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Posted to issues@flink.apache.org by "Kurt Young (JIRA)" <ji...@apache.org> on 2019/04/08 03:22:00 UTC

[jira] [Closed] (FLINK-12081) Introduce aggregation operator code generator to blink batch

     [ https://issues.apache.org/jira/browse/FLINK-12081?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kurt Young closed FLINK-12081.
------------------------------
       Resolution: Implemented
    Fix Version/s: 1.9.0

fixed in 518cf6a10ba105d655de738ce5fccc5fffc8e8a6

> Introduce aggregation operator code generator to blink batch
> ------------------------------------------------------------
>
>                 Key: FLINK-12081
>                 URL: https://issues.apache.org/jira/browse/FLINK-12081
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table SQL / Planner
>            Reporter: Jingsong Lee
>            Assignee: Jingsong Lee
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.9.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> 1.Introduce aggregation code generator without keys.
> 2.Introduce sort aggregation code generator to deal with all aggregate functions with keys. (Require input in keys order.)
> 3.Introduce hash aggregation code generator to deal with DeclarativeAggregateFunction and aggregateBuffers can be update(e.g.: setInt) in BinaryRow. (Hash Aggregate performs much better than Sort Aggregate)



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