Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 test_transactions/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+train_transactions/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

train_transactions/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f5d18704ccd0767855471ac5cbefd68c2a81d432b02591a53c76b550aa109f01
+size 6122909696