As explained [here](https://github.com/graphprotocol/graph-node/issues/6040), Graph Node doesn't currently support the `or` operator with column filters. This appears to be an unhandled scenario in the `graph-node` implementation — because this generic error is thrown: > ClientError: Filter must by an object It would be super helpful (to lower the debugging time for users) if the error was more specific/ more informative.