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In a Trino catalog, you can use AI to classify a table. The AI reviews the table and its columns, and then suggests a description, tags that label how sensitive the data is, and business glossary terms. When you accept the result, NexusOne saves the tags in DataHub with a classification: prefix.

Prerequisites

Before starting this task, ensure you have the following:
  • Required roles: nx1_engineer, nx1_steward, or nx1_admin.
  • An existing table in a Trino catalog schema.

Classify a table in a Trino catalog

Perform these steps to classify a table in a Trino catalog.
  1. Log in to NexusOne.
  2. On the top navigation bar, hover your mouse over Catalog & Models and then select Catalogs.
  3. Click a catalog to view its schemas.
  4. Click a schema to view its tables.
  5. Click a table.
  6. In the Data Classification card, click Classify Table. If the table already has classification tags, then the button says Re-classify.
  7. Wait while NexusOne classifies the table. The card shows progress messages.
  8. Review the result:
    • Table Classification: Review the table description, the sensitivity, the tags, and the glossary terms. Clear the checkbox next to any tag or term you don’t want. You can also edit the description.
    • Column Classifications: Review the tags and glossary terms for each column. Clear the checkbox next to any you don’t want.
  9. Click Accept & Apply. To discard the result, click Reject instead.
After you accept, a message shows how many tags, columns, and glossary terms NexusOne applied.

Additional resources