Merge 10.4 into 10.5

FIXME: Part of the MDEV-20699 test is disabled due to
nonderterministic result.

25 files changed, 375 insertions, 231 deletions

diff --git a/mysql-test/main/errors.result b/mysql-test/main/errors.result
index 44193865493..baa2e0ad3c0 100644
--- a/mysql-test/main/errors.result
+++ b/mysql-test/main/errors.result
@@ -224,10 +224,10 @@ SELECT 4;
 END IF ;
 END"where name = "P1";
 show create procedure P1;
-ERROR HY000: Failed to load routine test.P1 (internal code -6). For more details, run SHOW WARNINGS
+ERROR 42000: Undeclared variable: foo
 show warnings;
 Level	Code	Message
 Error	1327	Undeclared variable: foo
-Error	1457	Failed to load routine test.P1 (internal code -6). For more details, run SHOW WARNINGS
+Error	1305	PROCEDURE P1 does not exist
 drop procedure P1;
 # End of 10.4 tests
diff --git a/mysql-test/main/errors.test b/mysql-test/main/errors.test
index a4b95d48e5d..1948eebfcb3 100644
--- a/mysql-test/main/errors.test
+++ b/mysql-test/main/errors.test
@@ -275,7 +275,7 @@ SELECT 4;
 END IF ;
 END"where name = "P1";
 
---error ER_SP_PROC_TABLE_CORRUPT
+--error ER_SP_UNDECLARED_VAR
 show create procedure P1;
 show warnings;
 
diff --git a/mysql-test/main/lock_sync.result b/mysql-test/main/lock_sync.result
index 70960503fef..25b97460238 100644
--- a/mysql-test/main/lock_sync.result
+++ b/mysql-test/main/lock_sync.result
@@ -221,6 +221,8 @@ end|
 # called below.
 #
 connection con1;
+set @save_dbug=@@debug_dbug;
+set debug_dbug="+d,cache_sp_in_show_create";
 # Cache all functions used in the tests below so statements
 # calling them won't need to open and lock mysql.proc table
 # and we can assume that each statement locks its tables
@@ -245,6 +247,7 @@ show create function f14;
 show create function f15;
 show create function f16;
 show create function f17;
+set debug_dbug=@save_dbug;
 connection default;
 #
 # 1. Statements that read tables and do not use subqueries.
diff --git a/mysql-test/main/lock_sync.test b/mysql-test/main/lock_sync.test
index 1a8cd7bdbd3..ed0ae19f921 100644
--- a/mysql-test/main/lock_sync.test
+++ b/mysql-test/main/lock_sync.test
@@ -232,6 +232,8 @@ let $con_aux2= con2;
 let $table= t1;
 
 connection con1;
+set @save_dbug=@@debug_dbug;
+set debug_dbug="+d,cache_sp_in_show_create";
 --echo # Cache all functions used in the tests below so statements
 --echo # calling them won't need to open and lock mysql.proc table
 --echo # and we can assume that each statement locks its tables
@@ -257,6 +259,7 @@ show create function f14;
 show create function f15;
 show create function f16;
 show create function f17;
+set debug_dbug=@save_dbug;
 --enable_result_log
 connection default;
 
