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Schema changes (schema drift) are modifications to your data structure: columns added, removed, or renamed; data types changed; tables created or dropped. These changes can break downstream systems like dbt models, dashboards, and reports if not caught early. AnomalyArmor detects changes by comparing discovery runs. When a column disappears or a type changes, you get alerted before your pipelines fail.

Change Types

ChangeRisk LevelImpact
Column removedHighBreaks queries referencing it
Table removedHighBreaks all dependent queries
Column renamedHighOld name no longer works
Type changedMediumMay affect aggregations
Column addedLowUsually safe
Table addedLowInformational

Next Steps

View Change History

See what changed and when

Set Up Alerts

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