* Indexing size cost - 1 byte per field per doc
* Search time memory cost - 1 byte per field per doc
* Usage - document score normalization by the doc field
length, and a place to hold doc/field indexing time
boosts, also applied during scoring. (more info in
the Scoring documentation.)
* Only maintained for indexed fields.
* For fields known to be of ~constant length, or fields used just
for filtering or date search, it makes sense to omit norms. Almost
for sure there are more cases that I just don't think of now,
but you get the idea.
zzzzz shalev <zzzzz_shalev@yahoo.com> wrote on 27/02/2007 02:29:41:
can someone explain to me the norm issue that is stored in each
field at index time for scoring, how in impacts the index size, for
lucene 1.4.3 is it active by default. and the penalty of disabling it
much much thanks in advance
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