Update duckdb index files

kasnerz--numericnlg/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:7496f9b00606368cad7da4223e0edcf5847cb9de9199d82fd4f9f5c284774c0e
-size 9711616
+oid sha256:54b73ce483a5ee33c8d06e91865c77b8b5dddd26e314648bdb04b580ebd78dfb
+size 9449472