Empty string in a varchar column returns Null

[timob]

create table gotest (x varchar(255));
insert into gotest values ('');

Selecting from this in GoMySQL gets you a nil value instead of an empty string.

[timob]

Here is my fix:

https://github.com/timob/GoMySQL/commit/a749deb635a7ae452dd6cbee766b0dae64189d51