Re: Selects are slow when blob field?
How are the fields indexed? Does EXPLAIN for the query contain "Using index" ?
If you don't have an index on (tablename, recordid, datalength) or (recordid, tablename, datalength) please add, it should allow MySQL to avoid reading the blob field.
Sergey Petrunia, Software Developer
MySQL AB, www.mysql.com
My blog:
http://s.petrunia.net/blog
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Re: Selects are slow when blob field?
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