Bigquery Filtering by relationship not working

### Component

For the graphql engine using the bigquery connector for DDN.

### What is the current behaviour?

I setup a very simple test schema in bigquery and the setup the relationships in config:

Running a simple query off of this gives me an error:

### What is the expected behaviour?

It should be able to query and filter just fine as I am able to query the top level users just fine with filtering.

### Keywords

bigquery, graphql

No files, tests, or code entry points are named. Start by reproducing the reported relationship filter failure in the BigQuery connector using the schema, relationship configuration, and query shown in the issue; done means the equivalent relationship query filters successfully without the reported error.

Written by the indexing model from the issue text.