Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ damlab--HIV_PI/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 damlab--HIV_PI/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 damlab--HIV_PI/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
+default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1c52bf9ea6cd43eff8e20a507a93496e64eb365b05ea5ba6397d6c074926ad0b
+size 1060864