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https://issues.apache.org/jira/browse/HIVE-14863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15537221#comment-15537221
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Matt McCline commented on HIVE-14863:
-------------------------------------
Checkout CastDecimalToLong. It even as a "lossy" TODO
AnyIntegerFromDecimalTreeReader in ConvertTreeReader has a lossy comment, too,
but actually the downCastAnyInteger some of the right thing and makes it a null
if the long doesn't fit. However, if the longValue function of HiveDecimal
returns a truncated long value, then we do the wrong thing.
> Decimal to int conversion produces incorrect values
> ---------------------------------------------------
>
> Key: HIVE-14863
> URL: https://issues.apache.org/jira/browse/HIVE-14863
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Priority: Critical
> Attachments: HIVE-14863.patch
>
>
> {noformat}
> > select cast(cast ('111111111111111' as decimal(38,0)) as int);
> OK
> 307163591
> {noformat}
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