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From Michael McCandless <luc...@mikemccandless.com>
Subject Re: # of fields, performance
Date Wed, 03 Dec 2008 09:59:48 GMT

Also, if you do some testing of this, please post back the results if  
you can.

As you've noticed, this (how Lucene performs with a great many /  
variable fields per doc) isn't a well explored area yet...

Mike

Mark Miller wrote:

> There is not much impact as long as you turn off Norms for the  
> majority of them.
>
> - Mark
>
>
> On Dec 2, 2008, at 8:47 AM, Darren Govoni <darren@ontrenet.com> wrote:
>
>> Hi,
>> I saw this question asked before without a clear answer. Pardons if I
>> missed it in the archive elsewhere.
>>
>> Is there a serious degradation of performance when using high  
>> number of
>> fields per document? Like 100's? Is the impact more on the write than
>> the read?
>>
>> What are the performance characteristics with a high number of fields
>> and is anyone using indexes this way?
>>
>> thank you for any thoughts.
>>
>> Darren
>>
>>
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