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https://issues.apache.org/jira/browse/FLINK-9977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xingcan Cui updated FLINK-9977:
-------------------------------
    Description: 
There exist some syntax errors or inconsistencies in documents and Scala docs 
of the Table/SQL built-in functions. This issue aims to make some improvements 
to them.

Also, from FLINK we should use {{'}} instead of {{"}} to express string in SQL. 
For example, CONCAT('AA', 'BB', 'CC') should be replaced with CONCAT("AA", 
"BB", "CC"). 

  was:There exist some syntax errors or inconsistencies in documents and Scala 
docs of the Table/SQL built-in functions. This issue aims to make some 
improvements to them.


> Refine the docs for Table/SQL built-in functions
> ------------------------------------------------
>
>                 Key: FLINK-9977
>                 URL: https://issues.apache.org/jira/browse/FLINK-9977
>             Project: Flink
>          Issue Type: Improvement
>          Components: Documentation
>            Reporter: Xingcan Cui
>            Assignee: Xingcan Cui
>            Priority: Minor
>         Attachments: Java.jpg, SQL.jpg, Scala.jpg
>
>
> There exist some syntax errors or inconsistencies in documents and Scala docs 
> of the Table/SQL built-in functions. This issue aims to make some 
> improvements to them.
> Also, from FLINK we should use {{'}} instead of {{"}} to express string in 
> SQL. For example, CONCAT('AA', 'BB', 'CC') should be replaced with 
> CONCAT("AA", "BB", "CC"). 



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