Hi, I had been busy with my exams (which got finished today). I'll come up with more detailed working plan and doubts in a couple of days.
On Tue, Apr 29, 2014 at 11:28 PM, Sergei Golubchik <[email protected]> wrote: > Hi, Anshu! > > So, how do we start? > Till now, I have not done much. I had started exploring the code for optimizer but stopped mid-way and started to read the book "Inside the SQL Server Query Optimizer" for a better understanding of how the optimizer works. I see you're often present on irc, which is great. > (I go by nick igniting) > You've looked at the code, what do you think? > > Do you understand how different parts of this feature fit together? > > We can start from just one constant (global or per-engine) and see how > it'll work. > I had started exploring tmptable_create_cost. In sql/sql_const.h: HEAP_TEMPTABLE_CREATE_COST is defined to be 2.0 and DISK_TEMPTABLE_CREATE_COST as 40.0. As discussed on irc with serg, I'll start to profile this constant (which I have not started yet). > And, by the way, when you start coding (May 19) or earlier, as you > prefer, I would like to start seeing some kind of weekly updates from > you. In email or in your blog - whatever you feel more comfortable with. > Blog updates should be fine. Regards, > Sergei > Regards Anshu
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