Column Lineage
Take a look at our short video on column lineage or keep reading for more.
Column Lineage Walkthrough
Coalesce includes a way to quickly view the lineage of each column as it is transformed throughout your nodes. We'll be using the following Node Graph in examples.
![sample DAG.png 2324](https://files.readme.io/fae450d-sample_DAG.png)
Example DAG
To view Column Lineage, take the following steps:
- Open a node
- Right-click on any populated column and select View Column Lineage
![source column.png 916](https://files.readme.io/c91a8cc-source_column.png)
Selecting View Column Lineage
- You'll now be in a new tab with the current Node highlighted in blue
From here you can select different columns of the selected node and it's lineage will be highlighted across the relevant Nodes. If you'd like to see lineage for columns in other Nodes, you can click ⋮ and then View Lineage on the others like in the following screenshot.
![column lineage.png 1522](https://files.readme.io/bd98aaf-column_lineage.png)
Viewing Lineage on different nodes
Column Propagation
Each individual column can have its addition and deletion to other nodes propagated as well by clicking on the three dots next to a the column name and selecting the relevant option. We recommend using Propagate Addition and Deletion for bulk column changes such as delete a large number of columns.
![propagate.png 945](https://files.readme.io/ba4d9e7-propagate.png)
Column propagation
Updated about 2 months ago