Update duckdb index files

.gitattributes

@@ -46,3 +46,4 @@ kgclue.knowledge09.jsonl filter=lfs diff=lfs merge=lfs -text
 kgclue.knowledge13.jsonl filter=lfs diff=lfs merge=lfs -text
 kgclue.knowledge14.jsonl filter=lfs diff=lfs merge=lfs -text
 kgclue.knowledge16.jsonl filter=lfs diff=lfs merge=lfs -text
+luozhouyang--kgclue-knowledge/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

luozhouyang--kgclue-knowledge/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:44a4dc66c816a1f5058d9bf6db8fb14a91ecab1c164e4d688457cfafd9b6e19f
+size 603205632