presto-main/src/main/java/io/prestosql/execution/Output.java/Output/equals
class Output:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        Output output = (Output) o;
        return Objects.equals(catalogName, output.catalogName) &&
                Objects.equals(schema, output.schema) &&
                Objects.equals(table, output.table);
    }