From 25cb2b373c84b09a7b1720704e85c64d3df90f16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Lindstr=C3=B6m?= <jan.lindstrom@mariadb.com>
Date: Tue, 28 Apr 2020 16:20:24 +0300
Subject: [PATCH] MDEV-22128 : Server with wsrep_on crashes in do_rename upon
 RENAME TABLE on a view

We need to make sure that hton is not same as view_pseudo_hton
that is not NULL but not usable.
---
 mysql-test/suite/galera/r/galera_view.result | 5 +++++
 mysql-test/suite/galera/t/galera_view.test   | 7 +++++++
 sql/sql_rename.cc                            | 2 +-
 3 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 mysql-test/suite/galera/r/galera_view.result
 create mode 100644 mysql-test/suite/galera/t/galera_view.test

diff --git a/mysql-test/suite/galera/r/galera_view.result b/mysql-test/suite/galera/r/galera_view.result
new file mode 100644
index 00000000000..c9a827c6390
--- /dev/null
+++ b/mysql-test/suite/galera/r/galera_view.result
@@ -0,0 +1,5 @@
+connection node_2;
+connection node_1;
+CREATE VIEW v AS SELECT 1;
+RENAME TABLE v TO v2;
+DROP VIEW v2;
diff --git a/mysql-test/suite/galera/t/galera_view.test b/mysql-test/suite/galera/t/galera_view.test
new file mode 100644
index 00000000000..2bfeb3027a7
--- /dev/null
+++ b/mysql-test/suite/galera/t/galera_view.test
@@ -0,0 +1,7 @@
+--source include/galera_cluster.inc
+ 
+CREATE VIEW v AS SELECT 1;
+RENAME TABLE v TO v2;
+ 
+# Cleanup
+DROP VIEW v2;
diff --git a/sql/sql_rename.cc b/sql/sql_rename.cc
index 5fafd9fa28a..0ac97bbeafd 100644
--- a/sql/sql_rename.cc
+++ b/sql/sql_rename.cc
@@ -323,7 +323,7 @@ do_rename(THD *thd, TABLE_LIST *ren_table, const LEX_CSTRING *new_db,
   DBUG_ASSERT(!thd->locked_tables_mode);
 
 #ifdef WITH_WSREP
-  if (WSREP(thd) && hton &&
+  if (WSREP(thd) && hton && hton != view_pseudo_hton &&
       !wsrep_should_replicate_ddl(thd, hton->db_type))
     DBUG_RETURN(1);
 #endif