}
SQLExpr param0 = x.getParameters().get(0);
SQLExpr param1 = x.getParameters().get(1);
param0.accept(visitor);
param1.accept(visitor);
Object param0Value = param0.getAttributes().get(EVAL_VALUE);
Object param1Value = param1.getAttributes().get(EVAL_VALUE);
if (param0Value == null || param1Value == null) {
return false;