age, 
>           name, 
>           sum(contributions) over w  
> from   voter_hive 
> window w AS (partition by registration order by age rows unbounded preceding) 
> order by 
>           registration, 
>           age, 
>           name;
> {code}
> Find attached:
> 1. Query + result generated by Postgres (queries.tar)
> 2. voter_hive parquet file
> 3. create_table.tar - contains CTAS statement + csv file (if you want to create table yourself)



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