Jay Pipes wrote:
Roy Lyseng wrote:
Brian,
do you have a breakdown of the cost of the various modules in a
bread-and-butter query? I am most interested in SELECT queries with
small result sets...
By "modules" do you mean runtime vs optimizer vs. protocol (send) or do
you mean JOIN::prepare vs. JOIN::optimize vs JOIN::execute?
As far as you can go :) Breaking up into preparation, execution, storage
engine and protocols would be a good start, but the more information,
the better... Preparation could again be broken up into lexer, parsing,
translation (JOIN::prepare) and optimization.
Thanks,
Roy
Cheers!
Jay
Thanks,
Roy
Brian Aker wrote:
Hi!
On May 14, 2009, at 10:05 AM, Kay Röpke wrote:
Next I'll try to get it working for drizzle
Awesome :)
I was just going through the call stack last night for the Lexer and
was amazed at how inefficient the thing is. That thing is chewing up
a ton of CPU...
Cheers,
-Brian
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