Update duckdb index files

.gitattributes

@@ -25,3 +25,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zstandard filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
+nell_candidate/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

nell_candidate/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0f1a36bf77f7493d25b52c6d035e9b5185c906ecc07be43e5abbcea290415435
+size 6489649152