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Posted to dev@hbase.apache.org by "Jonathan Gray (JIRA)" <ji...@apache.org> on 2009/10/01 03:11:23 UTC
[jira] Commented: (HBASE-1481) Add fast row key only scanning
[ https://issues.apache.org/jira/browse/HBASE-1481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12761067#action_12761067 ]
Jonathan Gray commented on HBASE-1481:
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I have an idea for this. Easy enough for 0.20.1 and 0.21. Patch coming soon.
> Add fast row key only scanning
> ------------------------------
>
> Key: HBASE-1481
> URL: https://issues.apache.org/jira/browse/HBASE-1481
> Project: Hadoop HBase
> Issue Type: Improvement
> Affects Versions: 0.19.3
> Reporter: Lars George
> Priority: Minor
> Fix For: 0.21.0
>
>
> Instead of requiring a user to set up a scanner with any column and scan the table to gather all row keys while ignoring the column value we should have a fast and lightweight scanner that for example takes a "null" for the column list and then simply returns only the matching keys of all non-empty or deleted rows. Filters should still be applicable.
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