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Posted to issues@flink.apache.org by "Kurt Young (JIRA)" <ji...@apache.org> on 2019/01/30 10:41:00 UTC

[jira] [Closed] (FLINK-9475) introduce an approximate version of "select distinct"

     [ https://issues.apache.org/jira/browse/FLINK-9475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kurt Young closed FLINK-9475.
-----------------------------
    Resolution: Unresolved

> introduce an approximate version of "select distinct"
> -----------------------------------------------------
>
>                 Key: FLINK-9475
>                 URL: https://issues.apache.org/jira/browse/FLINK-9475
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API &amp; SQL
>    Affects Versions: 1.5.0
>            Reporter: Sihua Zhou
>            Assignee: Sihua Zhou
>            Priority: Major
>
> Base on the "Elastic Bloom Filter", it easy to implement an approximate version of "select distinct" that have an excellent performance. Its accuracy should be configurable, e.g. 95%, 98%.



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