Update duckdb index files

generalization--test_issue/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:8659e2e9828237160d5e1fce0fdc15afd75c07628f2a4bfde284efba721b3cb6
-size 3944448
+oid sha256:13ab395eab61c263402f4f7289abdc6187733bf2ac9dc0a4248d473026fda806
+size 3158016