[ https://issues.apache.org/jira/browse/HBASE-18747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16182069#comment-16182069 ]
Duo Zhang commented on HBASE-18747: ----------------------------------- HBASE-18446 I think. > Introduce new example and helper classes to tell CP users how to do filtering > on scanners > ----------------------------------------------------------------------------------------- > > Key: HBASE-18747 > URL: https://issues.apache.org/jira/browse/HBASE-18747 > Project: HBase > Issue Type: Sub-task > Components: Coprocessors > Reporter: Duo Zhang > Priority: Critical > Fix For: 2.0.0-alpha-4 > > > Finally we decided that CP users should not have the ability to create > {{StoreScanner}} or {{StoreFileScanner}}, so it is impossible for them to > filter out some cells when flush or compaction by simply provide a filter > when constructing {{StoreScanner}}. > But I think filtering out some cells is a very important usage for CP users, > so we need to provide the ability in another way. Theoretically it can be > done with wrapping an {{InternalScanner}}, but I think we need to give an > example, or even some helper classes to help CP users. -- This message was sent by Atlassian JIRA (v6.4.14#64029)