Update duckdb index files

yuniv--sample3/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:46180ee71d2f6e0011f746c13af78d2a42112a705373ad305bc49d7354e0d07f
-size 7614464
+oid sha256:b31a1f0c15744b61a2e5229365f74ad5311e7505c62b4043f2e0dbf26b3f0dc4
+size 5779456