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@jeremy98 wrote:

But, if my postgres wasn't created with a private endpoint. Do I need to recreate the postgres database? Because I did with my colleague this thing with Terraform. And I got a problem about this...

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Not necessarily, but this will depend on how your company's networking and access permissions are set up.  In my case, we are migrating from a PostgreSQL server which has an IP access list.  Before we decommission the application and database, we'll do a final archive of the data.  We have a couple options for accessing the data--remove the IP access list knowing we are going to tear down the server shortly, or add a NAT gateway with a fixed IP, and add that IP to the PostgreSQL server's allowlist, and then extracting the data.

There are other ways also, but they would be particular to your company's infrastructure.  This is the point where an internet rando says "it depends" and talking to your DevOps or networking team can figure out the exact steps.  If they have a specific recommendation maybe the forums can help with that.

As an aside, you'll need to set up a NAT Gateway before the end of September anyway, see https://learn.microsoft.com/en-us/azure/databricks/security/network/classic/secure-cluster-connectiv....  It might be to your benefit to start there.