Hello,

According to the documentation of google.cloud.bigquery.job.QueryJob.exception, this method should returns an exception (and not raises) if something went wrong. But according to my tests this is not always the case:

from google.cloud import bigquery

client = bigquery.Client()

# Correct behavior: returns an exception and does not raise.
query = 'WRONG QUERY'
job = client.query(query)
exc = job.exception()

# Wrong behavior: raises an exception instead of returning it.
query = 'ASSERT (SELECT 2 > 3) AS "Error !!!"'
job = client.query(query)
try:
    job.exception()
except:
    print('raised!')

Am I misunderstanding the documentation or is this the correct behavior?

I'm using google-cloud-bigquery==2.6.1 with Python 3.8.6. Let me know if you need more informations.

Thanks for your help,