> Ok, so we have at least two JDBC drivers
> - MySQL and PostgreSQL.

That's what I have tested my Java application with, so far.

> > What do you mean by "explicit method"?
>
> Basically idea is: if this behavior is not
> standardized, we define a standard extension
> that does not conflict with anything used before.
> If I'm not mistaken, this was used consequently
> for all other JDBC extensions.

So you basically mean that it is better, from the standardization
point of view, to use the driver's vendor-specific extenstions to get
a String representation for an SQL statement, instead of providing an
implementation for that with the toString() method?