Another option is to use Apache Phoenix and let it do these things for you:
    CREATE TABLE my_table(
        intField INTEGER,
        strField VARCHAR,
        CONSTRAINT pk PRIMARY KEY (intField DESC, strField));

Thanks,
James
@JamesPlusPlus
http://phoenix.incubator.apache.org/
On Thu, Mar 27, 2014 at 1:24 AM, Li Li <[EMAIL PROTECTED]> wrote:
 
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