Update duckdb index files

.gitattributes

@@ -57,3 +57,4 @@ Patt--ReCoRD_TH/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Patt--ReCoRD_TH/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/test/index.duckdb 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 sha256:7ad9427eb430533b31ce3133231401f406d40a7f04a6a7016dd233c21e852ed9
+size 623652864