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Duo Zhang resolved HBASE-26762. ------------------------------- Hadoop Flags: Reviewed Resolution: Fixed Pushed to branch-2.5+. Thanks [~nielsbasjes] for contributing! Please fill the release note. > Scan#setRowPrefixFilter incorrectly marked as deprecated > -------------------------------------------------------- > > Key: HBASE-26762 > URL: https://issues.apache.org/jira/browse/HBASE-26762 > Project: HBase > Issue Type: Bug > Components: Client, scan > Affects Versions: 3.0.0-alpha-2 > Reporter: Niels Basjes > Assignee: Niels Basjes > Priority: Major > > Issue HBASE-25299 is about the Scan#setRowPrefixFilter having not the > expected effects when using also the setStartRow and/or setStopRow. > The setRowPrefixFilter is intended to make setting the right startRow and > stopRow for prefix scans. So it was always intended of using it *instead* of > doing separate setStartRow and/or setStopRow calls. > The reason for adding this to the Scan (~ 8 years ago, HBASE-11990 ) was that > calculating the correct start and stop row for doing the very efficient > prefix scan is very very hard to do right in the generic case. > This is still a current usecase and many of my applications rely on this > function (I even prefer the HBase Client when connecting to Google BigTable > for this method). > With issue HBASE-25299 it has now been marked as deprecated. > Quote from the changes made in HBASE-25299: > {code} > @deprecated since 3.0.0. The scan result might be unexpected in some cases. > {code} > Yes, if you use this very valuable method incorrectly it will yield incorrect > results. > I do not consider this a valid reason to deprecate it. > So I do agree with the confusion of the effects as described in HBASE-25299 > which should be fixed with additional documentation. > I disagree with the deprecation of this method. > > I'll put up a pull request in which I improve the documentation and remove > the deprecation. -- This message was sent by Atlassian Jira (v8.20.1#820001)