presto-google-sheets/src/main/java/io/prestosql/plugin/google/sheets/SheetsRecordCursor.java/SheetsRecordCursor/getDouble
class SheetsRecordCursor:    @Override
    public double getDouble(int field)
    {
        checkFieldType(field, DOUBLE);
        return Double.parseDouble(getFieldValue(field));
    }