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Posted to issues@hbase.apache.org by "wenfeiyi666 (Jira)" <ji...@apache.org> on 2020/12/25 08:41:00 UTC

[jira] [Assigned] (HBASE-25444) Add a filter with containing semantic

     [ https://issues.apache.org/jira/browse/HBASE-25444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

wenfeiyi666 reassigned HBASE-25444:
-----------------------------------

    Assignee: wenfeiyi666

> Add a filter with containing semantic
> -------------------------------------
>
>                 Key: HBASE-25444
>                 URL: https://issues.apache.org/jira/browse/HBASE-25444
>             Project: HBase
>          Issue Type: New Feature
>          Components: Filters
>    Affects Versions: 3.0.0-alpha-1
>            Reporter: Junsheng Tan
>            Assignee: wenfeiyi666
>            Priority: Major
>
> Say we want to check whether a cell value is within a set of values.
> If the size of the set is 1000, we need to create 1000 SingleColumnValueFilter with CompareOperator.EQUAL and wrap them with a FilterListWithOR. The scan performance of these filters would be very bad.
> But if we have a set filter, we just need to create only one filter with 1000 values.  And the containing operation could be implemented as O(1) or O(log( n )).
> This `SetFilter` is general and useful in my opinion, so would the community consider to implement a `SetFilter`?



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