clear zum einbetten hinzugefügt

math-tutor/README.md

@@ -39,7 +39,7 @@ Ingest markdown docs (expects `markdown/sections`, `markdown/subsections`, `mark
 ```powershell
 cd math-tutor/backend
 .\.venv\Scripts\Activate.ps1
-python .\scripts\retrieval_cli.py ingest --base markdown
+python .\scripts\retrieval_cli.py ingest --base markdown --clear
 ```
 
 Query via CLI:

math-tutor/backend/app/deterministic_services/vector_store.py

@@ -227,6 +227,13 @@ def upsert_docs(pg_url: str, docs: List[DocRecord], embeddings: List[List[float]
     return len(rows)
 
 
+def clear_docs(pg_url: str) -> None:
+    with psycopg.connect(pg_url) as conn:
+        with conn.cursor() as cur:
+            cur.execute("TRUNCATE TABLE docs;")
+        conn.commit()
+
+
 @dataclass
 class Retrieved:
     uid: str

math-tutor/backend/scripts/retrieval_cli.py

@@ -43,6 +43,8 @@ def cli_ingest(args: argparse.Namespace) -> None:
     pg_url = args.pg or os.getenv("POSTGRES_URL")
     if not pg_url:
         raise ValueError("Missing POSTGRES_URL")
+    if args.clear:
+        vector_store.clear_docs(pg_url)
     upserted = vector_store.upsert_docs(pg_url, docs, embeddings)
     print(f"Ingested/upserted docs: {upserted}")
 
@@ -92,6 +94,7 @@ def main() -> int:
     ap_ing = sub.add_parser("ingest", help="Embed and upsert markdown docs")
     ap_ing.add_argument("--pg", default=None, help="Postgres URL (or set POSTGRES_URL)")
     ap_ing.add_argument("--base", default="markdown", help="Base folder with sections/subsections/childs")
+    ap_ing.add_argument("--clear", action="store_true", help="Clear docs table before ingest")
     ap_ing.set_defaults(func=cli_ingest)
 
     ap_q = sub.add_parser("query", help="Run retrieval")