Update duckdb index files

.gitattributes

@@ -122,3 +122,4 @@ default/validationclean/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/validationother/0000.parquet filter=lfs diff=lfs merge=lfs -text
 default/testclean/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/testother/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/trainclean100/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/trainclean100/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c3f7ee37a64fd2756999719807a7d11eb88cc86f86dc0a66793018d5d6b1f55d
+size 284176384