Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 pclue/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 pclue/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+pclue/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

pclue/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9e150bb1b0b267f3cebf653ba672ce06e1e09a750c4db21e2fbf12dcd4aa9a33
+size 649342976