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From "Sihua Zhou (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-9475) introduce an approximate version of "select distinct"
Date Wed, 30 May 2018 05:39:00 GMT
Sihua Zhou created FLINK-9475:
---------------------------------

             Summary: 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


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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