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https://issues.apache.org/jira/browse/FLINK-12710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17323260#comment-17323260
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Flink Jira Bot commented on FLINK-12710:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Unify built-in and user-defined functions in the API modules
> ------------------------------------------------------------
>
> Key: FLINK-12710
> URL: https://issues.apache.org/jira/browse/FLINK-12710
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / API
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: pull-request-available, stale-assigned
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Currently, there are three completely different stacks of functions: Table
> API builtins, SQL builtins, and user-defined types.
> Both the Blink and the legacy planner define a separate list of functions and
> implementations with different type system and type checking logic.
> The long-term goal of this issue is to unify all 6 different stacks into a
> common one. This includes better support for type inference which relates to
> FLINK-12251.
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