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
+liyucheng--zhihu_26k/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

liyucheng--zhihu_26k/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:de3fb803c8d5a104e949c86c1336ef2bc2ff6bec78efc57594d5b6b601283c26
+size 91238400