[jira] [Commented] (TAJO-1997) Registering UDF, it needs to check duplication

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-1997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15055271#comment-15055271 ] 

ASF GitHub Bot commented on TAJO-1997:
--------------------------------------

Github user jihoonson commented on a diff in the pull request:

    https://github.com/apache/tajo/pull/883#discussion_r47456204
  
    --- Diff: tajo-catalog/tajo-catalog-common/src/main/java/org/apache/tajo/catalog/FunctionDesc.java ---
    @@ -167,6 +171,13 @@ public boolean equals(Object obj) {
         }
         return false;
       }
    +
    +  public boolean equalsSignature(Object obj) {
    --- End diff --
    
    Please remove the unused method.


> Registering UDF, it needs to check duplication
> ----------------------------------------------
>
>                 Key: TAJO-1997
>                 URL: https://issues.apache.org/jira/browse/TAJO-1997
>             Project: Tajo
>          Issue Type: Sub-task
>          Components: Function/UDF
>    Affects Versions: 0.11.0
>            Reporter: Jongyoung Park
>            Assignee: Jongyoung Park
>            Priority: Minor
>
> Currently, Tajo doesn't check UDF signature whether it is duplicated with built-in functions.



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