From 2fb27a52b5794d25e210955c1488b8dd035056c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=91=A8=E6=A2=A6=E5=BA=B7?= <zhoumengkang@php.net>
Date: Thu, 14 Feb 2019 22:14:31 +0800
Subject: [PATCH] Update sql_sort.h

rowid sort  Place for NULL marker too
---
 sql/sql_sort.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sql/sql_sort.h b/sql/sql_sort.h
index fb988ac8c8a..66432e6718f 100644
--- a/sql/sql_sort.h
+++ b/sql/sql_sort.h
@@ -261,8 +261,8 @@ class Addon_fields {
 
 /**
   There are two record formats for sorting:
-    |<key a><key b>...|<rowid>|
-    /  sort_length    / ref_l /
+    |<key a><key b>...|<null bits>|<rowid>|
+    /  sort_length    /           / ref_l /
 
   or with "addon fields"
     |<key a><key b>...|<null bits>|<field a><field b>...|