Use long data type for Event Version

[jinhong-]

For the next version of Marten, it would be good to upgrade the version for events to long instead of int. This will give streams with high event counts more room to grow

[oskardudycz]

I think that it's a good idea. @jeremydmiller what do you think?

[jeremydmiller]

Ugh, yes, it's a good idea. Let me see if I can sneak that in right now

[jeremydmiller]

@oskardudycz @jinhong- So yes and no. I'm not gonna try to tackle it right now because we don't have any clean way to generate the table delta to bump the data type from int to long. Since we're in a hurry to get to 3.0, I think this slides to 4.0. But saying that, 4.0 might come reasonably soon.

[oskardudycz]

@jeremydmiller fine for me, I can help on bringing this long version later on