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Posted to issues@flink.apache.org by "sunjincheng (JIRA)" <ji...@apache.org> on 2017/02/14 13:17:42 UTC

[jira] [Updated] (FLINK-5792) Improve “UDF/UDTF" to support with parameter constructor

     [ https://issues.apache.org/jira/browse/FLINK-5792?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sunjincheng updated FLINK-5792:
-------------------------------
    Summary: Improve “UDF/UDTF" to support with parameter constructor  (was: Improve “UDTF" to support with parameter constructor)

> Improve “UDF/UDTF" to support with parameter constructor
> --------------------------------------------------------
>
>                 Key: FLINK-5792
>                 URL: https://issues.apache.org/jira/browse/FLINK-5792
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>
> Currently UDF/UDTF in the codegen phase using a nonparametric constructor to create the instance, causing the user can not include the state value in the UDF/UDTF. The UDF/UDTF's codegen phase can use a serialized mechanism so that the UDTF can contain state values.
> 1. UserDefinedFunction inherits Serializable.
> 2. Modify CodeGenerator about UDF/UDTF part.
> 3. Modify TableAPI about UDF/UDTF
> 4. Add Test.



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