Rong Rong created FLINK-9484:
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Summary: Improve generic type inference for User-Defined Functions
Key: FLINK-9484
URL: https://issues.apache.org/jira/browse/FLINK-9484
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Reporter: Rong Rong
Assignee: Rong Rong
User-defined function has been a great extension for Flink SQL API to support
much complex logics.
We experienced many inconvenience when dealing with UDF with generic types and
are summarized in the following
[doc|https://docs.google.com/document/d/1zKSY1z0lvtQdfOgwcLnCMSRHew3weeJ6QfQjSD0zWas/edit?usp=sharing].
We are planning to implement the generic type inference / functioncatalog look
up in multiple phases. Detail tickets will be created.
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