final Stack<Pair<String, String>> params = new Stack<Pair<String, String>>();
stmnt.accept(new StatementVisitorAdapter() {
@Override
public void visit(Select select) {
select.getSelectBody().accept(new SelectVisitorAdapter() {
@Override
public void visit(PlainSelect plainSelect) {
plainSelect.getWhere().accept(new ExpressionVisitorAdapter() {
@Override
protected void visitBinaryExpression(BinaryExpression expr) {