My question is regarding a client ID issue. As on 

https://developers.google.com/analytics/devguides/collection/amp-analytics/client-id 

mentioned, in different scenarios, the client ID is stored in different cookies. In the article "Tealium for AMP" the script defines the visitor_id:

"vars": {
        "account": "##TEALIUM_ACCOUNT##",
        "profile": "##TEALIUM_PROFILE##",
        "datasource": "##TEALIUM_DATASOURCE##", // optional
        "visitor_id": "CLIENT_ID(AMP_ECID_GOOGLE)"

How is it possible with Tealium to identify an user through AMP and NO-AMP sites? Because of the different cookies, the same user has different ID's, it should be possible to merge them. 

Regards Patrick