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https://issues.apache.org/jira/browse/FLINK-15803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17167322#comment-17167322
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Timo Walther commented on FLINK-15803:
--------------------------------------
Fixed in 1.12.0:
{code}
b7e1574164209cc6deee4304b23854f3bc24825c
[FLINK-15803][table] Update AggregateFunction and TableAggregateFunction to the
new type system
This updates imperative aggregate functions AggregateFunction and
TableAggregateFunction
to the new type system with new type inference. The new stack is activated when
using
TableEnvironment.createTemporarySystemFunction or call(Class, ...) in Table
API. Other
locations (SQL DDL, Table API Scala implicits) will be updated once we support
the
concept of DataView as well. Currently, DataViews are not supported.
{code}
> Expose the new type inference for aggregate functions
> -----------------------------------------------------
>
> Key: FLINK-15803
> URL: https://issues.apache.org/jira/browse/FLINK-15803
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API, Table SQL / Planner
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: pull-request-available
>
> This will allow to use aggregate functions with the new type inference. It
> requires different changes through the stack. This should be implemented
> after we have support for structured types. It also includes a long-term
> solution for the concept of DataViews with the new type system.
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