Versioning
What is data lineage?
Data lineage traces an output back to the source rows, the model, and the column definition that produced it.
Updated
How it works
- The output column names its inputs.
- The row names the source media.
- You follow those links when you need to explain a value.
What it is not
It is not an audit log of who logged in, and it is not a screenshot of a job graph.
data lineage: this, and the thing it is confused with
| This | Not this | |
|---|---|---|
| Traces | Output to source and expression | User logins |
| Stored as | Dependencies and versions | A drawing |
| Question | Why is this caption here? | Who deployed last Tuesday? |
Where Pixeltable fits
Pixeltable lineage is the dependency graph plus table versions, so a computed value can be traced to the row and the expression.
Questions
How does data lineage work?
The output column names its inputs. The row names the source media. You follow those links when you need to explain a value.
What is data lineage often confused with?
It is not an audit log of who logged in, and it is not a screenshot of a job graph.
Next step
Install the Pixeltable skill, or sign up for Cloud and run the same file on a hosted database.