Hi, Eduardo! grep for create_group_by in sql/ and particularly in storage/
On Aug 04, Berrocal, Eduardo wrote: > Hello!, > Continuing in my series of emails about engine condition pushdown... I > wonder if it is possible to push down aggregation functions such as > SUM(), MIN(), MAX() or AVG() to the storage engine. Currently, and as > far as I can see (I may be wrong here), it is not possible. However, > this is something that can be beneficial if the storage engine can > perform some of these basic computations itself, like suming over a > whole column and returning just the result. The storage engine can > even be smart enough to use some hardware advantages like accelerators > or computational storage. > > If you guys think this is indeed possible without drastic code > changes, it would be amazing to be pointed at where this is. At first, > I would only push down functions if they operate over just one column > of the same table. Things can be made more complicated in the future, > of course. Regards, Sergei VP of MariaDB Server Engineering and secur...@mariadb.org _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
