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https://issues.apache.org/jira/browse/HBASE-5339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736500#comment-13736500
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Harsh J commented on HBASE-5339:
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While this is easy enough to implement, I think we're over-complicating the
tool. The next demand could be MD5()-ing a part, etc..
We should hand this off to Pig/Hive by adding bulkload support to them. They
already do CSV well enough. For Pig I'd once filed
https://issues.apache.org/jira/browse/PIG-2921. We could file a similar one for
Hive.
> 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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