Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 cw1521--ember2018-malware/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 cw1521--ember2018-malware/partial-test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/partial-test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:73fe98e204ca1a10ca818cdffcd5854268861e4af3fbc295f37e840fe2133a25
+size 1645490176