Update duckdb index files

xkang--github-issues/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:d59e201b0a0c7d2bac9195dbf216591d880b249cc34a8a017c556bed5d08f018
-size 11022336
+oid sha256:49e609ef5857231cdab0732eee4b965e436eda114ec72c070b7e0c76254759fc
+size 16265216