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https://issues.apache.org/jira/browse/AIRFLOW-3948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16785271#comment-16785271
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ASF GitHub Bot commented on AIRFLOW-3948:
-----------------------------------------
ryanyuan commented on pull request #4770: [AIRFLOW-3948] GCSToBQOperator list
as templating field issue
URL: https://github.com/apache/airflow/pull/4770
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> Operator list as templated field issue
> --------------------------------------
>
> Key: AIRFLOW-3948
> URL: https://issues.apache.org/jira/browse/AIRFLOW-3948
> Project: Apache Airflow
> Issue Type: Improvement
> Reporter: Ryan Yuan
> Assignee: Ryan Yuan
> Priority: Major
>
> Fixing issue with operators' list as templated field issue
>
> For example, with GoogleCloudStorageToBigQueryOperator's templated fields,
> `source_objects` and `schema_fields`, if parsed in values are lists, they
> will be recognized as strings, causing error returned by GCS.
> e.g.
> Variable before templating, source_objects = ['file_1.csv', 'file_2.csv']
> Variable after templating, source_objects = "['file_1.csv', 'file_2.csv']"
>
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