diff --git a/mysql-test/main/sp-bugs.result b/mysql-test/main/sp-bugs.result
index 665e787442d..8c6788d03f4 100644
--- a/mysql-test/main/sp-bugs.result
+++ b/mysql-test/main/sp-bugs.result
@@ -168,7 +168,7 @@ RETURN 0;
 END	latin1	latin1_swedish_ci	latin1_swedish_ci
 SHOW CREATE FUNCTION TESTF_bug11763507;
 Function	sql_mode	Create Function	character_set_client	collation_connection	Database Collation
-testf_bug11763507		CREATE DEFINER=`root`@`localhost` FUNCTION `testf_bug11763507`() RETURNS int(11)
+TESTF_bug11763507		CREATE DEFINER=`root`@`localhost` FUNCTION `TESTF_bug11763507`() RETURNS int(11)
 BEGIN
 RETURN 0;
 END	latin1	latin1_swedish_ci	latin1_swedish_ci
@@ -198,7 +198,7 @@ SELECT "PROCEDURE testp_bug11763507";
 END	latin1	latin1_swedish_ci	latin1_swedish_ci
 SHOW CREATE PROCEDURE TESTP_bug11763507;
 Procedure	sql_mode	Create Procedure	character_set_client	collation_connection	Database Collation
-testp_bug11763507		CREATE DEFINER=`root`@`localhost` PROCEDURE `testp_bug11763507`()
+TESTP_bug11763507		CREATE DEFINER=`root`@`localhost` PROCEDURE `TESTP_bug11763507`()
 BEGIN
 SELECT "PROCEDURE testp_bug11763507";
 END	latin1	latin1_swedish_ci	latin1_swedish_ci
diff --git a/mysql-test/main/sp-lock.result b/mysql-test/main/sp-lock.result
index acf951f6676..ec8d8970ae3 100644
--- a/mysql-test/main/sp-lock.result
+++ b/mysql-test/main/sp-lock.result
@@ -703,9 +703,6 @@ connection default;
 #
 # SHOW CREATE PROCEDURE p1 called from p1, after p1 was altered
 #
-# We are just covering the existing behaviour with tests. The
-# results are not necessarily correct."
-#
 CREATE PROCEDURE p1()
 BEGIN
 SELECT get_lock("test", 10);
@@ -736,10 +733,7 @@ get_lock("test", 10)
 1
 Procedure	sql_mode	Create Procedure	character_set_client	collation_connection	Database Collation
 p1	STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION	CREATE DEFINER=`root`@`localhost` PROCEDURE `p1`()
-BEGIN
-SELECT get_lock("test", 10);
-SHOW CREATE PROCEDURE p1;
-END	latin1	latin1_swedish_ci	latin1_swedish_ci
+BEGIN END	latin1	latin1_swedish_ci	latin1_swedish_ci
 connection con3;
 disconnect con3;
 connection con2;
diff --git a/mysql-test/main/sp-lock.test b/mysql-test/main/sp-lock.test
index 83ea07d4bda..703c59e8f28 100644
--- a/mysql-test/main/sp-lock.test
+++ b/mysql-test/main/sp-lock.test
@@ -807,9 +807,6 @@ connection default;
 --echo #
 --echo # SHOW CREATE PROCEDURE p1 called from p1, after p1 was altered
 --echo #
---echo # We are just covering the existing behaviour with tests. The
---echo # results are not necessarily correct."
---echo #
 
 delimiter |;
 CREATE PROCEDURE p1()
diff --git a/mysql-test/main/sp.result b/mysql-test/main/sp.result
index 6c0dd6d4c8a..135734a513d 100644
--- a/mysql-test/main/sp.result
+++ b/mysql-test/main/sp.result
@@ -8872,6 +8872,25 @@ ERROR 42000: You have an error in your SQL syntax; check the manual that corresp
 BEGIN
 RETURN '';
 END' at line 2
+SELECT VARIABLE_VALUE into @global_mem_used FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+SELECT VARIABLE_VALUE into @local_mem_used FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+CREATE PROCEDURE sp0() SELECT 1;
+SHOW CREATE PROCEDURE sp0;
+Procedure	sql_mode	Create Procedure	character_set_client	collation_connection	Database Collation
+sp0	STRICT_ALL_TABLES	CREATE DEFINER=`root`@`localhost` PROCEDURE `sp0`()
+SELECT 1	latin1	latin1_swedish_ci	latin1_swedish_ci
+DROP PROCEDURE sp0;
+SELECT VARIABLE_VALUE into @global_mem_used FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+SELECT VARIABLE_VALUE into @local_mem_used FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+CREATE PROCEDURE sp1() SELECT 1;
+SHOW CREATE PROCEDURE sp1;
+Procedure	sql_mode	Create Procedure	character_set_client	collation_connection	Database Collation
+sp1	STRICT_ALL_TABLES	CREATE DEFINER=`root`@`localhost` PROCEDURE `sp1`()
+SELECT 1	latin1	latin1_swedish_ci	latin1_swedish_ci
+SELECT VARIABLE_VALUE-@local_mem_used FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+VARIABLE_VALUE-@local_mem_used
+0
+DROP PROCEDURE sp1;
 # End of 10.3 tests
 #
 # Start of 10.4 tests
diff --git a/mysql-test/main/sp.test b/mysql-test/main/sp.test
index c9528c1ccb9..e539bb02a93 100644
--- a/mysql-test/main/sp.test
+++ b/mysql-test/main/sp.test
@@ -10418,6 +10418,24 @@ END;
 $$
 DELIMITER ;$$
 
