presto-main/src/main/java/io/prestosql/type/SqlIntervalYearMonth.java/SqlIntervalYearMonth/equals
class SqlIntervalYearMonth:    @Override
    public boolean equals(Object obj)
    {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        SqlIntervalYearMonth other = (SqlIntervalYearMonth) obj;
        return Objects.equals(this.months, other.months);
    }