I have an external connection set up on Google Big Cloud and trying to use Federated Queries to mysql instance. I can successfully run a query against the information schema like this:
SELECT * FROM EXTERNAL_QUERY("xxxxxxx", "SELECT * FROM INFORMATION_SCHEMA.TABLES;")
and return results but when I try to query the table itself I get Invalid table-valued function EXTERNAL_QUERY Failed to get query schema from MySQL server. Error: MysqlErrorCode(1146): Table 'xpotoolsdb.AuthUser' doesn't exist at [2:15]
I'm in the US if it matters.