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From "xueyu (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (FLINK-10689) Port UDFs in Table API extension points to flink-table-common
Date Fri, 02 Nov 2018 08:56:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-10689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16672778#comment-16672778
] 

xueyu edited comment on FLINK-10689 at 11/2/18 8:55 AM:
--------------------------------------------------------

Thanks [~phoenixjiangnan],

It looks that _org.apache.flink.table.functions.ScalarFunction_ seems depend on table _Expression_
. Do we need to migrate ScalarFunction or migrate to avoid table Expression 
 depend or any other suggestions? I am not sure whether I understand correctly.. thanks, [~twalthr]
[~phoenixjiangnan]


{code:java}
  final def apply(params: Expression*): Expression = {
    ScalarFunctionCall(this, params)
  }
{code}




was (Author: xueyu):
Thanks [~phoenixjiangnan],

It looks that _org.apache.flink.table.functions.ScalarFunction_ seems depend on table _Expression_
. Do we need to migrate ScalarFunction to avoid Expression depend or any other suggestions?
I am not sure whether I understand correctly.. thanks, [~twalthr][~phoenixjiangnan]


{code:java}
  final def apply(params: Expression*): Expression = {
    ScalarFunctionCall(this, params)
  }
{code}



> Port UDFs in Table API extension points to flink-table-common
> -------------------------------------------------------------
>
>                 Key: FLINK-10689
>                 URL: https://issues.apache.org/jira/browse/FLINK-10689
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API &amp; SQL
>            Reporter: Timo Walther
>            Assignee: xueyu
>            Priority: Major
>             Fix For: 1.8.0
>
>
> After FLINK-10687 and FLINK-10688 have been resolved, we should also port the remaining
extension points of the Table API to flink-table-common. This includes interfaces for UDFs
and the external catalog interface.
> This ticket is for porting UDFs. This jira does NOT depend on FLINK-16088 so it can
be started at anytime.



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