RE: Full text search
This WebDNA talk-list message is from 1999
It keeps the original formatting.
numero = 22401
interpreted = N
texte = How about setting the max found items pref to a low number.> -----Original Message-----> From: Peter Ostry [mailto:po@ostry.com]> Sent: Thursday, January 07, 1999 11:40 AM> To: WebDNA-Talk@smithmicro.com> Subject: Re: Full text search>>> At 17:35 Uhr -0800 06.01.1999, PCS Technical Support wrote:>> >>So a complete search will look into 6000 fields for a match of> 3 fields per> >>line and at the same time in 4000 fields for the occurence of 3> characters.> >>> >>Will this be slow?> >> >That's probably not too bad. There are sites searching thru 200,000> >records in full-text descriptions along with other required fields.>>> Oops, I made a mistake in my calculation, the correct numbers are this:> One search session looks into 3x2000 fields (which are required) and into> 12x2,000 to find 3 letters.> That makes 30,000 fields. I will have one life database and three years> in the archive, so the biggest search will run through max.> 120.000 records> - I am a little scared about the heavy wildcard search with wo in 12 (!)> fields...> Do you still say this could be ok?>> I am just wondering, what has more effect on speed with wo???data:> Number of records? Number of fields? Can I multiply records x> fields to get> a rule of thumb for a specific machine?> My search requires grouping - does grouping speed up or slow down?>> I tried to push WebCat beyond the limit, with 500.000 records and 10> fields. Like all databases it is still usable, when it finds one or few> records. But it gets exhausted (no wonder) when it finds many records.> Maybe I should set up a learning dirty words-system to store> all requests> which return more then 500 records or so and forbid them in the future.> This technique makes sense with 4D - but makes it sense for WebCat too?>>> Peter>> ++++++++++++++++++++++++++++++++++++++++++++++++> Peter Ostry - Vienna/Austria - www.ostry.com> Fon ++43-1-877 74 54 Fax ++43-1-877 74 54-21> ++++++++++++++++++++++++++++++++++++++++++++++++>
Associated Messages, from the most recent to the oldest:
How about setting the max found items pref to a low number.> -----Original Message-----> From: Peter Ostry [mailto:po@ostry.com]> Sent: Thursday, January 07, 1999 11:40 AM> To: WebDNA-Talk@smithmicro.com> Subject: Re: Full text search>>> At 17:35 Uhr -0800 06.01.1999, PCS Technical Support wrote:>> >>So a complete search will look into 6000 fields for a match of> 3 fields per> >>line and at the same time in 4000 fields for the occurence of 3> characters.> >>> >>Will this be slow?> >> >That's probably not too bad. There are sites searching thru 200,000> >records in full-text descriptions along with other required fields.>>> Oops, I made a mistake in my calculation, the correct numbers are this:> One search session looks into 3x2000 fields (which are required) and into> 12x2,000 to find 3 letters.> That makes 30,000 fields. I will have one life database and three years> in the archive, so the biggest search will run through max.> 120.000 records> - I am a little scared about the heavy wildcard search with wo in 12 (!)> fields...> Do you still say this could be ok?>> I am just wondering, what has more effect on speed with wo???data:> Number of records? Number of fields? Can I multiply records x> fields to get> a rule of thumb for a specific machine?> My search requires grouping - does grouping speed up or slow down?>> I tried to push WebCat beyond the limit, with 500.000 records and 10> fields. Like all databases it is still usable, when it finds one or few> records. But it gets exhausted (no wonder) when it finds many records.> Maybe I should set up a learning dirty words-system to store> all requests> which return more then 500 records or so and forbid them in the future.> This technique makes sense with 4D - but makes it sense for WebCat too?>>> Peter>> ++++++++++++++++++++++++++++++++++++++++++++++++> Peter Ostry - Vienna/Austria - www.ostry.com> Fon ++43-1-877 74 54 Fax ++43-1-877 74 54-21> ++++++++++++++++++++++++++++++++++++++++++++++++>
Olin Lagon
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