Yes, you can use ibis to do this.  To index column 'ab' with '<binning
none/><encoding equality/>' and column 'cd' with '<binning
nbins=100/><encoding interval/>', use the following options

-b 'ab:<binning none/><encoding equality/>' -b 'cd:<binning
nbins=100/><encoding interval/>'

(note that the above options are to be on one command line!)

There is a bit more information about this at
<lbl.gov/~kwu/fastbit/doc/ibisCommandLine.html#options>

A word of caution: an interval encoded index can be very large!

John


On 5/6/13 5:07 AM, Delu Zhu wrote:
> Dear author,
>  
> I have a question about FastBit : )
> Suppose that a data partition is prepared. I want to build an
> equality-encoded index on one column and build a interval-encoded
> index on another column. Can I use command line tool ibis to achieve
> this and how?
>  
> Thanks,
> Delu
> 
> 
> 
> 
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