Update duckdb index files

.gitattributes

@@ -2,3 +2,4 @@ arbml--MOV/parquet-train.parquet filter=lfs diff=lfs merge=lfs -text
 arbml--MOV/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arbml--MOV/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/train/0000.parquet filter=lfs diff=lfs merge=lfs -text
+default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:da43f69124cd46008b45408c524f4ce8c4bdcbe0ddd07c1fe80d8e3a161a75fa
+size 6828032