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https://issues.apache.org/jira/browse/FLINK-13773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-13773:
-----------------------------------
Labels: auto-deprioritized-major stale-minor (was:
auto-deprioritized-major)
I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help
the community manage its development. I see this issues has been marked as
Minor but is unassigned and neither itself nor its Sub-Tasks have been updated
for 180 days. I have gone ahead and marked it "stale-minor". If this ticket is
still Minor, please either assign yourself or give an update. Afterwards,
please remove the label or in 7 days the issue will be deprioritized.
> Rework of the Expression Design
> -------------------------------
>
> Key: FLINK-13773
> URL: https://issues.apache.org/jira/browse/FLINK-13773
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Jingsong Lee
> Priority: Minor
> Labels: auto-deprioritized-major, stale-minor
>
> This JIRA addresses several shortcomings of current:
> - New Expressions still use PlannerExpressions to type inference and
> to RexNode. Flnk-planner and blink-planner have a lot of repetitive code
> and logic.
> - Let TableApi and Cacite definitions consistent.
> - Reduce the complexity of Function development.
> - Powerful Function for user.
>
> Key changes can be summarized as follows:
> - Improve the interface of FunctionDefinition.
> - Introduce type inference for built-in functions.
> - Introduce ExpressionConverter to convert Expression to calcite
> RexNode.
> - Remove repetitive code and logic in planners.
>
> Details:
> [https://cwiki.apache.org/confluence/display/FLINK/FLIP-51%3A+Rework+of+the+Expression+Design]
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