Market for Salesforce-Postgres bi-directional synchronization?

Is there a use case for a Salesforce-Postgres realtime bi-directional synchronization tool? Is this something companies using Salesforce would spend money on?

Tools such as Heroku Connect[1] or Skyvia[2] provide this functionality but are they being utilized?

I was involved in a project that rebuilt Heroku Connect as a standalone tool. Part of our reasoning for doing this:

- Centralizing the update logic for external services into Salesforce, - Having a better (i.e. SQL) method of querying Salesforce data, - Saving costs on additional Salesforce seats as employees used external tooling instead, and - Heroku Connect was found to be prohibitively extensive for our requirements.

This was a Ruby/Rails shop so all updates went via ActiveRecord into Postgres and then, via our tool, into Salesforce. Changes in Salesforce triggered our tool to retrieved those changes and make the corresponding updates in Postgres.

Financially the company has offset the cost of maintenance against the savings made by not having extra Salesforce seats and not paying for Heroku Connect.

Salesforce, of course, does not encourage this type of workflow (perhaps also the reason why Heroku Connect is so expensive - Heroku being owned by Salesforce) however it remains possible.

[1] https://www.heroku.com/connect [2] https://skyvia.com/data-integration/integrate-salesforce-postgresql