presto-parser/src/main/java/io/prestosql/sql/tree/ExpressionRewriter.java/ExpressionRewriter/rewriteExists
class ExpressionRewriter:    public Expression rewriteExists(ExistsPredicate node, C context, ExpressionTreeRewriter<C> treeRewriter)
    {
        return rewriteExpression(node, context, treeRewriter);
    }