presto-parser/src/main/java/io/prestosql/sql/SqlFormatter.java/SqlFormatter/visitRenameSchema
class SqlFormatter:        @Override
        protected Void visitRenameSchema(RenameSchema node, Integer context)
        {
            builder.append("ALTER SCHEMA ")
                    .append(formatName(node.getSource()))
                    .append(" RENAME TO ")
                    .append(formatExpression(node.getTarget()));

            return null;
        }