Update duckdb index files

generalization--testing/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:48364a0dc1751d384f5b7528890ad7ac5224d38b94405ad1e2ac95314f81b762
-size 2895872
+oid sha256:4165812e9c0da17fef6a3714ce664b95703b55f9559b58cff483d035ac8c9d2a
+size 2633728