Update duckdb index files

rguo123--trump_tweets/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6ecbbcce5f7a74b39d1d42a8bc781e1818179c68fb810fe9c7bc09620c91e8f1
-size 14168064
+oid sha256:8df9c4d8d7dee5ae8ca7c7424cd1a14065e0cfe84469405d745616bdc294f8fe
+size 11546624