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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-9977) Refine the docs for Table/SQL built-in functions
Date Thu, 09 Aug 2018 16:22:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-9977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16575087#comment-16575087

ASF GitHub Bot commented on FLINK-9977:

xccui opened a new pull request #6535: [FLINK-9977] [table][doc] Refine the SQL/Table built-in
function docs
URL: https://github.com/apache/flink/pull/6535
   ## What is the purpose of the change
   This PR refines the documentation for all the SQL/Table built-in functions.
   ## Brief change log
     - Merge the docs for SQL/Table built-in functions into a new separate page (functions.html).
     - Rewrite most of the docs to try to make them consistent and correct.
     - Refine the corresponding test cases in `SqlExpressionTest.scala`.
   **Note: The old docs about built-in functions in sql.html and tableApi.html should be removed
after the new page being verified.**
   ## Verifying this change
   This change is a trivial rework / code cleanup without any test coverage.
   ## Does this pull request potentially affect one of the following parts:
     - Dependencies (does it add or upgrade a dependency): (no)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no)
     - The serializers: (no)
     - The runtime per-record code paths (performance sensitive): (no)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing,
Yarn/Mesos, ZooKeeper: (no)
     - The S3 file system connector: (no)
   ## Documentation
     - Does this pull request introduce a new feature? (no)
     - If yes, how is the feature documented? (docs)

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> 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
>              Labels: pull-request-available
>         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, according to FLINK-10103, we should use single quotes to express strings in SQL.
For example, CONCAT("AA", "BB", "CC") should be replaced with CONCAT('AA', 'BB', 'CC'). 

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