Cloudflare D1
And, since we're building on the redundant storage of Durable Objects, your database can physically move locations as needed, resulting in self-healing from even the most catastrophic problems in seconds. Read replication
With D1, we want to make it easy to store your whole application's state in the one place, so you can perform arbitrary queries across the full data set. That’s what makes relational databases so powerful.
However, we don’t think powerful should be synonymous with cumbersome. Most relational databases are huge, monolithic things and configuring replication isn't trivial, so in general, most systems are designed so that all reads and writes flow back to a single instance. D1 takes a different approach.
With D1, we want to take configuration off your hands, and take advantage of Cloudflare's global network. D1 will create read-only clones of your data, close to where your users are, and constantly keep them up-to-date with changes.
read replicaを作る予定らしい。そりゃCloudflareとしてもエッジに分散させたいよね。
writeからreadの反映がどのくらいかかるんだろ
open betaきた
allowing you to connect to your existing databases and make them feel global. We think this gives teams flexibility: combine D1 and Workers for globally distributed apps, and use Hyperdrive for querying the databases you have in legacy clouds and just can’t get rid of overnight
timetravel
既にdocumentにもあったが、row based pricing