Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 c17hawke--stackoverflow-dataset/csv-train.parquet filter=lfs diff=lfs merge=lfs -text
 c17hawke--stackoverflow-dataset/csv-test.parquet filter=lfs diff=lfs merge=lfs -text
 c17hawke--stackoverflow-dataset/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+c17hawke--stackoverflow-dataset/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

c17hawke--stackoverflow-dataset/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c06d944edf1bfa07e8d3276fe093c9638082f7c43b08d2bbe27f5511bf4bb58b
+size 42741760