Update duckdb index files

.gitattributes

@@ -4,3 +4,4 @@ junliang--symptom/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 junliang--symptom/test/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/test/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9b3c41961c65dfe3613140d3a3bbf09be9fed98cf0012381507c78f7cd7bee3b
+size 3682304