From 0f81553b3f561ec146772e0a48af06a1cb2e7b0c Mon Sep 17 00:00:00 2001
From: Simon Willison <swillison@gmail.com>
Date: Wed, 18 Mar 2026 10:47:05 -0700
Subject: [PATCH] No hide this column on last remaining column

---
 datasette/static/table.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/datasette/static/table.js b/datasette/static/table.js
index 707bfe86..1e243703 100644
--- a/datasette/static/table.js
+++ b/datasette/static/table.js
@@ -110,6 +110,14 @@ function shouldShowShowAllColumns() {
   return params.getAll("_nocol").length || params.getAll("_col").length;
 }
 
+function hasMultipleVisibleColumns(manager) {
+  return (
+    Array.from(document.querySelectorAll(manager.selectors.tableHeaders)).filter(
+      (th) => th.dataset.column && th.dataset.isLinkColumn !== "1",
+    ).length > 1
+  );
+}
+
 function buildColumnActionItems(manager, th, options) {
   options = options || {};
   var params = getParams();
@@ -163,7 +171,7 @@ function buildColumnActionItems(manager, th, options) {
     });
   }
 
-  if (th.dataset.isPk !== "1") {
+  if (th.dataset.isPk !== "1" && hasMultipleVisibleColumns(manager)) {
     columnActions.push({
       label: "Hide this column",
       href: hideColumnUrl(column),