Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 phi0108--demo-strucuture-en/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 phi0108--demo-strucuture-en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 phi0108--demo-structure-en/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+phi0108--demo-structure-en/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

phi0108--demo-structure-en/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cbb8b8c5c7668f6f7995df0adfc3e3bdbdbe4d3725409a2cbc74b7d2e12a4dd3
+size 1060864