[gtrubetskoy]

>> the PostGIS extension is GPL

But then it doesn't really belong or aim to be in PostgreSQL proper, at least IMO, so I think that's fine.

The functionality (i.e. distributed processing and horizontal scaling) that Citus has done is something that I predict will eventually be part of standard PostgreSQL, but it will not be Citus's code (unless they change the license, of course).

[rch]

Alternative implementations will probably surface, but those will almost certainly be packaged as extensions as well.

I think the model could work in this case, both for the business and for PostgreSQL in general.