I’m using the Npgsql driver in a .NET application to connect to a CockroachDB instance. I set Minimum Pool Size=100 in the connection string, expecting the pool to pre-open 100 connections at application startup.

However, connections are only opened when database operations occur. Is there a way to force the pool to open and maintain the minimum number of connections immediately, regardless of DB activity?

Environment:

• .NET version: .Net Framework 4.8.1
• Npgsql version: 8.6
• CockroachDB version: 24.3.0