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Answer: Directory listing mode with cloudFiles.includeExistingFiles = true
Setting cloudFiles.includeExistingFiles = true processes existing files before continuing with incremental ingestion.
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You have 5 years of historical data in GCS and want to process it once before switching to real-time ingestion. Which Auto Loader feature allows you to do this efficiently?
A
File notification mode only
B
Directory listing mode with cloudFiles.includeExistingFiles = true
C
Checkpointing with watermarking
D
Schema inference mode
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