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https://issues.apache.org/jira/browse/HBASE-5241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13210076#comment-13210076
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Lars Hofhansl commented on HBASE-5241:
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Need to think about HBASE-4536 as well. The main problem there was to work out
when it is safe to delete the (family) delete markers - the solution was to
store the smallest TS of any Put KV in the store file's metadata. I think that
method should still work with your change.
> Deletes should not mask Puts that come after it.
> ------------------------------------------------
>
> Key: HBASE-5241
> URL: https://issues.apache.org/jira/browse/HBASE-5241
> Project: HBase
> Issue Type: Improvement
> Reporter: Amitanand Aiyer
> Assignee: Amitanand Aiyer
> Attachments: HBASE-5241.D1731.1.patch, HBASE-5241.D1731.2.patch,
> HBASE-5241.D1731.3.patch
>
>
> Suppose that we have a delete row, and then followed by the put. The delete
> row
> can mask the put, unless there was a major compaction in between.
> Now that we are flushing the memstoreTS to disk, along with the KVs, we
> should be able
> to differentiate whether or not the Put happened after the Delete and offer
> better
> delete semantics.
> Couldn't find a pre-existing JIRA that already discusses this, so creating
> one.
> Seems related to https://issues.apache.org/jira/browse/HBASE-2406, but is not
> quite the same.
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