You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hbase.apache.org by "Andrew Kyle Purtell (Jira)" <ji...@apache.org> on 2022/06/11 23:59:00 UTC
[jira] [Resolved] (HBASE-10016) Make use of backward seek implemented in reverse scan support for range queries.
[ https://issues.apache.org/jira/browse/HBASE-10016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Kyle Purtell resolved HBASE-10016.
-----------------------------------------
Resolution: Incomplete
> Make use of backward seek implemented in reverse scan support for range queries.
> --------------------------------------------------------------------------------
>
> Key: HBASE-10016
> URL: https://issues.apache.org/jira/browse/HBASE-10016
> Project: HBase
> Issue Type: Sub-task
> Reporter: rajeshbabu
> Assignee: rajeshbabu
> Priority: Major
>
> We can use backward seek in case of range queries based on value.
> Example:
> Lets suppose main table data as below
> row1 : c
> row2 : b
> row3 : d
> Then in index table value will be part of rowkey.
> b: row2
> c :row1
> d: row3
> In this case first seek point we get from index table is row2 and next is row1.
> When the current seek point is less than previous seek point then we can use backward seek which will be supported in HBASE-4811(Support reverse Scan) which gives better performance than closing and reseek to the lesser rowkey.
--
This message was sent by Atlassian Jira
(v8.20.7#820007)