From 9160e4aa95cd3c40ea0733d632692526049ed12b Mon Sep 17 00:00:00 2001
From: Sergei Petrunia <psergey@askmonty.org>
Date: Fri, 19 Jun 2020 22:04:02 +0300
Subject: Post-fix for 0a9633ee: Basic LEX::print function that supports
 UPDATEs

Backport this fix:
CLX-105: UPDATE query causes crash

LEX::print() should not crash when the UPDATE has no WHERE clause

Fixes CLX-373.
---
 sql/sql_lex.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc
index 671948f8e8d..f39f88fe843 100644
--- a/sql/sql_lex.cc
+++ b/sql/sql_lex.cc
@@ -3565,8 +3565,11 @@ void LEX::print(String *str, enum_query_type query_type)
       value->print(str, query_type);
     }
 
-    str->append(STRING_WITH_LEN(" WHERE "));
-    sel->where->print(str, query_type);
+    if (sel->where)
+    {
+      str->append(STRING_WITH_LEN(" WHERE "));
+      sel->where->print(str, query_type);
+    }
 
     if (sel->order_list.elements)
     {
-- 
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