Re: Distinct select over 2 fields?

2006-09-13 Thread Stuart Brooks
Why don't you just use a GROUP BY on lat,long? > You could try using CONCAT: > > select distinct(CONCAT(lat, long)) from table where ... > > Steve Musumeche > CIO, Internet Retail Connection > [EMAIL PROTECTED] > > > > Brian Dunning wrote: > > Lat & lon are two different fields. Either can be dupl

mysqld running at 100% after being accessed in startup script

2006-07-18 Thread Stuart Brooks
Hi, I have a strange problem. I am running mysqld (5.0.20) on NetBSD 3.0 and after the startup scripts are complete the mysqld process ramps up to 100% utilization. However this only happens if I make mysql calls from within the startup scripts. If I wait until the startup scripts have completed

Re: Index merge optimization (with OR) and table joins

2006-05-23 Thread Stuart Brooks
you have to find the pointer to > the row using the index, then go to the row. Doing a table scan > eliminates needing that extra step of the index. > > Next time full SHOW CREATE TABLE statements would be useful. > > -Sheeri > > On 4/11/06, Stuart Brooks <[EMAIL

Index merge optimization (with OR) and table joins

2006-04-11 Thread Stuart Brooks
Hi, I have been having a hassle getting the index_merge to work as expected when I am joining 2 tables on MySQL 5.0.19. The following example should make it clear: Table A key1 (primary key) key2 some_data Table B key1 (indexed) key2 (indexed) more_data SELECT a.key1,a.key2,b.more_d