Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 arbml--BAEC/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arbml--BAEC/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 sha256:675c0d2b3ee089dd06de08c8f02ecf64c61b169a02fb46c26d33118b5c99009b
+size 1060864