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https://issues.apache.org/jira/browse/PHOENIX-7664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Viraj Jasani resolved PHOENIX-7664.
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Resolution: Fixed
> Remove EmptyColumnOnlyFilter and FirstKeyOnlyFilter for CDC scanners
> --------------------------------------------------------------------
>
> Key: PHOENIX-7664
> URL: https://issues.apache.org/jira/browse/PHOENIX-7664
> Project: Phoenix
> Issue Type: Bug
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Fix For: 5.3.0
>
>
> CDC Scanners like other Global index scanners attempt to remove
> EmptyColumnOnlyFilter and FirstKeyOnlyFilter from the scan, however it is not
> enough when EmptyColumnOnlyFilter or FirstKeyOnlyFilter is used with other
> filters e.g. PageFilter with LIMIT.
> For CDC queries, the user initiated upsert and delete statements do not face
> any issues as the scan on the uncovered index is only expected to retrieve
> empty column cell. However, it does not work when we need to retrieve more
> cells than just empty column e.g. "_CDC_IMG_" column cell should be returned
> by the delegate scanner for TTL expired CDC events.
> The purpose of this Jira is to remove the filters even when they are used in
> combination with others.
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