presto-main/src/main/java/io/prestosql/sql/analyzer/AggregationAnalyzer.java/Visitor/visitBindExpression
class Visitor:        @Override
        protected Boolean visitBindExpression(BindExpression node, Void context)
        {
            for (Expression value : node.getValues()) {
                if (!process(value, context)) {
                    return false;
                }
            }
            return process(node.getFunction(), context);
        }