Re: Fulltext performance problem.

2004-08-24 Thread SGreen
How fast is this query? SELECT id FROM msg_body WHERE MATCH(body) AGAINST( 'WORD') If it's fast , you may have to re-state your query so that you are not FT searching and joining tables in the same statement. The optimizer can only use 1 index at a time from any table. We may be running into a

Re: Fulltext performance problem.

2004-08-23 Thread Thomas Spahni
Hi Fredrik, a LEFT JOIN could be faster (I'm not sure, try it). And you don't have a fulltext index on msg_header.list. What about this? SELECTmsg_header.bodyid, msg_header.id, msg_header.subject, msg_header.mfrom, msg_header.date, msg_header.list FROM msg_header LEFT JOIN msg

Fulltext performance problem.

2004-08-20 Thread Fredrik Carlsson
Hi all, I'm running a small mail archive and have a little problem with the fulltext search performance. I really appreciate any tips/design suggestions (even if it dont have to do with the search problem ;) ). Database schema: mysql> describe msg_header; +-+--+--+-+-

Fulltext performance and RAM upgrade

2004-02-11 Thread Mark Maunder
I am considering an upgrade on our server from 512 megs of RAM to 1 or possibly 1.5 gigs, and would like to know if I'm going to get a significant performance boost. Any suggestions or information is much appreciated. Our configuration is as follows: The table has around 100,000 records (but will

Re: Fulltext performance

2001-11-21 Thread Sergei Golubchik
Hi! On Nov 21, Mike Hunt wrote: > > All we want is for something like > > SELECT * FROM book WHERE MATCH(author) AGAINST > ('stephen') AND MATCH(author) AGAINST ('king') LIMIT > 100 /* these queries are ALWAYS limited like this */, > a pretty normal kind of query, to return in an > acceptable

Fulltext performance

2001-11-21 Thread Mike Hunt
We are having very serious performance issues (the client is angry, very angry) with full-text searches that return a large number of results. The problem is roughly as follows: we have a 2-million record database of books, a bit of a mess, each record is a mass of unstructured data. A search t

RE: FULLTEXT performance causing an avalanche of problems

2001-01-10 Thread Steven Roussey
> Possible fixes: o Maybe (I know we've talked about this before), another solution is to have the FT index in another file which could have its own cache size settings. o Lastly, we could switch to using word tables that would use already optimized caching of table and index data, but would req