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From Roberto Franchini <>
Subject Re: RangeFilter performance problem using MultiReader
Date Sat, 11 Apr 2009 13:21:42 GMT
On Sat, Apr 11, 2009 at 1:50 PM, Michael McCandless
<> wrote:
> Hmm then I'm a bit baffled again.
> Because, each of your "by month" indexes presumably has a unique
> subset of terms for the "date_doc" field?  Meaning, a given "by month"
> index will have all date_doc corresponding to that month, and a
> different "by month" index would presumably have no overlap in the
> terms for the date_doc field.

Yes and no :) In this situation:

>> 200901-->index1, index2
>> 200902-->index3
>> 200903-->index4,index5,index6

each month does not overlap with each other, but index1 and index2
overlap, and so index4 with 5 and 6. So there's overlapping inside a
single month.
So I want to trie, next week, this one:
>> 200901-->index12 (merge of 1 and 2)
>> 200902-->index3
>> 200903-->index456 (merge of 4,5,6)

This way we avoid overlapping inside a single month. Maybe this can
help: stay tuned :)

Roberto Franchini
Tel +39-011-6600814 skype:ro.franchini

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