fix(migrate): remove migration command to remote hf json

Author: kshitijrajsharma

.gitignore

@@ -25,4 +25,3 @@ experiments/parquet-history/*_work/
 /qa/
 
 CLAUDE.md
-experiments/migrate_work/

docs/rollups.md

@@ -50,8 +50,8 @@ Tags are stored one way in every queried store: a native list of `(key, value, c
 length_m)`. In DuckDB (the store and the rollup) that is a `LIST<STRUCT>`; in Postgres it is an array
 of the composite type `osmsg_tag`. A tag breakdown reads that column directly, the same code on either
 engine, with no per-query JSON parsing. The published `changefiles` dataset stores the same native
-list, so history reads it with a direct column copy. An existing Postgres deployment moves to the
-native column once with `docs/migrate_pg_native_tags.sql`; a fresh deployment creates it on first start.
+list, so history reads it with a direct column copy. A Postgres deployment creates the composite type
+and column on first start.
 
 `osmsg.catalog` combines two sources into one relation, split at the frontier: history comes from the
 `hashtag_changeset` rollup, and the recent tail (from the frontier on) is derived on the fly from the

osmsg/maintain/cli.py

@@ -72,24 +72,6 @@ def convert_cmd(
     info(f"datasets written to {out}/changefiles and {out}/changesets")
 
 
-@maintain_app.command("migrate-tags")
-def migrate_tags_cmd(
-    repo: Annotated[str, typer.Option("--repo", help="HuggingFace dataset repo id to migrate in place.")],
-    work_dir: Annotated[Path, typer.Option("--work-dir", help="Scratch dir for converted partitions.")] = Path(
-        "migrate_work"
-    ),
-    memory_limit: Annotated[
-        str, typer.Option("--memory-limit", help="DuckDB memory cap per partition (e.g. 12GB).")
-    ] = "12GB",
-) -> None:
-    """Rewrite the published changefiles partitions from JSON tag_stats to the native tags column
-    (one-time, idempotent). Needs a HuggingFace login and uv/uvx for the upload."""
-    from .migrate import migrate_changefiles_tags
-
-    migrated, skipped = migrate_changefiles_tags(repo, work_dir, memory_limit=memory_limit)
-    info(f"migrate-tags: {migrated} migrated, {skipped} already native")
-
-
 @maintain_app.command("prune-pg")
 def prune_pg_cmd(
     psql_dsn: Annotated[str, typer.Option("--psql-dsn", help="Postgres DSN of the deployment to prune.")],