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https://issues.apache.org/jira/browse/FLINK-12924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-12924:
-----------------------------------
Labels: pull-request-available (was: )
> Introduce basic type inference interfaces
> -----------------------------------------
>
> Key: FLINK-12924
> URL: https://issues.apache.org/jira/browse/FLINK-12924
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
> Labels: pull-request-available
>
> This issue introduces basic interfaces for performing type inference. It
> includes validation of input types and deduction of accumulator or return
> types. Argument type inference (i.e. deducing a type for {{NULL}}) will be
> introduced in a later step. The interfaces replace the need for
> {{PlannerExpression}}.
> A rough design document can be found here but it needs some update.
> Introduction of annotations and basic type extraction will come later:
> [https://docs.google.com/document/d/1RM_-XvD25AldUOl7xRSvA3sascWBa1-Jze3i5mvb7WU/edit#heading=h.kwyjplavecx4]
>
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