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Daniel Voros commented on SQOOP-3267: ------------------------------------- I'm linking this to SQOOP-3276, where we can implement the null-string part. > Incremental import to HBase deletes only last version of column > --------------------------------------------------------------- > > Key: SQOOP-3267 > URL: https://issues.apache.org/jira/browse/SQOOP-3267 > Project: Sqoop > Issue Type: Bug > Components: hbase-integration > Affects Versions: 1.4.7 > Reporter: Daniel Voros > Assignee: Daniel Voros > Priority: Major > Attachments: SQOOP-3267.1.patch > > > Deletes are supported since SQOOP-3149, but we're only deleting the last > version of a column when the corresponding cell was set to NULL in the source > table. > This can lead to unexpected and misleading results if the row has been > transferred multiple times, which can easily happen if it's being modified on > the source side. > Also SQOOP-3149 is using a new Put command for every column instead of a > single Put per row as before. This could probably lead to a performance drop > for wide tables (for which HBase is otherwise usually recommended). > [~jilani], [~anna.szonyi] could you please comment on what you think would be > the expected behavior here? -- This message was sent by Atlassian JIRA (v7.6.3#76005)