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Hudson commented on HBASE-11990: -------------------------------- SUCCESS: Integrated in HBase-TRUNK #5640 (See [https://builds.apache.org/job/HBase-TRUNK/5640/]) HBASE-11990 Make setting the start and stop row for a specific prefix easier (Niels Basjes) (stack: rev 0eb0721fef8723640b5c3b911b06f0d066d4b55f) * hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestScanRowPrefix.java * hbase-server/src/test/java/org/apache/hadoop/hbase/filter/TestFilterWithScanLimits.java * hbase-server/src/test/java/org/apache/hadoop/hbase/filter/FilterTestingCluster.java * hbase-client/src/main/java/org/apache/hadoop/hbase/client/Scan.java * src/main/docbkx/book.xml > Make setting the start and stop row for a specific prefix easier > ---------------------------------------------------------------- > > Key: HBASE-11990 > URL: https://issues.apache.org/jira/browse/HBASE-11990 > Project: HBase > Issue Type: New Feature > Components: Client > Reporter: Niels Basjes > Fix For: 2.0.0, 0.99.1 > > Attachments: 11990v4.txt, HBASE-11990-20140916-v2.patch, > HBASE-11990-20140916-v3.patch, HBASE-11990-20140916-v5.patch, > HBASE-11990-20140916-v6.patch, HBASE-11990-20140916.patch, > HBASE-11990-20140917-v7.patch, HBASE-11990-20140919-v8.patch, > HBASE-11990-20140921-v9.patch, HBASE-11990-20140923-v10.patch, > HBASE-11990-20140923-v10.patch, HBASE-11990-20141009-v11.patch > > > If you want to set a scan from your application to scan for a specific row > prefix this is actually quite hard. > As described in several places you can set the startRow to the prefix; yet > the stopRow should be set to the prefix '+1' > If the prefix 'ASCII' put into a byte[] then this is easy because you can > simply increment the last byte of the array. > But if your application uses real binary rowids you may run into the scenario > that your prefix is something like > {code}{ 0x12, 0x23, 0xFF, 0xFF }{code} Then the increment should be {code}{ > 0x12, 0x24 }{code} > I have prepared a proposed patch that makes setting these values correctly a > lot easier. -- This message was sent by Atlassian JIRA (v6.3.4#6332)