Invalid schema definition: Could not parse schema when creating PubSub subscription

Question

I would like to create a subscription with a delivery type "Write to BigQuery" and Use Topic schema and Write metadata options. So i created Topic with following protobuf schema:

and a BigQuery table with additional columns for metadata specified in the docs .

When i try to create subscription with both Use Write Metadata and Use Topic schema options enabled, i get the following error:

API returned error: "Invalid schema definition: Could not parse schema."

Using just Write Metadata or just Use Topic schema works fine and i am able to create subscription and receive msgs

Answer 1

This appears to be an internal issue with how some nested records are processed. Please follow https://issuetracker.google.com/issues/267444753 for the investigation and fix.