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https://issues.apache.org/jira/browse/HIVE-14580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15601822#comment-15601822
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Zoltan Haindrich commented on HIVE-14580:
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[~leftylev], [~pxiong] - AFAIK there is no || or && logical operators...so i've
removed them from the docs...i've peeked into branch-1; but i think there isn't
any on that branch either...so I guess this was planned at some time; but never
implemented.
I think i've added the "needed" documentation for this operator.
I've also added some first version of the precedence table:
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-Operatorsprecedences
> Introduce || operator
> ---------------------
>
> Key: HIVE-14580
> URL: https://issues.apache.org/jira/browse/HIVE-14580
> Project: Hive
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.1.0
> Reporter: Ashutosh Chauhan
> Assignee: Zoltan Haindrich
> Labels: TODOC2.2
> Fix For: 2.2.0
>
> Attachments: HIVE-14580.1.patch, HIVE-14580.2.patch,
> HIVE-14580.3.patch, HIVE-14580.4.patch
>
>
> Functionally equivalent to concat() udf. But standard allows usage of || for
> string concatenations.
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