Merge branch '10.1' into 10.2

23 files changed, 510 insertions, 76 deletions

diff --git a/client/mysql_upgrade.c b/client/mysql_upgrade.c
index 227b66e8c86..2c55251c71b 100644
--- a/client/mysql_upgrade.c
+++ b/client/mysql_upgrade.c
@@ -18,7 +18,7 @@
 
 #include "client_priv.h"
 #include <sslopt-vars.h>
-#include "../scripts/mysql_fix_privilege_tables_sql.c"
+#include <../scripts/mysql_fix_privilege_tables_sql.c>
 
 #include <welcome_copyright_notice.h> /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
 
diff --git a/mysql-test/include/have_not_innodb_plugin.inc b/mysql-test/include/have_not_innodb_plugin.inc
deleted file mode 100644
index e40fd811021..00000000000
--- a/mysql-test/include/have_not_innodb_plugin.inc
+++ /dev/null
@@ -1,4 +0,0 @@
-disable_query_log;
---require r/not_true.require
-select (PLUGIN_LIBRARY LIKE 'ha_innodb_plugin%' OR PLUGIN_DESCRIPTION LIKE '%xtradb%') as `TRUE` from information_schema.plugins where PLUGIN_NAME='InnoDB';
-enable_query_log;
diff --git a/mysql-test/include/have_static_innodb.inc b/mysql-test/include/have_static_innodb.inc
new file mode 100644
index 00000000000..0d7bb856f4f
--- /dev/null
+++ b/mysql-test/include/have_static_innodb.inc
@@ -0,0 +1,7 @@
+source include/have_innodb.inc;
+
+if (!`select count(*) from information_schema.plugins
+         where plugin_name = 'innodb' and plugin_status = 'active' and
+              plugin_library is null`) {
+  skip Need compiled-in InnoDB;
+}
diff --git a/mysql-test/r/blackhole.result b/mysql-test/r/blackhole.result
index 36f5459ff85..a7281c42ca7 100644
--- a/mysql-test/r/blackhole.result
+++ b/mysql-test/r/blackhole.result
@@ -24,3 +24,9 @@ SELECT 0 FROM t1 FORCE INDEX FOR GROUP BY(a) WHERE a = 0 OR b = 0 AND c = 0;
 0
 DROP TABLE t1;
 End of 5.6 tests
+CREATE TABLE `t` (
+`a` varchar(3000) NOT NULL default '',
+PRIMARY KEY  (`a`)
+) ENGINE=BLACKHOLE;
+DROP TABLE `t`;
+End of 10.1 tests
diff --git a/mysql-test/r/bootstrap_innodb.result b/mysql-test/r/bootstrap_innodb.result
new file mode 100644
index 00000000000..2fc7800843b
--- /dev/null
+++ b/mysql-test/r/bootstrap_innodb.result
@@ -0,0 +1,7 @@
+create table t1(a int) engine=innodb;
+select * from t1;
+a
+1
+2
+5
+drop table t1;
diff --git a/mysql-test/r/lock_view.result b/mysql-test/r/lock_view.result
new file mode 100644
index 00000000000..4d375bace42
--- /dev/null
+++ b/mysql-test/r/lock_view.result
@@ -0,0 +1,231 @@
+create database mysqltest1;
+create database mysqltest2;
+create database mysqltest3;
+create user invoker@localhost;
+create user definer@localhost;
+grant select,show view on mysqltest1.* to invoker@localhost;
+grant select,show view on mysqltest1.* to definer@localhost;
+grant select,show view on mysqltest2.* to invoker@localhost;
+grant select,show view on mysqltest2.* to definer@localhost;
+grant select,show view on mysqltest3.* to invoker@localhost;
+grant select on performance_schema.* to definer@localhost;
+create table mysqltest1.t1 (a int);
+create definer=definer@localhost view mysqltest2.v2 as select * from mysqltest1.t1;
+create definer=definer@localhost view mysqltest3.v3 as select * from mysqltest2.v2;
+create definer=definer@localhost view mysqltest3.v3is as select schema_name from information_schema.schemata order by schema_name;
+create definer=definer@localhost view mysqltest3.v3ps as select user from performance_schema.users where current_connections>0 order by user;
+create definer=definer@localhost view mysqltest3.v3nt as select 1;
+create definer=definer@localhost sql security invoker view mysqltest3.v3i as select * from mysqltest1.t1;
+
+CREATE DATABASE /*!32312 IF NOT EXISTS*/ `mysqltest1` /*!40100 DEFAULT CHARACTER SET latin1 */;
+
+USE `mysqltest1`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+CREATE DATABASE /*!32312 IF NOT EXISTS*/ `mysqltest2` /*!40100 DEFAULT CHARACTER SET latin1 */;
+
+USE `mysqltest2`;
+SET @saved_cs_client     = @@character_set_client;
+SET character_set_client = utf8;
+/*!50001 CREATE TABLE `v2` (
+  `a` tinyint NOT NULL
+) ENGINE=MyISAM */;
+SET character_set_client = @saved_cs_client;
+
+CREATE DATABASE /*!32312 IF NOT EXISTS*/ `mysqltest3` /*!40100 DEFAULT CHARACTER SET latin1 */;
+
+USE `mysqltest3`;
+SET @saved_cs_client     = @@character_set_client;
+SET character_set_client = utf8;
+/*!50001 CREATE TABLE `v3` (
+  `a` tinyint NOT NULL
+) ENGINE=MyISAM */;
+SET character_set_client = @saved_cs_client;
+SET @saved_cs_client     = @@character_set_client;
+SET character_set_client = utf8;
+/*!50001 CREATE TABLE `v3i` (
+  `a` tinyint NOT NULL
+) ENGINE=MyISAM */;
+SET character_set_client = @saved_cs_client;
+SET @saved_cs_client     = @@character_set_client;
+SET character_set_client = utf8;
+/*!50001 CREATE TABLE `v3is` (
+  `schema_name` tinyint NOT NULL
+) ENGINE=MyISAM */;
+SET character_set_client = @saved_cs_client;
+SET @saved_cs_client     = @@character_set_client;
+SET character_set_client = utf8;
+/*!50001 CREATE TABLE `v3nt` (
+  `1` tinyint NOT NULL
+) ENGINE=MyISAM */;
+SET character_set_client = @saved_cs_client;
