From 5d585837d8c12b7bb0d4f72bbec86d796205fdb2 Mon Sep 17 00:00:00 2001
From: Gagan Goel <gagan.nith@gmail.com>
Date: Thu, 3 Oct 2019 16:12:06 -0400
Subject: [PATCH] Allow a window function in the ORDER BY clause.

---
 dbcon/mysql/ha_calpont_execplan.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dbcon/mysql/ha_calpont_execplan.cpp b/dbcon/mysql/ha_calpont_execplan.cpp
index 2eda37ba7..61c37a837 100644
--- a/dbcon/mysql/ha_calpont_execplan.cpp
+++ b/dbcon/mysql/ha_calpont_execplan.cpp
@@ -361,9 +361,10 @@ bool sortItemIsInGrouping(Item* sort_item, ORDER* groupcol)
         Item_func *ifp = reinterpret_cast<Item_func*>(sort_item);
         ifp->traverse_cond(check_sum_func_item, &found, Item::POSTFIX);
     }
-    else if (sort_item->type() == Item::CONST_ITEM)
+    else if (sort_item->type() == Item::CONST_ITEM ||
+             sort_item->type() == Item::WINDOW_FUNC_ITEM)
     {
-        found= true;
+        found = true;
     }
 
     for (; !found && groupcol; groupcol = groupcol->next)