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
+xjLee--english_test_01/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

xjLee--english_test_01/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aecf765f36423cd0f43f7a7d1742dbbc1869b9be1227d414fe0bc5e1eacc0298
+size 1060864