> 2023年9月15日 20:31，jacktby jacktby <jacktby(at)gmail(dot)com> 写道：
>
> I’m trying to implement a new column store for pg, is there a good example to reference?
That’s too complex, I just need to know the interface about design a column store. In fact, I just need a simple example, and I will implement it by myself, what I’m confusing is that, I don’t know how to implement a MVCC, because old version is tuple, this will make a big difference to the transaction?