Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 Anonymous2023--dataset2js/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Anonymous2023--dataset2js/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+Anonymous2023--dataset2js/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

Anonymous2023--dataset2js/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fc3d67308f4a8062d07ef92432b021fa50c2cd051364e8707356a4fe7e12a77c
+size 246951936