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https://issues.apache.org/jira/browse/HBASE-1517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751307#action_12751307
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stack commented on HBASE-1517:
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I don't think this belongs in 0.20.1. Move it out?
> Implement inexpensive seek operations in HFile
> ----------------------------------------------
>
> Key: HBASE-1517
> URL: https://issues.apache.org/jira/browse/HBASE-1517
> Project: Hadoop HBase
> Issue Type: Improvement
> Affects Versions: 0.20.0
> Reporter: Jonathan Gray
> Fix For: 0.20.1
>
>
> When we early-out of a row because of columns, versions, filters, etc... we
> seek to the end of that row one key at a time. We should do the seek at the
> HFile level in cases where we would end up skipping blocks in the process.
> This will be very common in cases with relatively large rows and regex row
> filters.
> If calls that end up doing nothing are constant time, we could also call this
> to seek to the next column (or even a specific column in ExplicitTracker
> case).
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