🔀 Write Disposition in Ferry

Write Disposition determines how Ferry handles data when writing to a destination. It defines whether new data should be replaced, appended, or merged with existing data.

Ferry supports multiple write strategies to accommodate different data ingestion use cases.

📌 Supported Write Dispositions

Disposition	Behavior
replace	Drops existing data in the destination and writes the new dataset.
append	Adds new records without modifying existing data.
merge	Merges incoming records with existing ones based on a primary key.

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🔄 Choosing the Right Write Disposition

• Use replace when you need a fresh dataset every time (e.g., full data refresh).
• Use append when you want to continuously add data (e.g., log files, time-series data).
• Use merge when you need to consolidate updates with existing data.