Update duckdb index files

.gitattributes

@@ -73,3 +73,4 @@ OVER_2CLS_N40_test_df.csv filter=lfs diff=lfs merge=lfs -text
 OVER_2CLS_N50_train_df.csv filter=lfs diff=lfs merge=lfs -text
 OVER_2CLS_N50_test_df.csv filter=lfs diff=lfs merge=lfs -text
 wikilee--ADFA_Mapping/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+wikilee--ADFA_Mapping/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

wikilee--ADFA_Mapping/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:28716e51ea265278fbec5c73b073e5681de0ff0a738e9ee2030c3c7da413e06d
+size 669528064