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Posted to issues@flink.apache.org by "Sihua Zhou (JIRA)" <ji...@apache.org> on 2018/06/27 13:59:00 UTC

[jira] [Updated] (FLINK-9474) Add runtime support of distinct filter using ElasticBloomFilter

     [ https://issues.apache.org/jira/browse/FLINK-9474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sihua Zhou updated FLINK-9474:
------------------------------
    Summary: Add runtime support of distinct filter using ElasticBloomFilter  (was: Introduce an approximate version of "count distinct")

> Add runtime support of distinct filter using ElasticBloomFilter
> ---------------------------------------------------------------
>
>                 Key: FLINK-9474
>                 URL: https://issues.apache.org/jira/browse/FLINK-9474
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API &amp; SQL
>    Affects Versions: 1.5.0
>            Reporter: Sihua Zhou
>            Assignee: Sihua Zhou
>            Priority: Major
>
> We can implement an approximate version of "count distinct" base on the "Elastic Bloom Filter", It could be very fast because we don't need to query the state anymore, its accuracy should could be configurable. e.g 95%, 98%.



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