presto-google-sheets/src/main/java/io/prestosql/plugin/google/sheets/SheetsRecordCursor.java/SheetsRecordCursor/getLong
class SheetsRecordCursor:    @Override
    public long getLong(int field)
    {
        checkFieldType(field, BIGINT);
        return Long.parseLong(getFieldValue(field));
    }