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https://issues.apache.org/jira/browse/HIVE-5490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13792599#comment-13792599
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Hudson commented on HIVE-5490:
------------------------------
FAILURE: Integrated in Hive-trunk-h0.21 #2392 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/2392/])
HIVE-5490 : SUBSTR(col, 1, 0) returns wrong result in vectorized mode (Teddy
Choi via Ashutosh Chauhan) (hashutosh:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1531035)
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/StringSubstrColStartLen.java
*
/hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/exec/vector/expressions/TestVectorStringExpressions.java
> 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
> Fix For: 0.13.0
>
> 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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