+SET @saved_cs_client     = @@character_set_client;
+SET character_set_client = utf8;
+/*!50001 CREATE TABLE `v3ps` (
+  `user` tinyint NOT NULL
+) ENGINE=MyISAM */;
+SET character_set_client = @saved_cs_client;
+
+USE `mysqltest1`;
+
+USE `mysqltest2`;
+/*!50001 DROP TABLE IF EXISTS `v2`*/;
+/*!50001 SET @saved_cs_client          = @@character_set_client */;
+/*!50001 SET @saved_cs_results         = @@character_set_results */;
+/*!50001 SET @saved_col_connection     = @@collation_connection */;
+/*!50001 SET character_set_client      = latin1 */;
+/*!50001 SET character_set_results     = latin1 */;
+/*!50001 SET collation_connection      = latin1_swedish_ci */;
+/*!50001 CREATE ALGORITHM=UNDEFINED */
+/*!50013 DEFINER=`definer`@`localhost` SQL SECURITY DEFINER */
+/*!50001 VIEW `v2` AS select `mysqltest1`.`t1`.`a` AS `a` from `mysqltest1`.`t1` */;
+/*!50001 SET character_set_client      = @saved_cs_client */;
+/*!50001 SET character_set_results     = @saved_cs_results */;
+/*!50001 SET collation_connection      = @saved_col_connection */;
+
+USE `mysqltest3`;
+/*!50001 DROP TABLE IF EXISTS `v3`*/;
+/*!50001 SET @saved_cs_client          = @@character_set_client */;
+/*!50001 SET @saved_cs_results         = @@character_set_results */;
+/*!50001 SET @saved_col_connection     = @@collation_connection */;
+/*!50001 SET character_set_client      = latin1 */;
+/*!50001 SET character_set_results     = latin1 */;
+/*!50001 SET collation_connection      = latin1_swedish_ci */;
+/*!50001 CREATE ALGORITHM=UNDEFINED */
+/*!50013 DEFINER=`definer`@`localhost` SQL SECURITY DEFINER */
+/*!50001 VIEW `v3` AS select `v2`.`a` AS `a` from `mysqltest2`.`v2` */;
+/*!50001 SET character_set_client      = @saved_cs_client */;
+/*!50001 SET character_set_results     = @saved_cs_results */;
+/*!50001 SET collation_connection      = @saved_col_connection */;
+/*!50001 DROP TABLE IF EXISTS `v3i`*/;
+/*!50001 SET @saved_cs_client          = @@character_set_client */;
+/*!50001 SET @saved_cs_results         = @@character_set_results */;
+/*!50001 SET @saved_col_connection     = @@collation_connection */;
+/*!50001 SET character_set_client      = latin1 */;
+/*!50001 SET character_set_results     = latin1 */;
+/*!50001 SET collation_connection      = latin1_swedish_ci */;
+/*!50001 CREATE ALGORITHM=UNDEFINED */
+/*!50013 DEFINER=`definer`@`localhost` SQL SECURITY INVOKER */
+/*!50001 VIEW `v3i` AS select `mysqltest1`.`t1`.`a` AS `a` from `mysqltest1`.`t1` */;
+/*!50001 SET character_set_client      = @saved_cs_client */;
+/*!50001 SET character_set_results     = @saved_cs_results */;
+/*!50001 SET collation_connection      = @saved_col_connection */;
+/*!50001 DROP TABLE IF EXISTS `v3is`*/;
+/*!50001 SET @saved_cs_client          = @@character_set_client */;
+/*!50001 SET @saved_cs_results         = @@character_set_results */;
+/*!50001 SET @saved_col_connection     = @@collation_connection */;
+/*!50001 SET character_set_client      = latin1 */;
+/*!50001 SET character_set_results     = latin1 */;
+/*!50001 SET collation_connection      = latin1_swedish_ci */;
+/*!50001 CREATE ALGORITHM=UNDEFINED */
+/*!50013 DEFINER=`definer`@`localhost` SQL SECURITY DEFINER */
+/*!50001 VIEW `v3is` AS select `information_schema`.`schemata`.`SCHEMA_NAME` AS `schema_name` from `information_schema`.`schemata` order by `information_schema`.`schemata`.`SCHEMA_NAME` */;
+/*!50001 SET character_set_client      = @saved_cs_client */;
+/*!50001 SET character_set_results     = @saved_cs_results */;
+/*!50001 SET collation_connection      = @saved_col_connection */;
+/*!50001 DROP TABLE IF EXISTS `v3nt`*/;
+/*!50001 SET @saved_cs_client          = @@character_set_client */;
+/*!50001 SET @saved_cs_results         = @@character_set_results */;
+/*!50001 SET @saved_col_connection     = @@collation_connection */;
+/*!50001 SET character_set_client      = latin1 */;
+/*!50001 SET character_set_results     = latin1 */;
+/*!50001 SET collation_connection      = latin1_swedish_ci */;
+/*!50001 CREATE ALGORITHM=UNDEFINED */
+/*!50013 DEFINER=`definer`@`localhost` SQL SECURITY DEFINER */
+/*!50001 VIEW `v3nt` AS select 1 AS `1` */;
+/*!50001 SET character_set_client      = @saved_cs_client */;
+/*!50001 SET character_set_results     = @saved_cs_results */;
+/*!50001 SET collation_connection      = @saved_col_connection */;
+/*!50001 DROP TABLE IF EXISTS `v3ps`*/;
+/*!50001 SET @saved_cs_client          = @@character_set_client */;
+/*!50001 SET @saved_cs_results         = @@character_set_results */;
+/*!50001 SET @saved_col_connection     = @@collation_connection */;
+/*!50001 SET character_set_client      = latin1 */;
+/*!50001 SET character_set_results     = latin1 */;
+/*!50001 SET collation_connection      = latin1_swedish_ci */;
+/*!50001 CREATE ALGORITHM=UNDEFINED */
+/*!50013 DEFINER=`definer`@`localhost` SQL SECURITY DEFINER */
+/*!50001 VIEW `v3ps` AS select `performance_schema`.`users`.`USER` AS `user` from `performance_schema`.`users` where `performance_schema`.`users`.`CURRENT_CONNECTIONS` > 0 order by `performance_schema`.`users`.`USER` */;
