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Posted to dev@hive.apache.org by "Teddy Choi (JIRA)" <ji...@apache.org> on 2013/10/09 15:32:43 UTC
[jira] [Commented] (HIVE-5490) SUBSTR(col, 1, 0) returns wrong
result in vectorized mode
[ https://issues.apache.org/jira/browse/HIVE-5490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13790343#comment-13790343 ]
Teddy Choi commented on HIVE-5490:
----------------------------------
Review request on https://reviews.apache.org/r/14558/
> SUBSTR(col, 1, 0) returns wrong result in vectorized mode
> ---------------------------------------------------------
>
> Key: HIVE-5490
> URL: https://issues.apache.org/jira/browse/HIVE-5490
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.13.0
> Reporter: Eric Hanson
> Assignee: Teddy Choi
> Attachments: HIVE-5490.1.patch.txt
>
>
> The query
> select substr(cstring1, 1, 0) from alltypesorc;
> returns all empty strings when
> set hive.vectorized.execution.enabled = false;
> which is the correct result, and returns non-empty strings when
> set hive.vectorized.execution.enabled = true;
> which is not correct.
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