satybald commented on a change in pull request #15185:
URL: https://github.com/apache/beam/pull/15185#discussion_r683709279
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File path: sdks/python/apache_beam/io/gcp/bigquery.py
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@@ -2116,19 +2116,20 @@ class ReadFromBigQuery(PTransform):
on GCS, and then reads from each produced file. File format is Avro by
default.
+ .. warning::
+ DATETIME columns are not supported. They are currently parsed as strings
Review comment:
could you please clarify why Datetime is not supported? `EXPORT` method
is also using `fastavro` and supports `DATETIME` types
> When using Avro exports, these fields will be exported as native Python
types (datetime.date, datetime.datetime, datetime.datetime,
and datetime.datetime respectively). Avro exports are recommended.
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