Updated links in readme for extensions
Log statement in incorrect place
Corrected method name

Technically breaking since it's a change to a public interface, it is
however a new interface in 5.0 and extremely unlikely that it's been
used by anyone outside of the core assembly anyway
Aligned with DbDriver implementation

No need to renumber first query as it will start at @p0 anyway and no
need to do the check as it's not renumbered either if it's an EXEC