Fast relevance sorting of full text search results

2008-01-01 Thread Urms
I'm using pretty standard approach to sorting search results by relevancy: SELECT DISTINCT product_name, MATCH (keywords) AGAINST ('CONSOLIDATED* 16* bearing*' IN BOOLEAN MODE) AS rate FROM _TT WHERE MATCH ( keywords ) AGAINST ('CONSOLIDATED* 16* bearing*' IN BOOLEAN MODE ) >0 ORDER BY rate DES

Re: Applying LIMIT to SELECT count(*)

2007-12-21 Thread Urms
The problem is that there are certain conditions after WHERE different for each query and the results number can be very different. -- View this message in context: http://www.nabble.com/Applying-LIMIT-to-SELECT-count%28*%29-tp14453544p14459808.html Sent from the MySQL - General mailing list arc

Applying LIMIT to SELECT count(*)

2007-12-21 Thread Urms
Hi, My task is to limit calculation of total number of items in the database that satisfy certain conditions. I join two tables using WHERE and there are millions of records as the result. When I do SELECT count(*) it takes really too long. The table has appropriate indexes and I experimente