Christofer Dutz wrote:
Hi,
I just ran into a very strange problem. I have two simple tables with
BIGINT(16) PKs. The primary table has 7500 records and the secondars has
15000. If I execute:
SELECT * FROM lad JOIN snd ON lad.id = snd.lad_id
The query takes 8 seconds. If I execute this one:
SELECT * FROM lad LEFT JOIN snd ON lad.id = snd.lad_id
I quit the query after 5 minutes.
Why is this so?
Chritofer Dutz
Christofer,
You'll need to provide the list with more information for anyone to be
able to help you. What version of MySQL are you running? Can you paste
the output of "show create table snd; show create table lad;" Also, do
you have other processes using the server that could have locked one of
the tables? When the query is taking a long time, try opening a second
connection to the server and running "show full processlist;" to see
what else is going on.
Regards,
Devananda vdv
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