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https://issues.apache.org/jira/browse/DRILL-708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14031618#comment-14031618
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Yash Sharma commented on DRILL-708:
-----------------------------------
The function would return float currently to avoid data loss on converting to
long etc.
Added DRILL-988 for this bugfix.
Fix : future.
> TRUNC(n1) function returns a decimal instead of int
> ---------------------------------------------------
>
> Key: DRILL-708
> URL: https://issues.apache.org/jira/browse/DRILL-708
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Affects Versions: 1.0.0-milestone-1
> Reporter: Krystal
> Assignee: Yash Sharma
> Fix For: Future
>
> Attachments: DRILL-708.patch
>
>
> The TRUNC(n1) function should return the integer part of n1 as an int. In
> drill, however, the value returned is a decimal. For example,
> select trunc(15.79) from voter where voter_id=10;
> returns 15.0
> The other database platforms return an int value of 15.
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