Atlas Cloud now traces column-level data lineage across tables, views, and datasets. Select any column to see where its data comes from, which transformation expressions shape it, and what downstream objects depend on it.

The lineage graph lets you visually trace how columns are derived from upstream sources through transformation expressions. Lineage is currently supported for PostgreSQL, MySQL, and ClickHouse, with more drivers coming soon.

Atlas Cloud lineage graph showing column lineage with a pinned transformation expression

Open the Lineage Graph

In the project overview, click the Lineage tab and select a table or view. You can also open the lineage graph from the ERD and Docs views.

Atlas Cloud overview page with the Lineage tab selected

Select and Pin Columns

Click a column to inspect its lineage. Select multiple columns to see their lineage together. Click a selected column again to pin it and highlight its full lineage path.

Pinning a selected column in the Atlas Cloud lineage graph

Inspect Transformation Expressions

Atlas marks transformation steps on the lineage path with [f]. Hover to preview the expression, or click to keep it visible while you continue exploring. This is useful for understanding how derived columns like revenue calculations or status aggregations are built from source fields.

Previewing a transformation expression from the lineage path in Atlas Cloud

To learn more, see the Column-Level Data Lineage documentation.