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From "Jonathan Ellis (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-3280) Pig Storage Handler: Add >=0.8.1 types, Guess right type for Key in Schema
Date Thu, 29 Sep 2011 22:41:45 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3280?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-3280:
--------------------------------------

          Component/s:     (was: Contrib)
                       Hadoop
    Affects Version/s:     (was: 0.8.6)
                       0.8.1
        Fix Version/s: 0.8.7
    
> Pig Storage Handler: Add >=0.8.1 types, Guess right type for Key in Schema
> --------------------------------------------------------------------------
>
>                 Key: CASSANDRA-3280
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3280
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Hadoop
>    Affects Versions: 0.8.1
>            Reporter: Steeve Morin
>              Labels: patch
>             Fix For: 0.8.7
>
>         Attachments: new_types_and_key_type.txt
>
>
> Various patches in the Pig Storage Handler:
> - correctly guess the right Pig type for the Row Key
> - add support for FloatType, DoubleType, UUIDType (as String) and DateType (as time epoch)
> - add support to specify correct type comparator in SlicePredicate
> *SlicePredicate comparator:*
> For instance:
> {quote}
> {{raw =  LOAD 'cassandra://ks/cf?slice_start=2.5&slice_end=5.3&comparator=DoubleType'
USING CassandraStorage() AS ();}}
> {quote}
> It's an optional parameter. If it's not present, it will default to BytesType. Which
mean you must use hex strings.
> Hence {{slice_start=00&slice_end=FF}} isn't the same as {{slice_start=00&slice_end=FF&comparator=AsciiType}}
!

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