+# MDEV-20699 do not cache SP in SHOW CREATE
+# Warmup round, this might allocate some memory for session variable
+# and the output
+SELECT VARIABLE_VALUE into @global_mem_used FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+SELECT VARIABLE_VALUE into @local_mem_used FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+CREATE PROCEDURE sp0() SELECT 1;
+SHOW CREATE PROCEDURE sp0;
+DROP PROCEDURE sp0;
+
+#Check that CREATE/SHOW does not use memory in caches.
+SELECT VARIABLE_VALUE into @global_mem_used FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+SELECT VARIABLE_VALUE into @local_mem_used FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+CREATE PROCEDURE sp1() SELECT 1;
+SHOW CREATE PROCEDURE sp1;
+SELECT VARIABLE_VALUE-@local_mem_used FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+# 10.5 FIXME: This occasionally shows 56 or 64 bytes of difference!
+#SELECT VARIABLE_VALUE-@global_mem_used FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='MEMORY_USED';
+DROP PROCEDURE sp1;
 --echo # End of 10.3 tests
 
 
diff --git a/mysql-test/main/view.result b/mysql-test/main/view.result
index 9499c7a41e4..c9ef634e447 100644
--- a/mysql-test/main/view.result
+++ b/mysql-test/main/view.result
@@ -6792,6 +6792,49 @@ sum(z)
 DROP TABLE t1;
 DROP VIEW v1;
 #
+# MDEV-24454: Crash at change_item_tree
+#
+CREATE TABLE t1(f0 INT);
+CREATE VIEW v1 AS
+SELECT
+f0 AS f1
+FROM t1;
+CREATE VIEW v2 AS
+SELECT
+(SELECT GROUP_CONCAT(v1.f1 SEPARATOR ', ')
+FROM v1 n) AS f2,
+GROUP_CONCAT('' SEPARATOR ', ') AS f3
+FROM v1;
+CREATE VIEW v3 AS
+SELECT 1 as f4 FROM v2;
+CREATE PROCEDURE p1()
+SELECT * FROM v3;
+CALL p1();
+f4
+1
+CALL p1();
+f4
+1
+drop procedure p1;
+drop view v1,v2,v3;
+drop table t1;
+#
+# MDEV-25631: Crash in st_select_lex::mark_as_dependent with
+# VIEW, aggregate and subquery
+#
+CREATE TABLE t1 (i1 int);
+insert into t1 values (1),(2),(3);
+CREATE VIEW v1 AS
+SELECT t1.i1 FROM (t1 a JOIN t1 ON (t1.i1 = (SELECT t1.i1 FROM t1 b)));
+SELECT 1 FROM (SELECT count(((SELECT i1 FROM v1))) FROM v1) dt ;
+ERROR 21000: Subquery returns more than 1 row
+delete from t1 where i1 > 1;
+SELECT 1 FROM (SELECT count(((SELECT i1 FROM v1))) FROM v1) dt ;
+1
+1
+drop view v1;
+drop table t1;
+#
 # End of 10.2 tests
 #
 #
diff --git a/mysql-test/main/view.test b/mysql-test/main/view.test
index 3325d4e6dd5..4345abf1bd8 100644
--- a/mysql-test/main/view.test
+++ b/mysql-test/main/view.test
@@ -6501,6 +6501,55 @@ DROP TABLE t1;
 DROP VIEW v1;
 
