laskoviymishka commented on code in PR #15750:
URL: https://github.com/apache/iceberg/pull/15750#discussion_r3589773388


##########
open-api/rest-catalog-open-api.yaml:
##########
@@ -3734,6 +3734,50 @@ components:
           type: array
           items:
             $ref: '#/components/schemas/StorageCredential'
+        labels:
+          $ref: '#/components/schemas/Labels'
+
+    Labels:
+      type: object
+      description: |
+        Catalog-provided metadata enrichment (for example ownership,
+        classification, or cost attribution) returned with a table or view.
+        Labels are ephemeral: catalog-owned, generated per request, and never
+        persisted to table metadata or versioned with table history. Optional;
+        clients may ignore them. Labels are catalog-specific; different 
catalogs
+        may return different or no labels for the same object. `table` carries
+        entity-level labels; `columns` is an array of per-column entries, each
+        identifying its column by field-id.
+      properties:
+        table:
+          type: object
+          description: Top-level entity labels (attached to the catalog object 
as a whole).
+          additionalProperties:
+            type: string
+        columns:
+          type: array
+          description: >-
+            Column-level labels. Each entry identifies its column by field-id.
+          items:
+            $ref: '#/components/schemas/ColumnLabels'

Review Comment:
   @danielcweeks / @rdblue want to hear you opinions on naming here.



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