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https://issues.apache.org/jira/browse/FLINK-12533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hequn Cheng closed FLINK-12533.
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Resolution: Duplicate
> Introduce TABLE_AGGREGATE_FUNCTION FunctionDefinition.Type
> ----------------------------------------------------------
>
> Key: FLINK-12533
> URL: https://issues.apache.org/jira/browse/FLINK-12533
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Hequn Cheng
> Assignee: Hequn Cheng
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Currently, there are four kinds of {{FunctionDefinition.Type}},
> {code:java}
> public enum Type {
> AGGREGATE_FUNCTION,
> SCALAR_FUNCTION,
> TABLE_FUNCTION,
> OTHER_FUNCTION
> }
> {code}
> The Type AGGREGATE_FUNCTION is used to express both AggregateFunction and
> TableAggregateFunction. However, due to the two kinds of the function
> contains different semantics. It would be nice if we can separate these two
> kinds of functions more clearly by introducing another type
> TABLE_AGGREGATE_FUNCTION.
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