+/*!50001 SET character_set_client      = @saved_cs_client */;
+/*!50001 SET character_set_results     = @saved_cs_results */;
+/*!50001 SET collation_connection      = @saved_col_connection */;
+connect inv,localhost,invoker;
+lock table mysqltest3.v3 write;
+ERROR 42000: Access denied for user 'invoker'@'localhost' to database 'mysqltest3'
+disconnect inv;
+connection default;
+grant lock tables on mysqltest3.* to invoker@localhost;
+connect inv,localhost,invoker;
+show create view mysqltest3.v3;
+View	Create View	character_set_client	collation_connection
+v3	CREATE ALGORITHM=UNDEFINED DEFINER=`definer`@`localhost` SQL SECURITY DEFINER VIEW `mysqltest3`.`v3` AS select `v2`.`a` AS `a` from `mysqltest2`.`v2`	latin1	latin1_swedish_ci
+show create view mysqltest3.v3is;
+View	Create View	character_set_client	collation_connection
+v3is	CREATE ALGORITHM=UNDEFINED DEFINER=`definer`@`localhost` SQL SECURITY DEFINER VIEW `mysqltest3`.`v3is` AS select `information_schema`.`schemata`.`SCHEMA_NAME` AS `schema_name` from `information_schema`.`schemata` order by `information_schema`.`schemata`.`SCHEMA_NAME`	latin1	latin1_swedish_ci
+show create view mysqltest3.v3ps;
+View	Create View	character_set_client	collation_connection
+v3ps	CREATE ALGORITHM=UNDEFINED DEFINER=`definer`@`localhost` SQL SECURITY DEFINER VIEW `mysqltest3`.`v3ps` AS select `performance_schema`.`users`.`USER` AS `user` from `performance_schema`.`users` where `performance_schema`.`users`.`CURRENT_CONNECTIONS` > 0 order by `performance_schema`.`users`.`USER`	latin1	latin1_swedish_ci
+show create view mysqltest3.v3nt;
+View	Create View	character_set_client	collation_connection
+v3nt	CREATE ALGORITHM=UNDEFINED DEFINER=`definer`@`localhost` SQL SECURITY DEFINER VIEW `mysqltest3`.`v3nt` AS select 1 AS `1`	latin1	latin1_swedish_ci
+show create view mysqltest3.v3i;
+View	Create View	character_set_client	collation_connection
+v3i	CREATE ALGORITHM=UNDEFINED DEFINER=`definer`@`localhost` SQL SECURITY INVOKER VIEW `mysqltest3`.`v3i` AS select `mysqltest1`.`t1`.`a` AS `a` from `mysqltest1`.`t1`	latin1	latin1_swedish_ci
+lock table mysqltest3.v3 write;
+ERROR HY000: View 'mysqltest3.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+lock table mysqltest3.v3i write;
+ERROR HY000: View 'mysqltest3.v3i' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+lock table mysqltest3.v3is write;
+select * from mysqltest3.v3is;
+schema_name
+information_schema
+mysqltest1
+mysqltest2
+performance_schema
+test
+lock table mysqltest3.v3ps write;
+select * from mysqltest3.v3ps;
+user
+NULL
+invoker
+root
+lock table mysqltest3.v3nt write;
+select * from mysqltest3.v3nt;
+1
+1
+disconnect inv;
+connection default;
+grant lock tables on mysqltest2.* to invoker@localhost;
+connect inv,localhost,invoker;
+lock table mysqltest3.v3 write;
+ERROR HY000: View 'mysqltest3.v3' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+lock table mysqltest3.v3i write;
+ERROR HY000: View 'mysqltest3.v3i' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+disconnect inv;
+connection default;
+grant lock tables on mysqltest1.* to definer@localhost;
+connect inv,localhost,invoker;
+lock table mysqltest3.v3 write;
+select * from mysqltest3.v3;
+a
+lock table mysqltest3.v3i write;
+ERROR HY000: View 'mysqltest3.v3i' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
+disconnect inv;
+connection default;
+grant lock tables on mysqltest1.* to invoker@localhost;
+connect inv,localhost,invoker;
+lock table mysqltest3.v3i write;
+select * from mysqltest3.v3i;
+a
+disconnect inv;
+connection default;
+drop user invoker@localhost;
+drop user definer@localhost;
+drop database mysqltest1;
+drop database mysqltest2;
+drop database mysqltest3;
diff --git a/mysql-test/r/not_true.require b/mysql-test/r/not_true.require
deleted file mode 100644
index 0032832f3d1..00000000000
--- a/mysql-test/r/not_true.require
+++ /dev/null
@@ -1,2 +0,0 @@
-TRUE
-NULL
diff --git a/mysql-test/r/processlist_notembedded.result b/mysql-test/r/processlist_notembedded.result
index 6231abb6550..ddde45f3031 100644
--- a/mysql-test/r/processlist_notembedded.result
+++ b/mysql-test/r/processlist_notembedded.result
@@ -14,3 +14,16 @@ disconnect con1;
 connection default;
 SET DEBUG_SYNC = 'RESET';
 End of 5.5 tests
+#
+# MDEV-23752: SHOW EXPLAIN FOR thd waits for sleep
+#
+connect  con1,localhost,root,,;
+select sleep(100000);;
+connection default;
+SHOW EXPLAIN FOR con_id;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
+Warnings:
+Note	1003	select sleep(100000)
+KILL QUERY con_id;
+# End of 10.2 tests
diff --git a/mysql-test/suite/sys_vars/r/replicate_do_db_basic.result b/mysql-test/suite/sys_vars/r/replicate_do_db_basic.result
index a05b85a9bfd..54adf835962 100644
--- a/mysql-test/suite/sys_vars/r/replicate_do_db_basic.result
+++ b/mysql-test/suite/sys_vars/r/replicate_do_db_basic.result
@@ -37,5 +37,9 @@ SET @@GLOBAL.replicate_do_db=null;
 SELECT @@GLOBAL.replicate_do_db;
 @@GLOBAL.replicate_do_db
 
