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ql/src/java/org/apache/hadoop/hive/ql/parse/IdentifiersParser.g (line 434)
<https://reviews.apache.org/r/52427/#comment219166>

    Could u test if the precedence is correct w.r.t the other DBMS? If you put 
it here, it will be lower than */-, etc.



ql/src/test/queries/clientpositive/concat_op.q (line 1)
<https://reviews.apache.org/r/52427/#comment219167>

    Could you add more tests? For example, create views, joins, gby, union, || 
with other operators, esp, |, *, +.


- pengcheng xiong


On Sept. 30, 2016, 3:08 p.m., Zoltan Haindrich wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/52427/
> -----------------------------------------------------------
> 
> (Updated Sept. 30, 2016, 3:08 p.m.)
> 
> 
> Review request for hive, Ashutosh Chauhan and pengcheng xiong.
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> adds support for || text concatenation
> 
> * reuses the concat udf for doing the real work
> * same precedence as + / - ; I think this is expected
> * small ast rewrite code in SemanticAnalyzer
> 
> 
> Diffs
> -----
> 
>   ql/src/java/org/apache/hadoop/hive/ql/parse/HiveLexer.g 
> b623187a788a23eceb70a71de62671ad778a24b7 
>   ql/src/java/org/apache/hadoop/hive/ql/parse/IdentifiersParser.g 
> e6b70a0a0e328a27a808032857b8ecb7ecffeb64 
>   ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java 
> 747f3876b76de195fea78d87bfd98bd0ec2b87a0 
>   ql/src/test/queries/clientpositive/concat_op.q PRE-CREATION 
>   ql/src/test/results/clientpositive/concat_op.q.out PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/52427/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Zoltan Haindrich
> 
>

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