Update duckdb index files

rroyc20--trainL1/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d9975e2b13359519db4c9406cfd9a41c1325d752c8376131c4e71d7025860ae5
-size 6565888
+oid sha256:6b8bb36c5ca104f44367e2c516d050b60cb18131542275e74a37cb8e3fdfcd07
+size 4468736