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Read from MongoDB
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Overview
Important
Inferring the Schema of a Change Stream
When the Spark Connector infers the schema of a DataFrame
read from a change stream, by default,
it will use the schema of the underlying collection rather than that
of the change stream. If you set the change.stream.publish.full.document.only
option to true, the connector uses the schema of the
change stream instead.
For more information on configuring a read operation, see the Change Streams section of the Read Configuration Options guide.