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https://issues.apache.org/jira/browse/FLINK-5795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15874287#comment-15874287
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ASF GitHub Bot commented on FLINK-5795:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3330#discussion_r101974425
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/ScalarFunction.scala
---
@@ -56,8 +58,10 @@ abstract class ScalarFunction extends
UserDefinedFunction {
ScalarFunctionCall(this, params)
}
- override def toString: String = getClass.getCanonicalName
-
+ override def toString: String = {
+ val md5 = DigestUtils.md5Hex(serialize(this))
--- End diff --
I think this is dangerous.
The function might be overridden by a UDF.
Rather add a new `final` method.
> Improve “UDTF" to support constructor with parameter.
> -----------------------------------------------------
>
> Key: FLINK-5795
> URL: https://issues.apache.org/jira/browse/FLINK-5795
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: sunjincheng
> Assignee: sunjincheng
>
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