Overview
The Catalog gives users a view of the data assets available in their workspace — tables, schemas, ownership, lineage, and access permissions — all in one place.
Sharing & Permissions
Catalog assets — tables, schemas, and datasets — can have their visibility and access controlled per user or group. Owners can grant or revoke permissions directly from the Catalog UI.
Column Tagging
Column tags in the Catalog describe what a column contains — for example PII, CONFIDENTIAL, or INTERNAL. Tags are the link between the metadata layer (Datahub) and the access control layer (Ranger): once a tag is applied to a column in Datahub, it becomes available in Ranger for tag-based restriction and masking policies.