presto-google-sheets/src/main/java/io/prestosql/plugin/google/sheets/SheetsRecordCursor.java/SheetsRecordCursor/getType
class SheetsRecordCursor:    @Override
    public Type getType(int field)
    {
        checkArgument(field < columnHandles.size(), "Invalid field index");
        return columnHandles.get(field).getColumnType();
    }