SixK writes:
> - MySql make all joins between tables before extracting the required
> rows
How do you mean? It can only start returning rows when all
tables that are needed have been joined, but of course it
doesn't create a temporary table with the product of all
tables before it starts to ret
Hello,
sorry, this is the second post, caue I had no reaction.
Just wanted to talk about the MySql Query Optimiser.
After having performance problems with some queries, I arrived to
thoses conclusions:
- The order of joins with constants and column have no effect on the
speed of the query
- MyS