Nevermind, I believe this is the database returning an error on the SQL, and not so much a Tableau thing. Just weird how it worked prior to 7.0.7.
Looking more online:
* PROBLEM DESCRIPTION: *
* If we write multiple statements in the Custom SQL Query tab *
* in a *
* database source node, it fails with the error: *
* 25000[-3576] [Teradata][ODBC Teradata Driver][Teradata *
* Database] *
* Data definition not valid unless solitary.
The scheduled extract uses SQL initalization with the data connection. So I'm going to turn this back to Tableau to see if they have anything to say about any changes to Teradata data connection that would prevent this from working in the maintenance package.