+SET @@GLOBAL.replicate_do_db=DEFAULT;
+SELECT @@GLOBAL.replicate_do_db;
+@@GLOBAL.replicate_do_db
+
 # Cleanup.
 SET @@GLOBAL.replicate_do_db = @save_replicate_do_db;
diff --git a/mysql-test/suite/sys_vars/r/rpl_init_slave_func.result b/mysql-test/suite/sys_vars/r/rpl_init_slave_func.result
index ec3b39124fe..249d745482a 100644
--- a/mysql-test/suite/sys_vars/r/rpl_init_slave_func.result
+++ b/mysql-test/suite/sys_vars/r/rpl_init_slave_func.result
@@ -1,6 +1,6 @@
 include/master-slave.inc
 [connection master]
-connection slave;
+include/sync_slave_sql_with_master.inc
 SET @start_max_connections= @@global.max_connections;
 SET @start_init_slave= @@global.init_slave;
 SET NAMES utf8;
@@ -19,18 +19,12 @@ SELECT @@global.init_slave = 'SET @@global.max_connections = @@global.max_connec
 1
 Expect 1
 include/assert.inc [@@global.max_connections = @start_max_connections]
-STOP SLAVE;
-RESET MASTER;
-RESET SLAVE;
-START SLAVE;
-include/wait_for_slave_to_start.inc
+include/restart_slave.inc
+connection master;
+include/sync_slave_sql_with_master.inc
 include/assert.inc [@@global.max_connections = @start_max_connections + 1]
 SET @@global.init_slave = "SET @a=5";
-STOP SLAVE;
-RESET MASTER;
-RESET SLAVE;
-START SLAVE;
-include/wait_for_slave_to_start.inc
+include/restart_slave.inc
 SHOW VARIABLES LIKE 'init_slave';
 Variable_name	Value
 init_slave	SET @a=5
diff --git a/mysql-test/suite/sys_vars/t/replicate_do_db_basic.test b/mysql-test/suite/sys_vars/t/replicate_do_db_basic.test
index 59d0176add2..b7004d1938b 100644
--- a/mysql-test/suite/sys_vars/t/replicate_do_db_basic.test
+++ b/mysql-test/suite/sys_vars/t/replicate_do_db_basic.test
@@ -38,5 +38,8 @@ SELECT @@GLOBAL.replicate_do_db;
 SET @@GLOBAL.replicate_do_db=null;
 SELECT @@GLOBAL.replicate_do_db;
 
