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https://issues.apache.org/jira/browse/HBASE-7474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13547471#comment-13547471
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Ted Yu commented on HBASE-7474:
-------------------------------
For SortingProtocol:
{code}
+ <T> Result[] sortIncreasing(Scan scan, byte[] columnFamily, byte[]
columnQualifier,
{code}
I think sortAscending would be more familiar to people who have worked with
RDBMS.
{code}
+ <T> Result[] sortDecreasing(Scan scan, byte[] columnFamily, byte[]
columnQualifier,
{code}
sortDescending would be a better method name.
{code}
+ * @param singleRegion does this scan request spans multiple regions?
{code}
spelling: 'spans' -> 'span'
Looking at SortingProtocolImplementation.sortIncreasing(), singleRegion is not
referenced in the loop - we scan until there is no more row. Some clarification
is needed in javadoc and variable name.
> Endpoint Implementation to support Scans with Sorting of Rows based on column
> values(similar to "order by" clause of RDBMS)
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-7474
> URL: https://issues.apache.org/jira/browse/HBASE-7474
> Project: HBase
> Issue Type: New Feature
> Components: Coprocessors, Scanners
> Affects Versions: 0.94.3
> Reporter: Anil Gupta
> Priority: Minor
> Labels: coprocessors, scan, sort
> Fix For: 0.94.5
>
> Attachments: hbase-7474.patch, hbase-7474-v2.patch,
> SortingEndpoint_high_level_flowchart.pdf
>
>
> Recently, i have developed an Endpoint which can sort the Results(rows) on
> the basis of column values. This functionality is similar to "order by"
> clause of RDBMS. I will be submitting this Patch for HBase0.94.3
> I am almost done with the initial development and testing of feature. But, i
> need to write the JUnits for this. I will also try to make design doc.
> Thanks,
> Anil Gupta
> Software Engineer II, Intuit, inc
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