Update duckdb index files

bstrai--subj_multi/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:67bf943244ecc7d560f9cb0594b7ad06afb38bea08550b5f3dbb90b421f1a7f3
-size 16789504
+oid sha256:8d5342d6939d3d91d975bedf6c8c0a1ab9f697d19d0f21f75e79225855327dbe
+size 16527360