Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 ksgr5566--trialx1/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ksgr5566--trialx1/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 ksgr5566--trialx1/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 sha256:8eb5cc06f6a6472e55b820c72fab3956b27845b023de434616ccebd54115c757
+size 1060864