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 <[EMAIL PROTECTED]> 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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