goldmedal commented on code in PR #12263:
URL: https://github.com/apache/datafusion/pull/12263#discussion_r1741091339


##########
datafusion/core/src/datasource/physical_plan/csv.rs:
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@@ -112,6 +114,7 @@ impl CsvExecBuilder {
             has_header: false,
             delimiter: b',',
             quote: b'"',
+            terminator: None,

Review Comment:
   I did some tests. I think that `newlines_in_values` won't be impacted by 
`terminator`.  No matter how I change the terminator, the number of rows is the 
same.
   
   ```rust
           let session_ctx = SessionContext::new();
           let store = object_store::memory::InMemory::new();
   
           let data = bytes::Bytes::from("a,b\r1,\"2\na\"\r3,\"4\nb\"");
           let path = object_store::path::Path::from("a.csv");
           store.put(&path, data.into()).await.unwrap();
   
           let url = Url::parse("memory://").unwrap();
           session_ctx.register_object_store(&url, Arc::new(store));
   
           let df = session_ctx
               .read_csv("memory:///", 
CsvReadOptions::new().newlines_in_values(true).terminator(Some(b'\r')))
               .await
               .unwrap();
   
           let result = df.collect().await.unwrap();
           assert_eq!(result[0].num_rows(), 2);
   ```



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