Dima, Yes, I saw it also. But this is not about syntax only. Spanner use this information to store data efficiently - child entries a located near to their parents. We can think of it as if all related tables were logical caches inside one physical cache, sorted by the key. With this storage format it will be possible to implement very efficient co-located joins.
On Wed, Oct 25, 2017 at 1:26 PM, Dmitriy Setrakyan <dsetrak...@apache.org> wrote: > Igniters, > > Please take a look at how the affinity syntax works in Google Spanner: > https://stackoverflow.com/questions/46903159/can-i-have- > multiple-tables-with-same-parent-in-google-spanner > > I find it rather nice. Perhaps we can borrow from it. > > D. >
