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From "Ning Li" <ning.li...@gmail.com>
Subject Re: Blog post about when to use HBase
Date Fri, 14 Mar 2008 20:05:14 GMT
Hi Brian,

HBase doesn't support indexes on non-primary-key values or
secondary/text indexes today. But should HBase support any of them in
the future?

Without indexes on non-primary-key values, the query execution is
scan-based. Map/Reduce will help, but the queries won't be real-time.

As to secondary/text indexes, does HBase need a coupled secondary
index? Or is a de-coupled, relatively independent secondary index

What are people's takes on this?


On 3/11/08, Brad Collins <brad@chenla.la> wrote:
> Bryan Duxbury <bryan@rapleaf.com> writes:
> > I've written up a blog post discussing when I think it's
> > appropriate to use HBase in response to some of the
> > questions people usually ask.  You can find it at
> > http://blog.rapleaf.com/dev/?p=26.
> Very good article -- I look forward to your article about
> using Lucene and secondary indexes.
> b/
> --
> Brad Collins <brad@chenla.la>, Bankwao, Thailand

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