+SET @@GLOBAL.replicate_do_db=DEFAULT;
+SELECT @@GLOBAL.replicate_do_db;
+
 --echo # Cleanup.
 SET @@GLOBAL.replicate_do_db = @save_replicate_do_db;
diff --git a/mysql-test/suite/sys_vars/t/rpl_init_slave_func.test b/mysql-test/suite/sys_vars/t/rpl_init_slave_func.test
index f8cbc54fc70..0e5ff7a3f39 100644
--- a/mysql-test/suite/sys_vars/t/rpl_init_slave_func.test
+++ b/mysql-test/suite/sys_vars/t/rpl_init_slave_func.test
@@ -29,7 +29,13 @@
 ###############################################################################
 
 source include/master-slave.inc;
-connection slave;
+
+# Since a part of slave SQL thread initialisation happens after Slave_SQL_Running
+# has been set to Yes, there is a race condition between initialisation above and
+# init_slave setting given below. Synchronise slave applier with master to ensure
+# init_slave is complete and applier had processed few events like FD.
+--source include/sync_slave_sql_with_master.inc
+
 --disable_query_log
 call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
 --enable_query_log
@@ -66,14 +72,15 @@ let $wait_condition= SELECT @@global.max_connections = @start_max_connections;
 --let $assert_text= @@global.max_connections = @start_max_connections
 --let $assert_cond= @@global.max_connections = @start_max_connections
 --source include/assert.inc
-#
-# reset of the server
-STOP SLAVE;
---wait_for_slave_to_stop
-RESET MASTER;
-RESET SLAVE;
-START SLAVE;
-source include/wait_for_slave_to_start.inc;
+
+--source include/restart_slave_sql.inc
+
+# Upon slave start, sync the applier with master, to ensure slave has
+# completed init_slave command execution and processed FD event from the
+# master.
+--connection master
+--source include/sync_slave_sql_with_master.inc
+
 #
 # wait for the slave threads have set the global variable.
 let $wait_timeout= 90;
@@ -87,12 +94,7 @@ let $wait_condition= SELECT @@global.max_connections = @start_max_connections +
 # Setting a variable(which is local to a session) and must not be visible
 SET @@global.init_slave = "SET @a=5";
 #
-STOP SLAVE;
---wait_for_slave_to_stop
-RESET MASTER;
-RESET SLAVE;
-START SLAVE;
-source include/wait_for_slave_to_start.inc;
+--source include/restart_slave_sql.inc
 #
 SHOW VARIABLES LIKE 'init_slave';
 # expect NULL
diff --git a/mysql-test/t/blackhole.test b/mysql-test/t/blackhole.test
index 7f394e0f846..c80ceffef4c 100644
--- a/mysql-test/t/blackhole.test
+++ b/mysql-test/t/blackhole.test
@@ -38,3 +38,19 @@ SELECT 0 FROM t1 FORCE INDEX FOR GROUP BY(a) WHERE a = 0 OR b = 0 AND c = 0;
 DROP TABLE t1;
 
