Update duckdb index files

ayuan0324--ocean/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b67df74efba747567eb279a7417553dc330df8e4de779043406d9cbfb21c4407
-size 75247616
+oid sha256:b6e096515c732057d42afc0cdd4fad21c0c365230a3acd76a8f993840d344393
+size 75771904