Update duckdb index files

default/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:1264747d33cbe922297dd99e13e699272ad160fb069fe20b223acebb990844bb
-size 7352320
+oid sha256:40d1e826ed4ecc600fbd3ac223ff15cd5be27e9c852a6b90219e7264d4303ce0
+size 4206592