Update duckdb index files

.gitattributes

@@ -36,3 +36,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.mp3 filter=lfs diff=lfs merge=lfs -text
 *.ogg filter=lfs diff=lfs merge=lfs -text
 *.wav filter=lfs diff=lfs merge=lfs -text
+truongpdd--KDD22task2Full/valid/index.duckdb filter=lfs diff=lfs merge=lfs -text

truongpdd--KDD22task2Full/valid/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:760c79f4780b3ce9ae36fbaa07b47c8ffe2951ba44585fdb37bcfaf55ea0aff6
+size 1291857920