Set connection pool and overflow limits when using ADO.NET

Configure the connection pool size and overflow when connecting to Cloud SQL for PostgreSQL by using the ADO.NET Connection object.

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For detailed documentation that includes this code sample, see the following:

Code sample

C#

To authenticate to Cloud SQL for PostgreSQL, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

// MaxPoolSize sets maximum number of connections allowed in the pool.
connectionString.MaxPoolSize = 5;
// MinPoolSize sets the minimum number of connections in the pool.
connectionString.MinPoolSize = 0;

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