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A bad UPDATE just overwrote a table, and everyone downstream is already looking at the wrong numbers.
What you'll have at the end
The table pointing back at its last good snapshot, restored in milliseconds with no data copied
You need
A query engine already connected to the table that just got the bad write, with permission to run its rollback and snapshot-maintenance procedures.
Not covered
Recovering a table whose target snapshot has already been expired, or restoring from a backup system entirely outside the table's own history.
Set a snapshot expiration policy before old versions eat your storage bill
When you're setting the retention window itself ahead of any incident, rather than reacting to one that already happened.
Evolve a lakehouse table's schema without silently orphaning old data
When the bad write was actually a schema change rather than a data change a plain rollback can undo cleanly.
Checked 26 Aug 2026
Part of the Data Lakehouse cookbook