 --echo End of 5.6 tests
+
+#
+# MDEV-24017 / bug 53588 test case.
+#
+# Create long enough index (between 1000 and 3500). 1000 is the old value,
+# 3500 is innodb value (see ha_innobase::max_supported_key_length()). Without
+# the fix the test will fail with "Specified key was too long" error.
+#
+CREATE TABLE `t` (
+  `a` varchar(3000) NOT NULL default '',
+  PRIMARY KEY  (`a`)
+) ENGINE=BLACKHOLE;
+
+DROP TABLE `t`;
+
+--echo End of 10.1 tests
diff --git a/mysql-test/t/bootstrap_innodb.test b/mysql-test/t/bootstrap_innodb.test
new file mode 100644
index 00000000000..ddaefb32155
--- /dev/null
+++ b/mysql-test/t/bootstrap_innodb.test
@@ -0,0 +1,27 @@
+source include/have_static_innodb.inc;
+source include/not_embedded.inc;
+
+let $datadir= `select @@datadir`;
+
+create table t1(a int) engine=innodb;
+source include/shutdown_mysqld.inc;
+
+write_file $MYSQLTEST_VARDIR/tmp/bootstrap_test.sql;
+use test;
+insert t1 values (1);
+start transaction;
+insert t1 values (2);
+savepoint s1;
+insert t1 values (3);
+savepoint s2;
+insert t1 values (4);
+rollback to savepoint s1;
+insert t1 values (5);
+commit;
+EOF
+exec $MYSQLD_BOOTSTRAP_CMD --datadir=$datadir --innodb < $MYSQLTEST_VARDIR/tmp/bootstrap_test.sql >> $MYSQLTEST_VARDIR/tmp/bootstrap.log 2>&1;
+remove_file $MYSQLTEST_VARDIR/tmp/bootstrap_test.sql;
+
+source include/start_mysqld.inc;
+select * from t1;
+drop table t1;
diff --git a/mysql-test/t/lock_view.test b/mysql-test/t/lock_view.test
new file mode 100644
index 00000000000..dd8809ab89d
--- /dev/null
+++ b/mysql-test/t/lock_view.test
@@ -0,0 +1,76 @@
+source include/not_embedded.inc;
+#
+# LOCK TABLES and privileges on views
+#
+create database mysqltest1;
+create database mysqltest2;
+create database mysqltest3;
+create user invoker@localhost;
+create user definer@localhost;
+grant select,show view on mysqltest1.* to invoker@localhost;
+grant select,show view on mysqltest1.* to definer@localhost;
+grant select,show view on mysqltest2.* to invoker@localhost;
+grant select,show view on mysqltest2.* to definer@localhost;
+grant select,show view on mysqltest3.* to invoker@localhost;
+grant select on performance_schema.* to definer@localhost;
+create table mysqltest1.t1 (a int);
+create definer=definer@localhost view mysqltest2.v2 as select * from mysqltest1.t1;
+create definer=definer@localhost view mysqltest3.v3 as select * from mysqltest2.v2;
+create definer=definer@localhost view mysqltest3.v3is as select schema_name from information_schema.schemata order by schema_name;
+create definer=definer@localhost view mysqltest3.v3ps as select user from performance_schema.users where current_connections>0 order by user;
+create definer=definer@localhost view mysqltest3.v3nt as select 1;
+create definer=definer@localhost sql security invoker view mysqltest3.v3i as select * from mysqltest1.t1;
+
+exec $MYSQL_DUMP --compact -B mysqltest1 mysqltest2 mysqltest3;
+
+connect inv,localhost,invoker;
+error ER_DBACCESS_DENIED_ERROR;
+lock table mysqltest3.v3 write;
+disconnect inv;
+connection default;
+
+grant lock tables on mysqltest3.* to invoker@localhost;
+connect inv,localhost,invoker;
+show create view mysqltest3.v3;
+show create view mysqltest3.v3is;
+show create view mysqltest3.v3ps;
+show create view mysqltest3.v3nt;
+show create view mysqltest3.v3i;
+error ER_VIEW_INVALID;
+lock table mysqltest3.v3 write;
+error ER_VIEW_INVALID;
+lock table mysqltest3.v3i write;
+lock table mysqltest3.v3is write; select * from mysqltest3.v3is;
+lock table mysqltest3.v3ps write; select * from mysqltest3.v3ps;
+lock table mysqltest3.v3nt write; select * from mysqltest3.v3nt;
+disconnect inv;
+connection default;
+
+grant lock tables on mysqltest2.* to invoker@localhost;
+connect inv,localhost,invoker;
+error ER_VIEW_INVALID;
+lock table mysqltest3.v3 write;
+error ER_VIEW_INVALID;
+lock table mysqltest3.v3i write;
+disconnect inv;
+connection default;
+
+grant lock tables on mysqltest1.* to definer@localhost;
+connect inv,localhost,invoker;
+lock table mysqltest3.v3 write; select * from mysqltest3.v3;
+error ER_VIEW_INVALID;
+lock table mysqltest3.v3i write;
+disconnect inv;
+connection default;
+
+grant lock tables on mysqltest1.* to invoker@localhost;
+connect inv,localhost,invoker;
+lock table mysqltest3.v3i write; select * from mysqltest3.v3i;
+disconnect inv;
+connection default;
+
+drop user invoker@localhost;
+drop user definer@localhost;
+drop database mysqltest1;
+drop database mysqltest2;
+drop database mysqltest3;
diff --git a/mysql-test/t/plugin_innodb.test b/mysql-test/t/plugin_innodb.test
index fb5dd84b997..03afa190400 100644
--- a/mysql-test/t/plugin_innodb.test
+++ b/mysql-test/t/plugin_innodb.test
@@ -1,13 +1,6 @@
 --source include/not_embedded.inc
 --source include/have_example_plugin.inc
---source include/have_innodb.inc
-
-if (!`select count(*) from information_schema.plugins
-         where plugin_name = 'innodb' and plugin_status = 'active' and
-              plugin_library is null`) {
-  skip Need compiled-in InnoDB;
-}
-
+--source include/have_static_innodb.inc
 
 --replace_regex /\.dll/.so/
 eval install plugin example soname '$HA_EXAMPLE_SO';
diff --git a/mysql-test/t/processlist_notembedded.test b/mysql-test/t/processlist_notembedded.test
index 6f269a816fc..26021040c39 100644
--- a/mysql-test/t/processlist_notembedded.test
+++ b/mysql-test/t/processlist_notembedded.test
@@ -40,3 +40,21 @@ SET DEBUG_SYNC = 'RESET';
 source include/wait_until_count_sessions.inc;
 
 --echo End of 5.5 tests
+
+--echo #
+--echo # MDEV-23752: SHOW EXPLAIN FOR thd waits for sleep
+--echo #
+
+--connect (con1,localhost,root,,)
+--let $con_id = `SELECT CONNECTION_ID()`
+--send select sleep(100000);
+
+--connection default
+
+--replace_result $con_id con_id
+eval SHOW EXPLAIN FOR $con_id;
+
+--replace_result $con_id con_id
+eval KILL QUERY $con_id;
+
+--echo # End of 10.2 tests
diff --git a/mysys/my_addr_resolve.c b/mysys/my_addr_resolve.c
index 3f20f535d37..3a49c749010 100644
--- a/mysys/my_addr_resolve.c
+++ b/mysys/my_addr_resolve.c
@@ -159,10 +159,18 @@ err:
 #include <ctype.h>
 #include <sys/wait.h>
 
+#if defined(HAVE_POLL_H)
+#include <poll.h>
+#elif defined(HAVE_SYS_POLL_H)
+#include <sys/poll.h>
+#endif /* defined(HAVE_POLL_H) */
+
 static int in[2], out[2];
 static pid_t pid;
 static char addr2line_binary[1024];
 static char output[1024];
+static struct pollfd poll_fds;
+Dl_info info;
 
 int start_addr2line_fork(const char *binary_path)
 {
@@ -212,15 +220,16 @@ int my_addr_resolve(void *ptr, my_addr_loc *loc)
   ssize_t extra_bytes_read = 0;
   ssize_t parsed = 0;
 
