Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+pkuong--hitchhikersguide/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

pkuong--hitchhikersguide/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f8c7d5ea04ee8fd56c0b00924932ccb4d8a8db634430849cb41c4bf4f5c6f9b9
+size 1323008