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https://issues.apache.org/jira/browse/HBASE-9769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13796331#comment-13796331
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Vladimir Rodionov commented on HBASE-9769:
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Its a server-side filter and is not meant to be exposed to HBase client. The
reason: it has only list of qualifiers - no columns. It is instantiated in
StoreScanner. If Scan has already filter, the new FilterList is created with
MUST_PASS_ALL operator. First goes ExplicitColumnsFilter then existing filter.
> Improve performance of a Scanner with explicit column list when rows are
> small/medium size
> ------------------------------------------------------------------------------------------
>
> Key: HBASE-9769
> URL: https://issues.apache.org/jira/browse/HBASE-9769
> Project: HBase
> Issue Type: Improvement
> Components: Scanners
> Affects Versions: 0.98.0, 0.94.12, 0.96.0
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
>
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