Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+leonweber--teaching_equations/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

leonweber--teaching_equations/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:08f564c00c2b3c075b5b9e1265ba9c6a3de72ab8110787b6bb5f9353681aeb3b
+size 1323008