Document if supported: doltgresql master for rich update(set)s with postgres replica(s) for readonly traffic?

[manosbatsis]

Is a doltgresql master with plain postgres (readonly) replica a supported scenario? Anyone using this or a similar approach in production?

[fulghum]

Hey @manosbatsis, thanks for checking out Doltgres. Currently, we support two replication protocols:

• Standard PostgreSQL replication protocol – this allows Doltgres to be a replica for an existing Postgres db. We do not currently support Doltgres being the source for replication, but we'd be happy to look at this if there's customer interest.
• Dolt's proprietary replication protocol – we're wrapping up testing on Dolt proprietary replication protocol, which lets you replicate between Doltgres servers, including support for a hot standby ready to swap in for high availability systems.