-  fd_set set;
-  struct timeval timeout;
+  int ret;
 
   int filename_start = -1;
   int line_number_start = -1;
 
-  Dl_info info;
   void *offset;
 
+  poll_fds.fd = out[0];
+  poll_fds.events = POLLIN | POLLRDBAND;
+
   if (!dladdr(ptr, &info))
     return 1;
 
@@ -242,16 +251,16 @@ int my_addr_resolve(void *ptr, my_addr_loc *loc)
   if (write(in[1], input, len) <= 0)
     return 3;
 
-  FD_ZERO(&set);
-  FD_SET(out[0], &set);
 
-  /* 100 ms should be plenty of time for addr2line to issue a response. */
-  timeout.tv_sec = 0;
-  timeout.tv_usec = 100000;
+  /* 500 ms should be plenty of time for addr2line to issue a response. */
   /* Read in a loop till all the output from addr2line is complete. */
   while (parsed == total_bytes_read &&
-         select(out[0] + 1, &set, NULL, NULL, &timeout) > 0)
+         (ret= poll(&poll_fds, 1, 500)))
   {
+    /* error during poll */
+    if (ret < 0)
+      return 1;
+
     extra_bytes_read= read(out[0], output + total_bytes_read,
                            sizeof(output) - total_bytes_read);
     if (extra_bytes_read < 0)
diff --git a/sql/item_func.cc b/sql/item_func.cc
index cc4a0157d1a..9d3ff804406 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -4055,6 +4055,8 @@ int Interruptible_wait::wait(mysql_cond_t *cond, mysql_mutex_t *mutex)
       timeout= m_abs_timeout;
 
     error= mysql_cond_timedwait(cond, mutex, &timeout);
+    if (m_thd->check_killed())
+      break;
     if (error == ETIMEDOUT || error == ETIME)
     {
       /* Return error if timed out or connection is broken. */
diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc
index 5dddbf0360d..83100e743ad 100644
--- a/sql/sql_parse.cc
+++ b/sql/sql_parse.cc
@@ -104,6 +104,8 @@
 
 #include "my_json_writer.h" 
 
+#define PRIV_LOCK_TABLES (SELECT_ACL | LOCK_TABLES_ACL)
+
 #define FLAGSTR(V,F) ((V)&(F)?#F" ":"")
 
 #ifdef WITH_ARIA_STORAGE_ENGINE
@@ -1056,7 +1058,6 @@ static void handle_bootstrap_impl(THD *thd)
 
     thd->reset_kill_query();  /* Ensure that killed_errmsg is released */
     free_root(thd->mem_root,MYF(MY_KEEP_PREALLOC));
-    free_root(&thd->transaction.mem_root,MYF(MY_KEEP_PREALLOC));
     thd->lex->restore_set_statement_var();
   }
 
@@ -2880,6 +2881,36 @@ retry:
           goto err;
       }
     }
+    /*
+       Check privileges of view tables here, after views were opened.
+       Either definer or invoker has to have PRIV_LOCK_TABLES to be able
+       to lock view and its tables. For mysqldump (that locks views
+       before dumping their structures) compatibility we allow locking
+       views that select from I_S or P_S tables, but downrade the lock
+       to TL_READ
+     */
+    if (table->belong_to_view &&
+        check_single_table_access(thd, PRIV_LOCK_TABLES, table, 1))
+    {
+      if (table->grant.m_internal.m_schema_access)
+        table->lock_type= TL_READ;
+      else
+      {
+        bool error= true;
+        if (Security_context *sctx= table->security_ctx)
+        {
+          table->security_ctx= 0;
+          error= check_single_table_access(thd, PRIV_LOCK_TABLES, table, 1);
+          table->security_ctx= sctx;
+        }
+        if (error)
+        {
+          my_error(ER_VIEW_INVALID, MYF(0), table->belong_to_view->view_db.str,
+                   table->belong_to_view->view_name.str);
+          goto err;
+        }
+      }
+    }
   }
 
   if (lock_tables(thd, tables, counter, 0) ||
@@ -5084,7 +5115,7 @@ mysql_execute_command(THD *thd)
     if (first_table && lex->type & (REFRESH_READ_LOCK|REFRESH_FOR_EXPORT))
     {
       /* Check table-level privileges. */
-      if (check_table_access(thd, LOCK_TABLES_ACL | SELECT_ACL, all_tables,
+      if (check_table_access(thd, PRIV_LOCK_TABLES, all_tables,
                              FALSE, UINT_MAX, FALSE))
         goto error;
 
@@ -6597,7 +6628,7 @@ check_access(THD *thd, ulong want_access, const char *db, ulong *save_priv,
 
   @param thd                    Thread handler
   @param privilege              requested privilege
-  @param all_tables             global table list of query
+  @param tables                 global table list of query
   @param no_errors              FALSE/TRUE - report/don't report error to
                             the client (using my_error() call).
 
