Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 tilyupo--quac_cqa/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 tilyupo--quac_cqa/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/validation/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 sha256:87697fca3bce8d659e9519a0730c18b99b38b0bc7d230b76f26166469e0dd06c
+size 323760128