Internal error on NEST when not flattening results

Question

I\'m trying to GROUP and return a repeated field into a new table

SELECT url, NEST(label) AS labels
FROM [mytable]
GROUP EACH BY url

It wor

Answer 1

From "Query Reference" on NEST() :

BigQuery automatically flattens query results, so if you use the NEST function on the top level query, the results won't contain repeated fields. Use the NEST function when using a subselect that produces intermediate results for immediate use by the same query.

So if you want a non-flattened result here, you'd need to do a select * from your other select I'd think