Hi everybody.
Currently it is not possible to clear the PDOStatement params, so it would
be useful to add a method for it.
Why? PDOStatement::execute admits the $input_parameters argument, but
all values are passed as PDO::PARAM_STR and that hit a performance
problem at MariaDB.
The fix it is to be able to call the clearParams first and bindValue
later for each param.
I don't have permissions to create RFC :(