Custom DB Column Profile Preview

Alation Cloud Service Applies to Alation Cloud Service instances of Alation

Customer Managed Applies to customer-managed instances of Alation

Available from release 2021.1

For a Custom DB data source, the Column Profile that you have run in the Catalog can also be made available as a Column Profile preview in Compose.

Profiling V2 has to be enabled on the instance for the Column Profile preview to appear in Compose (alation.feature_flags.enable_profiling_v2 = True).

To view the Column Profile:

  1. In Compose left-hand navigation, click on a Column object.

  2. Click the Previews tab of the Results area. The Column Profile will be displayed:

    ../../_images/CustomDB_Profiling_07.png

The Column Profile includes:

  • The Column value stats

  • The Value Frequency report that can be sorted by Frequency

View Additional Information

To view more information about the column:

  1. Click View More on top right of the preview. The Column Details info-box will open with details on:

    • The number of distinct values in the column

    • Top users

    • Query executions that include this Column object

    • Catalog Description field

    ../../_images/CustomDB_Profiling_08.png

  2. To close and return to Compose, click Close.