Re: Prefix and general wildcards

2006-06-10 Thread Chuck Williams
Doug Cutting wrote on 06/09/2006 08:00 AM: > Chuck Williams wrote: >> one simple and substantial optimization is >> to support a token filter for term vectors, i.e. pass tokens through an >> additional filter for addition to term vectors. > > Why not instead add the rotated and/or reversed tokens t

Re: Prefix and general wildcards

2006-06-09 Thread Chuck Williams
Doug Cutting wrote on 06/09/2006 11:00 AM: > Why not instead add the rotated and/or reversed tokens to a different > field that does not store vectors? That would be a better idea. Thanks! Chuck - To unsubscribe, e-mail: [EMA

Re: Prefix and general wildcards

2006-06-09 Thread Doug Cutting
Chuck Williams wrote: If not, it occurs to me that one simple and substantial optimization is to support a token filter for term vectors, i.e. pass tokens through an additional filter for addition to term vectors. Unless there is a better solution, I'll post such a patch. Why not instead add t

Prefix and general wildcards

2006-06-09 Thread Chuck Williams
Hi all, I need to support query expressions like *xyz and possibly *lmn*. The former can be done with high search efficiency by storing (delimited) reversed tokens and the latter by storing all (delimited) rotations for each token. However, both of these techniques have high index overhead, the