Update duckdb index files

.gitattributes

@@ -94,3 +94,4 @@ Pile-CC/partial-test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 BookCorpus2/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Books3/partial-test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Github/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+HackerNews/partial-train/index.duckdb filter=lfs diff=lfs merge=lfs -text

HackerNews/partial-train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c2c89a570f67cc875304dc2059b974df6029be6ae13b143074dcc225314ab6e6
+size 6516912128