From 5796fe6c5b5131060a38ce29d9c9b8fab39eff8d Mon Sep 17 00:00:00 2001
From: Richard Shadrach <45562402+rhshadrach@users.noreply.github.com>
Date: Thu, 10 Nov 2022 15:32:43 -0500
Subject: [PATCH] Backport PR #49615: REGR: Better warning in pivot_table when
 dropping nuisance columns