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
+jlh--uci-adult-income/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

jlh--uci-adult-income/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2f2a9ecade2716d8b2005ceb0bb07cbafee885cba0374c2c1422b9774ebf56d7
+size 3420160