upload dataset from CSV (multi-control, unified schema)

README.md

@@ -16,10 +16,10 @@ dataset_info:
     num_bytes: 105550701.0
     num_examples: 35
   - name: test
-    num_bytes: 2907334.0
+    num_bytes: 6884231.0
     num_examples: 12
-  download_size: 107056393
-  dataset_size: 108458035.0
+  download_size: 107056437
+  dataset_size: 112434932.0
 configs:
 - config_name: default
   data_files:

data/test-00000-of-00001.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:240d8ffa11955b3c8b737fdbc005707d18a912889b4f728c9b5bdcf34c590e01
-size 1809001
+oid sha256:816c57814de68010dc43821b9ac125fed6c3dd28b70681bce75766d7af27923b
+size 1809045