From 62310caa32afe8d456d93ea4370b00f6ef2e8556 Mon Sep 17 00:00:00 2001
From: Jonathan Turner <jonathan.d.turner@gmail.com>
Date: Fri, 21 Jun 2019 19:52:15 +1200
Subject: [PATCH] now tableview forces being a table

---
 src/format/table.rs | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/format/table.rs b/src/format/table.rs
index 8a62b53a0c..d3b585c7a1 100644
--- a/src/format/table.rs
+++ b/src/format/table.rs
@@ -13,13 +13,24 @@ pub struct TableView {
 }
 
 impl TableView {
+    fn merge_descriptors(values: &[Value]) -> Vec<DataDescriptor> {
+        let mut ret = vec![];
+        for value in values {
+            for desc in value.data_descriptors() {
+                if !ret.contains(&desc) {
+                    ret.push(desc);
+                }
+            }
+        }
+        ret
+    }
+
     pub fn from_list(values: &[Value]) -> Option<TableView> {
         if values.len() == 0 {
             return None;
         }
 
-        let item = &values[0];
-        let headers = item.data_descriptors();
+        let headers = TableView::merge_descriptors(values);
 
         if headers.len() == 0 {
             return None;