improve table for lists

crates/nu-command/src/table.rs

@@ -65,24 +65,28 @@ fn convert_to_table(iter: impl IntoIterator<Item = Value>) -> Option<nu_table::T
     let mut iter = iter.into_iter().peekable();
 
     if let Some(first) = iter.peek() {
-        let mut headers = match first {
+        let mut headers = first.columns();
-            Value::Record { .. } => first.columns(),
-            _ => ["Column_0".to_string()].to_vec(),
-        };
 
+        if !headers.is_empty() {
             headers.insert(0, "#".into());
+        }
 
         let mut data = vec![];
 
         for (row_num, item) in iter.enumerate() {
             let mut row = vec![row_num.to_string()];
 
+            if headers.is_empty() {
+                row.push(item.into_string())
+            } else {
                 for header in headers.iter().skip(1) {
                     let result = match item {
-                    Value::Record { .. } => item.clone().follow_cell_path(&[PathMember::String {
+                        Value::Record { .. } => {
+                            item.clone().follow_cell_path(&[PathMember::String {
                                 val: header.into(),
                                 span: Span::unknown(),
-                    }]),
+                            }])
+                        }
                         _ => Ok(item.clone()),
                     };
 
@@ -91,6 +95,7 @@ fn convert_to_table(iter: impl IntoIterator<Item = Value>) -> Option<nu_table::T
                         Err(_) => row.push(String::new()),
                     }
                 }
+            }
 
             data.push(row);
         }