the problem is that our code is being a little too protective of reserved words, it is a bug that has been logged.
the code to create the sql automatically places the "`" character around the table name.
There is also a reserved words list that is checked, if the table name you are using is on this list, then the $WA_table variable gets set with the "`" character as well.
This results in the SQL being created as:
SELECT ``user`` ....
so it's doubling up the "`" character causing the error.