Hey all -
I have a table with 12,000,000 records spread over about 6 years. I'm trying to delete all
but the last 2 years, but no matter how small of a group I try to delete at a time, it
keeps hanging up the server and I eventually have to restart MySQL. The table looks like
`creation` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
`lat` double NOT NULL default '0',
`lon` double NOT NULL default '0',
`referer` int(12) NOT NULL default '0',
PRIMARY KEY (`referer`,`lat`,`lon`),
KEY `creation` (`creation`,`referer`)
And the query I've been trying looks like this:
delete from tablename where `creation` < '2006-04-01 00:00:00'
...trying to do the oldest 1 month of records at a time. So am I just trying a really
inefficient query? Is there a better way to do this?