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https://issues.apache.org/jira/browse/FLINK-3579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15198732#comment-15198732
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ASF GitHub Bot commented on FLINK-3579:
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GitHub user ramkrish86 opened a pull request:
https://github.com/apache/flink/pull/1808
[FLINK-3579] Improve String concatenation
I think this time I got the PR correctly. Last time I did not select the
right branch while creating the PR but the code was created with tableOnCalcite
branch. Sorry about that.
As said in JIRA I have some doubts with that 'cast' operator change becasue
the parser itself was written with **'.cast(BYTE)'** etc. where the **.**
operator was explicit.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ramkrish86/flink FLINK-3579_tableOnCalcite
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1808.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1808
----
commit 2b1a2b2af4b9535dfa7802cdadf0b96678abc3b3
Author: ramkrishna <ramkrishna.s.vasude...@gmail.com>
Date: 2016-03-17T04:45:43Z
[FLINK-3579] Improve String concatenation
----
> Improve String concatenation
> ----------------------------
>
> Key: FLINK-3579
> URL: https://issues.apache.org/jira/browse/FLINK-3579
> Project: Flink
> Issue Type: Bug
> Components: Table API
> Reporter: Timo Walther
> Assignee: ramkrishna.s.vasudevan
> Priority: Minor
>
> Concatenation of a String and non-String does not work properly.
> e.g. {{f0 + 42}} leads to RelBuilder Exception
> ExpressionParser does not like {{f0 + 42.cast(STRING)}} either.
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