select method
Implementation
DbQueryBuilder<T> select(List<String> columns) {
for (final c in columns) {
if (!_selected.contains(c)) _selected.add(c);
}
return this;
}
DbQueryBuilder<T> select(List<String> columns) {
for (final c in columns) {
if (!_selected.contains(c)) _selected.add(c);
}
return this;
}