presto-parser/src/main/java/io/prestosql/sql/tree/CreateSchema.java/CreateSchema/equals
class CreateSchema:    @Override
    public boolean equals(Object obj)
    {
        if (this == obj) {
            return true;
        }
        if ((obj == null) || (getClass() != obj.getClass())) {
            return false;
        }
        CreateSchema o = (CreateSchema) obj;
        return Objects.equals(schemaName, o.schemaName) &&
                Objects.equals(notExists, o.notExists) &&
                Objects.equals(properties, o.properties);
    }