From 22073cbf3b507969eccee09cf4282aa70cd4c914 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Fri, 23 Feb 2018 20:33:48 +0100
Subject: omit system invisible fields from the duplicate key error

just as SHOW CREATE TABLE omits them from the index definition
---
 sql/key.cc | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sql/key.cc')

diff --git a/sql/key.cc b/sql/key.cc
index 5c1afb1f82d..8642820ff3f 100644
--- a/sql/key.cc
+++ b/sql/key.cc
@@ -427,6 +427,8 @@ void key_unpack(String *to, TABLE *table, KEY *key)
        key_part < key_part_end;
        key_part++)
   {
+    if (key_part->field->invisible > INVISIBLE_USER)
+      continue;
     if (to->length())
       to->append('-');
     if (key_part->null_bit)
-- 
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