I see one column "usetokens" available in the survey table on v3.7.3, and with default value "N".
What is this field for? I assume that it is an indicator that is the survey using token or not. However, I tried to create survey participant table (tokens_xxx table), but this field was not updated.
Seems now I can only go through all the tokens_xxx tables.
I want to treat opt-in surveys, say I have one incoming email, try to check is this email already addressed any surveys (in any token tables). In my case, add participants and send invitations are two apart processes.
Actually, I've added code to update the usetokens field at token table creation, restore or delete the participant table.
Just want to make sure if this field is used or designed as my understanding.
