Cannot open multiple connections to the same server in Object Explorer

[aasimkhan30]

The reason for this issue is that the postgres extension sends a malformed session create response to ads. This malformed response prevents ads from creating a new session. A similar issue can also be found in the mysql extension. The session create response from the extension is just a Boolean value.

Expected response:

{
   sessionId: 'session id of the session'
}

Actual response from the extension:

false

To repro:

1. Make 2 server groups
2. Create a connection to the server in one server group
3. Create a connection to the same server in second server group
4. Try to connect both of them.
5. The connection that is trying to connect last will fail

[aasimkhan30]

Issue for Mysql: https://github.com/microsoft/azuredatastudio-mysql/issues/200