[jira] [Updated] (FLINK-6637) Move registerFunction to TableEnvironment

["Shaoxuan Wang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-6637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shaoxuan Wang updated FLINK-6637:
---------------------------------
    Component/s: Table API & SQL

> Move registerFunction to TableEnvironment
> -----------------------------------------
>
>                 Key: FLINK-6637
>                 URL: https://issues.apache.org/jira/browse/FLINK-6637
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: Shaoxuan Wang
>            Assignee: Shaoxuan Wang
>
> We are trying to unify the stream and batch. This unification should cover the tableAPI&SQL query as well as the function registration (as part of DDL). 
> Currently the registerFunction for UDTF and UDAGG are defined in BatchTableEnvironment and StreamTableEnvironment separately.  We should move registerFunction to TableEnvironment.
> The reason that we did not put registerFunction into TableEnvironment for UDTF and UDAGG is that we need different registerFunction for java and scala codes, as java needs a special way to generate and pass implicit value of typeInfo:
> {code:xml}
>     implicit val typeInfo: TypeInformation[T] = TypeExtractor
>       .createTypeInfo(tf, classOf[TableFunction[_]], tf.getClass, 0)
>       .asInstanceOf[TypeInformation[T]]
> {code}
> It seems that we need duplicate TableEnvironment class, one for java and one for scala.



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