rajeshbabu created HBASE-10016:
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Summary: 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
Fix For: 0.98.0
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.
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