[jira] [Commented] (HBASE-5339) Add support for compound keys to importtsv

["Gustavo Anatoly (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-5339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13535945#comment-13535945 ] 

Gustavo Anatoly commented on HBASE-5339:
----------------------------------------

Hi, Lars.

I'm interested to contribute, with this improvement so I would like to know, what do you think 
about to create an inner class CompoundTsvParser inside ImportTsv, and inside
CompoundTsvParser create specific parser line class? 

Thanks.
                
> 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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