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From Ramprakash Ramamoorthy <youngestachie...@gmail.com>
Subject Re: Grouping without block indexing
Date Thu, 21 Feb 2013 11:52:01 GMT
On Wed, Feb 20, 2013 at 11:11 PM, Michael McCandless <
lucene@mikemccandless.com> wrote:

> Just use the 2-pass grouping if you can't index your groups as a block of
> docs.
>
> See
> http://lucene.apache.org/core/4_1_0/grouping/org/apache/lucene/search/grouping/package-summary.html
> for examples...
>

Thanks Mike. Just wondering if a multi level grouping is possible. My
understanding as on date would be , run the first pass collector for every
field and then do a second pass for each result combo? Can you throw some
light on this please?

>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
> On Wed, Feb 20, 2013 at 2:23 AM, Ramprakash Ramamoorthy
> <youngestachiever@gmail.com> wrote:
> > Dear all,
> >
> >          I read from this page
> > http://lucene.apache.org/core/4_1_0/grouping/index.html that, grouping
> is
> > possible only when I do a block index and place a binary marker at the
> end
> > of each block.
> >
> >          This totally isn't usable in our use case because we have random
> > data coming in. So is there a way I can achieve grouping without block
> > indexing based on the group field? Thanks in advance.
> >
> > --
> > With Thanks and Regards,
> > Ramprakash Ramamoorthy,
> > India
> > +91 9626975420
>
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>


-- 
With Thanks and Regards,
Ramprakash Ramamoorthy,
India.
+91 9626975420

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