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https://issues.apache.org/jira/browse/HBASE-25444?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junsheng Tan updated HBASE-25444:
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Description:
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`?
was:
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`?
> 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
> 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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