# PromotedTag Tag keys the table indexes, with the policy applied to each. **Type**: `object` ## Properties - name: column (required) type: string description: The t_ index column for the key. - name: excluded (required) type: boolean description: Whether the stored policy leaves this key's column NULL. - name: key (required) type: string description: The tag key this column indexes. - name: protection (optional) type: enum: `REQUIRED`, `PARTITION_SOURCE` description: Why the key cannot be excluded: REQUIRED for service and host, PARTITION_SOURCE for a key the live partition spec buckets on. Absent when it can be.