Time travel and Schema adaptation in Databricks

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As discussed in my earlier post on Databricks, Databricks offers two extremely cool features: 2. There’s been an update and it's been decided to drop the ‘Role’ column.

Few days pass by, and it's come to notice that other systems using this table are failing, and you need to get the column back. If the tabl e contained 5 records, you revive the column in a heartbeat.But production-level data contains 100000+ records.

Once the update is made (the column is dropped) and you’ve come to realize you need to get the column back, you can use Databricks Delta Time Travel: 2.

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