Update duckdb index files

.gitattributes

@@ -41,3 +41,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.wav filter=lfs diff=lfs merge=lfs -text
 naver-clova-ix--synthdog-ko/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/train/partial-index.duckdb filter=lfs diff=lfs merge=lfs -text

default/train/partial-index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d947a78c70cf5a24f3f4524f6c42bda87a2a3f38848372ce699df64f76c2f172
+size 5113917440