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https://issues.apache.org/jira/browse/PIG-1782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12987991#action_12987991
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Dmitriy V. Ryaboy commented on PIG-1782:
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Bill, I think what you are suggesting is the "correct" way but I'd prefer not
to break people's existing scripts which is what would happen if we changed
what we return when a schema like 'cf2:foo cf2:bar' is specified in your
proposal...
There are also usability benefits to having the flat return schema you get from
HBaseStorage now -- it looks exactly like loading from PigStorage, so no
surprises. You ask for 2 columns, and get 2 values in a tuple, it's sort of
what you'd expect.
Perhaps we take your suggestion, put that into builtins.AdvancedHBaseStorage,
deprecate the current HBaseStorage, and move the current code to
builtins.SimpleHBaseStorage ?
> Add ability to load data by column family in HBaseStorage
> ---------------------------------------------------------
>
> Key: PIG-1782
> URL: https://issues.apache.org/jira/browse/PIG-1782
> Project: Pig
> Issue Type: New Feature
> Environment: Java 6, Mac OS X 10.6
> Reporter: Eric Yang
> Assignee: Bill Graham
>
> It would be nice to load all columns in the column family by using short hand
> syntax like:
> {noformat}
> CpuMetrics = load 'hbase://SystemMetrics' USING
> org.apache.pig.backend.hadoop.hbase.HBaseStorage('cpu:','-loadKey');
> {noformat}
> Assuming there are columns cpu: sys.0, cpu:sys.1, cpu:user.0, cpu:user.1, in
> cpu column family.
> CpuMetrics would contain something like:
> {noformat}
> (rowKey, cpu:sys.0, cpu:sys.1, cpu:user.0, cpu:user.1)
> {noformat}
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