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Posted to issues@drill.apache.org by "Volodymyr Vysotskyi (JIRA)" <ji...@apache.org> on 2018/08/27 19:28:00 UTC
[jira] [Commented] (DRILL-6713) Infinite loop when retrieving
decimal value with scale = -1
[ https://issues.apache.org/jira/browse/DRILL-6713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16594135#comment-16594135 ]
Volodymyr Vysotskyi commented on DRILL-6713:
--------------------------------------------
This one has the same root cause as DRILL-6710 - ODBC client does not expect the negative scale
> Infinite loop when retrieving decimal value with scale = -1
> -----------------------------------------------------------
>
> Key: DRILL-6713
> URL: https://issues.apache.org/jira/browse/DRILL-6713
> Project: Apache Drill
> Issue Type: Bug
> Components: Client - C++
> Affects Versions: 1.14.0
> Reporter: Rob Wu
> Priority: Major
>
>
> The server returns scale value of -1 for this query
> select cast('999999999999999999' as decimal(18,0)) + cast('9999999999999999999999999999999999999' as decimal(38,0)) from (values(1))
>
> The getValueAt() function did not take into account of the possibility of -1 scale and will go into infinite loop of appending 0 to the string buffer.
> [https://github.com/apache/drill/blob/1.14.0/contrib/native/client/src/include/drill/recordBatch.hpp#L752]
>
> This can be reproduced query submitter.
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