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https://issues.apache.org/jira/browse/HBASE-5339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201255#comment-13201255
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Lars George commented on HBASE-5339:
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Obviously, you can rearrange the compound key parts by using different
HBASE_ROW_KEY_N, where N is user knowledge.
{code}
-Dimporttsv.columns=HBASE_ROW_KEY_1,HBASE_ROW_KEY_3,cf1:col1,cf2:col3,HBASE_ROW_KEY_2
{code}
> Add support for compound keys to importtsv
> ------------------------------------------
>
> Key: HBASE-5339
> URL: https://issues.apache.org/jira/browse/HBASE-5339
> Project: HBase
> Issue Type: Improvement
> Components: mapreduce
> Reporter: Lars George
> Priority: Trivial
>
> Add support that you can combine some columns from the TSV with either a
> given separator, no separator, or with a custom row key generator class.
> Syntax could be:
> {code}
> -Dimporttsv.columns=HBASE_ROW_KEY_1,HBASE_ROW_KEY_2,cf1:col1,cf2:col3,HBASE_ROW_KEY_3
> -Dimporttsv.rowkey.separator="-"
> {code}
> Another option of course is using the custom mapper class and handle this
> there, but this also seems like a nice to have option, probably often
> covering the 80% this sort of thing is needed.
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