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https://issues.apache.org/jira/browse/HBASE-4256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149878#comment-13149878
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Dave Revell commented on HBASE-4256:
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I've started work on this and I'm having trouble deciding on the best
interface. I can see a couple ways that it might work:
1. Add Scan.setStartQualifier() and Scan.setEndQualifier(). What if the user
also uses addColumn(), would we fetch those columns also?
2. Add Scan.addColumnRange(byte[] start, byte[] end). Could the user specify
multiple (possibly overlapping) ranges? Again, would this conflict with
addColumn()?
Any input would be appreciated.
> Intra-row scanning (part deux)
> ------------------------------
>
> Key: HBASE-4256
> URL: https://issues.apache.org/jira/browse/HBASE-4256
> Project: HBase
> Issue Type: New Feature
> Affects Versions: 0.90.4
> Reporter: Jean-Daniel Cryans
> Assignee: Dave Revell
> Priority: Critical
> Fix For: 0.94.0
>
>
> Dave Revell was asking on IRC today if there's a way to scan ranges of
> *qualifiers* within a row. That is, to be able to specify a *start qualifier*
> and an *end qualifier* so that the Get or Scan seeks directly to the first
> qualifier and stops at some point which can be predeterminate by a qualifier
> or simply a batch configuration (already exists).
> This is particularly useful for large rows with time-based qualifiers.
> Dave also mentioned that another popular database has such a feature that
> they call "column slices".
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