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https://issues.apache.org/jira/browse/FLINK-14789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kurt Young updated FLINK-14789:
-------------------------------
    Component/s:     (was: Table SQL / Planner)
                 Table SQL / API

> extends max/min type in ColumnStats from Number to Comparable
> -------------------------------------------------------------
>
>                 Key: FLINK-14789
>                 URL: https://issues.apache.org/jira/browse/FLINK-14789
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / API
>            Reporter: godfrey he
>            Assignee: godfrey he
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.10.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Many tpc-ds queries have predicates on date, like {{d_date between 
> '1999-02-01' and (cast('1999-02-01' as date) + INTERVAL '60' day)}}, It's 
> very useful to find a better plan if the planner knows the max/min values of 
> date. However, max/min in {{ColumnStats}} only support {{Number}} type 
> currently. This issue aims to extend max/min type from {{Number}} to 
> {{Comparable}}, and then {{Date}}, {{Time}}, {{Timestamp}} even {{String}} 
> could be supported.



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