Update duckdb index files

generalization--test_issue/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:13ab395eab61c263402f4f7289abdc6187733bf2ac9dc0a4248d473026fda806
-size 3158016
+oid sha256:ce11b3215e4169f6678c3a07ef6f41cc9ff0748bbd9c7735ee690c4612b53d6d
+size 2895872