vijaykramesh commented on a change in pull request #3880: [AIRFLOW-461]  
Support autodetected schemas in BigQuery run_load
URL: https://github.com/apache/airflow/pull/3880#discussion_r298389815
 
 

 ##########
 File path: airflow/contrib/hooks/bigquery_hook.py
 ##########
 @@ -851,8 +851,9 @@ def run_copy(self,
 
     def run_load(self,
                  destination_project_dataset_table,
 
 Review comment:
   this indeed did break backwards compatibility.  previously (on 1.9) I could 
run `GoogleCloudStorageToBigQueryOperator` with no autodetect or schema fields, 
with `source_format='NEWLINE_DELIMITED_JSON'` and it worked fine (presumably 
doing autodetect?)
   
   now upgrading to 1.10 it breaks since I haven't explicitly specified 
autodetect. 

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