source property
Column
source
Attempts to resolve the source of this column, if this is an AvailableColumn or a CommonTableExpressionColumn that refers to another column.
Implementation
Column get source {
var current = this;
while (current is DelegatedColumn) {
final inner = current.innerColumn;
if (inner != null) {
current = inner;
} else {
return current;
}
}
return current;
}