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https://issues.apache.org/jira/browse/HBASE-8809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vasu Mariyala updated HBASE-8809:
---------------------------------

    Attachment: DeleteMarkers.doc

Attaching the document which explains the behavior of the api with respect to 
different parameters (raw on scan object, keep deleted cells and scan type). 
Have a question about the behavior of the api when keep deleted cells is false 
and setRaw is true for a user scan. (The current behavior is it includes the 
delete markers)
                
> Include deletes in the scan (setRaw) method does not respect the time range 
> or the filter
> -----------------------------------------------------------------------------------------
>
>                 Key: HBASE-8809
>                 URL: https://issues.apache.org/jira/browse/HBASE-8809
>             Project: HBase
>          Issue Type: Bug
>          Components: Scanners
>            Reporter: Vasu Mariyala
>            Assignee: Lars Hofhansl
>             Fix For: 0.98.0, 0.95.2, 0.94.10
>
>         Attachments: 8809-0.94.txt, 8809-trunk.txt, DeleteMarkers.doc
>
>
> If a row has been deleted at time stamp 'T' and a scan with time range (0, 
> T-1) is executed, it still returns the delete marker at time stamp 'T'. It is 
> because of the code in ScanQueryMatcher.java
> {code}
>       if (retainDeletesInOutput
>           || (!isUserScan && (EnvironmentEdgeManager.currentTimeMillis() - 
> timestamp) <= timeToPurgeDeletes)
>           || kv.getMemstoreTS() > maxReadPointToTrackVersions) {
>         // always include or it is not time yet to check whether it is OK
>         // to purge deltes or not
>         return MatchCode.INCLUDE;
>       }
> {code}
> The assumption is scan (even with setRaw is set to true) should respect the 
> filters and the time range specified.
> Please let me know if you think this behavior can be changed so that I can 
> provide a patch for it.

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