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https://issues.apache.org/jira/browse/HBASE-8809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13701279#comment-13701279
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Lars Hofhansl commented on HBASE-8809:
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The trick with delete markers is that they do not increase the count of the
normal KVs they intermingle with in order to disturb that counting (and in any
case, all delete markers need to be considered regardless of how many there
are).
TL;DR: you are right. :)
> 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: 8806-trunk-addendum.txt, 8809-0.94.txt, 8809-trunk.txt,
> DeleteMarkers.doc, hbase-8809-0.94-addendum-example.patch,
> hbase-8809-addendum-0.94-v0.patch
>
>
> 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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