}
public static List<ColumnReference> getColumnRefFromVEs(List<ValueExpression> veList) {
final List<ColumnReference> crList = new ArrayList<ColumnReference>();
for (final ValueExpression ve : veList) {
final ColumnRefCollectVisitor colVisitor = new ColumnRefCollectVisitor();
ve.accept(colVisitor);
crList.addAll(colVisitor.getColumnRefs());
}
return crList;
}