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https://issues.apache.org/jira/browse/HBASE-2793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12885805#action_12885805
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Jonathan Gray commented on HBASE-2793:
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bq. I am not clear on the why the above difference. Any ideas?
QueryMatcher was used for Gets. ScanQueryMatcher is for Scans. Next row of a
get is done. QueryMatcher should actually be removed as we no longer (or
should no longer) use it directly. Some discussion of that in HBASE-2803.
You only need to worry about ScanQueryMatcher.
> Add ability to extract a specified list of versions of a column in a single
> roundtrip
> -------------------------------------------------------------------------------------
>
> Key: HBASE-2793
> URL: https://issues.apache.org/jira/browse/HBASE-2793
> Project: HBase
> Issue Type: New Feature
> Reporter: Kannan Muthukkaruppan
> Assignee: Kannan Muthukkaruppan
> Attachments: 2793_patch_v1.txt
>
>
> In one of the use cases we were looking at, each row contains a single
> column, but with several versions (e.g., each version representing an event
> in a log), and we want to be able to extract specific set of versions from
> the row in a single round-trip.
> Currently, on a Get, one can retrieve a specific version of a column using
> setTimeStamp(ts) or a range of versions using setTimeRange(min, max). But not
> a set of specified versions. It would be useful to add this ability.
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