backlog: park TASK-17 tfidf as DRAFT-10 (very low prio), depends on COO (DRAFT-9)

Author: ahrzb

…-array-multi-hot-opaque-needs-explode.md …-array-multi-hot-opaque-needs-explode.mdbacklog/tasks/task-17 - Feature-output-tfidf-array-multi-hot-opaque-needs-explode.md renamed to backlog/drafts/draft-10 - Feature-output-tfidf-array-multi-hot-opaque-needs-explode.md backlog/tasks/task-17 - Feature-output-tfidf-array-multi-hot-opaque-needs-explode.md renamed to backlog/drafts/draft-10 - Feature-output-tfidf-array-multi-hot-opaque-needs-explode.md

@@ -1,14 +1,15 @@
 ---
-id: TASK-17
+id: DRAFT-10
 title: 'Feature output: tfidf / array multi-hot (opaque, needs explode)'
-status: To Do
+status: Draft
 assignee: []
 created_date: '2026-07-18 15:52'
-updated_date: '2026-07-23 00:52'
+updated_date: '2026-07-23 04:46'
 labels:
   - feature-output
 milestone: m-1
-dependencies: []
+dependencies:
+  - DRAFT-9
 documentation:
   - 'doc-10 (Feature-output model — records, dense, sparse)'
   - doc-9 (Rich type system and UNNEST)
@@ -26,3 +27,13 @@ tfidf and array multi-hot need variable-expansion (explode), so they are the OPA
 <!-- AC:BEGIN -->
 - [ ] #1 tfidf + array multi-hot available via the opaque-transform path
 <!-- AC:END -->
+
+## Comments
+
+<!-- COMMENTS:BEGIN -->
+author: Iris (PM)
+created: 2026-07-23 04:46
+---
+Parked as Draft (2026-07-23): tfidf / array multi-hot is very low priority. Depends on the sparse-COO column work (DRAFT-9) — tfidf output is sparse and needs that materializer path before it's buildable. Re-promote once DRAFT-9 is scoped/done and there's demand.
+---
+<!-- COMMENTS:END -->