@@ -6607,28 +6638,25 @@ check_access(THD *thd, ulong want_access, const char *db, ulong *save_priv,
     1   access denied, error is sent to client
 */
 
-bool check_single_table_access(THD *thd, ulong privilege, 
-                               TABLE_LIST *all_tables, bool no_errors)
+bool check_single_table_access(THD *thd, ulong privilege, TABLE_LIST *tables,
+                               bool no_errors)
 {
-  Switch_to_definer_security_ctx backup_sctx(thd, all_tables);
+  Switch_to_definer_security_ctx backup_sctx(thd, tables);
 
   const char *db_name;
-  if ((all_tables->view || all_tables->field_translation) &&
-      !all_tables->schema_table)
-    db_name= all_tables->view_db.str;
+  if ((tables->view || tables->field_translation) && !tables->schema_table)
+    db_name= tables->view_db.str;
   else
-    db_name= all_tables->db;
+    db_name= tables->db;
 
-  if (check_access(thd, privilege, db_name,
-                   &all_tables->grant.privilege,
-                   &all_tables->grant.m_internal,
-                   0, no_errors))
+  if (check_access(thd, privilege, db_name, &tables->grant.privilege,
+                   &tables->grant.m_internal, 0, no_errors))
     return 1;
 
   /* Show only 1 table for check_grant */
-  if (!(all_tables->belong_to_view &&
-        (thd->lex->sql_command == SQLCOM_SHOW_FIELDS)) &&
-      check_grant(thd, privilege, all_tables, FALSE, 1, no_errors))
+  if (!(tables->belong_to_view &&
+       (thd->lex->sql_command == SQLCOM_SHOW_FIELDS)) &&
+      check_grant(thd, privilege, tables, FALSE, 1, no_errors))
     return 1;
 
   return 0;
@@ -9640,7 +9668,7 @@ static bool lock_tables_precheck(THD *thd, TABLE_LIST *tables)
     if (is_temporary_table(table))
       continue;
 
-    if (check_table_access(thd, LOCK_TABLES_ACL | SELECT_ACL, table,
+    if (check_table_access(thd, PRIV_LOCK_TABLES, table,
                            FALSE, 1, FALSE))
       return TRUE;
   }
diff --git a/sql/sys_vars.ic b/sql/sys_vars.ic
index f547bd741fc..3c3cfb8c8a6 100644
--- a/sql/sys_vars.ic
+++ b/sql/sys_vars.ic
@@ -731,7 +731,11 @@ public:
   { DBUG_ASSERT(FALSE); }
 
   void global_save_default(THD *thd, set_var *var)
-  { DBUG_ASSERT(FALSE); }
+  {
+    char *ptr= (char*)(intptr)option.def_value;
+    var->save_result.string_value.str= ptr;
+    var->save_result.string_value.length= ptr ? strlen(ptr) : 0;
+  }
 
   bool session_update(THD *thd, set_var *var)
   {
diff --git a/storage/blackhole/ha_blackhole.h b/storage/blackhole/ha_blackhole.h
index e34386ddf33..07275b8eec1 100644
--- a/storage/blackhole/ha_blackhole.h
+++ b/storage/blackhole/ha_blackhole.h
@@ -20,6 +20,7 @@
 #include "thr_lock.h"                           /* THR_LOCK */
 #include "handler.h"                            /* handler */
 #include "table.h"                              /* TABLE_SHARE */
+#include "sql_const.h"                          /* MAX_KEY */
 
 /*
   Shared structure for correct LOCK operation
@@ -65,9 +66,9 @@ public:
             HA_READ_ORDER | HA_KEYREAD_ONLY);
   }
   /* The following defines can be increased if necessary */
-#define BLACKHOLE_MAX_KEY	64		/* Max allowed keys */
+#define BLACKHOLE_MAX_KEY	MAX_KEY		/* Max allowed keys */
 #define BLACKHOLE_MAX_KEY_SEG	16		/* Max segments for key */
-#define BLACKHOLE_MAX_KEY_LENGTH 1000
+#define BLACKHOLE_MAX_KEY_LENGTH	3500		/* Like in InnoDB */
   uint max_supported_keys()          const { return BLACKHOLE_MAX_KEY; }
   uint max_supported_key_length()    const { return BLACKHOLE_MAX_KEY_LENGTH; }
   uint max_supported_key_part_length() const { return BLACKHOLE_MAX_KEY_LENGTH; }
diff --git a/storage/connect/ha_connect.cc b/storage/connect/ha_connect.cc
index 738e3d671a0..2920d86716d 100644
--- a/storage/connect/ha_connect.cc
+++ b/storage/connect/ha_connect.cc
@@ -4538,14 +4538,13 @@ bool ha_connect::check_privileges(THD *thd, PTOS options, char *dbn, bool quick)
 		case TAB_DIR:
 		case TAB_ZIP:
 		case TAB_OEM:
-      if (table && table->pos_in_table_list) // if SELECT
-      {
+      if (table && table->pos_in_table_list) {		// if SELECT
 #if MYSQL_VERSION_ID > 100200
 				Switch_to_definer_security_ctx backup_ctx(thd, table->pos_in_table_list);
 #endif // VERSION_ID > 100200
+
         return check_global_access(thd, FILE_ACL);
-      }
-      else
+      }	else
         return check_global_access(thd, FILE_ACL);
     case TAB_ODBC:
 		case TAB_JDBC:
@@ -4561,7 +4560,7 @@ bool ha_connect::check_privileges(THD *thd, PTOS options, char *dbn, bool quick)
     case TAB_VIR:
 			// This is temporary until a solution is found
 			return false;
-    } // endswitch type
+  } // endswitch type
 
   my_printf_error(ER_UNKNOWN_ERROR, "check_privileges failed", MYF(0));
   return true;