Log Insights: Connection Events

• C20: Connection received
• C21: Connection authorized
• C22: Authentication failed
• C23: Disconnection
• C24: Client failed to connect
• C25: Connection to client lost
• C26: Connection with open transaction lost
• C27: Terminating connection
• C28: Too many connections
• C29: Too many connections for role
• C30: Could not accept SSL connection
• C31: Unsupported frontend protocol
• C32: Incomplete message from client
• C33: Too many connections for database

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