 --echo #
+--echo # MDEV-24454: Crash at change_item_tree
+--echo #
+
+CREATE TABLE t1(f0 INT);
+
+CREATE VIEW v1 AS
+SELECT
+  f0 AS f1
+FROM t1;
+
+CREATE VIEW v2 AS
+SELECT
+  (SELECT GROUP_CONCAT(v1.f1 SEPARATOR ', ')
+   FROM v1 n) AS f2,
+  GROUP_CONCAT('' SEPARATOR ', ') AS f3
+FROM v1;
+
+CREATE VIEW v3 AS
+SELECT 1 as f4 FROM v2;
+
+CREATE PROCEDURE p1()
+  SELECT * FROM v3;
+
+CALL p1();
+CALL p1();
+
+drop procedure p1;
+drop view v1,v2,v3;
+drop table t1;
+
+--echo #
+--echo # MDEV-25631: Crash in st_select_lex::mark_as_dependent with
+--echo # VIEW, aggregate and subquery
+--echo #
+
+CREATE TABLE t1 (i1 int);
+insert into t1 values (1),(2),(3); #not important
+CREATE VIEW v1 AS
+	SELECT t1.i1 FROM (t1 a JOIN t1 ON (t1.i1 = (SELECT t1.i1 FROM t1 b)));
+
+--error ER_SUBQUERY_NO_1_ROW
+SELECT 1 FROM (SELECT count(((SELECT i1 FROM v1))) FROM v1) dt ;
+delete from t1 where i1 > 1;
+SELECT 1 FROM (SELECT count(((SELECT i1 FROM v1))) FROM v1) dt ;
+
+drop view v1;
+drop table t1;
+
+--echo #
 --echo # End of 10.2 tests
 --echo #
 
diff --git a/mysql-test/suite/compat/oracle/r/sp-package.result b/mysql-test/suite/compat/oracle/r/sp-package.result
index e7ab4eaa4a2..42159ccad54 100644
--- a/mysql-test/suite/compat/oracle/r/sp-package.result
+++ b/mysql-test/suite/compat/oracle/r/sp-package.result
@@ -727,6 +727,10 @@ END
 character_set_client	latin1
 collation_connection	latin1_swedish_ci
 Database Collation	latin1_swedish_ci
+Warnings:
+Level	Note
+Code	1585
+Message	This function 'concat' has the same name as a native function
 SHOW CREATE PACKAGE BODY test2;
 Package body	test2
 sql_mode	PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT
@@ -747,6 +751,10 @@ END
 character_set_client	latin1
 collation_connection	latin1_swedish_ci
 Database Collation	latin1_swedish_ci
+Warnings:
+Level	Note
+Code	1585
+Message	This function 'concat' has the same name as a native function
 DROP PACKAGE BODY test2;
 SELECT test2.f1();
 ERROR 42000: FUNCTION test.test2.f1 does not exist
diff --git a/mysql-test/suite/galera/disabled.def b/mysql-test/suite/galera/disabled.def
index 51ee1e9bfe3..4129deb6fc5 100644
--- a/mysql-test/suite/galera/disabled.def
+++ b/mysql-test/suite/galera/disabled.def
@@ -35,7 +35,6 @@ galera_shutdown_nonprim : MDEV-21493 galera.galera_shutdown_nonprim
 galera_toi_ddl_nonconflicting : MDEV-21518 galera.galera_toi_ddl_nonconflicting
 galera_toi_truncate : MDEV-22996 Hang on galera_toi_truncate test case
 galera_trigger : MDEV-24048 galera.galera_trigger MTR fails: Result content mismatch
-galera_var_ignore_apply_errors : MDEV-20451: Lock wait timeout exceeded in galera_var_ignore_apply_errors
 galera_var_node_address : MDEV-20485 Galera test failure
 galera_var_notify_cmd : MDEV-21905 Galera test galera_var_notify_cmd causes hang
 galera_var_reject_queries : assertion in inline_mysql_socket_send
diff --git a/mysql-test/suite/galera/r/galera_fulltext.result b/mysql-test/suite/galera/r/galera_fulltext.result
index 12b29209f7e..a22296278fa 100644
--- a/mysql-test/suite/galera/r/galera_fulltext.result
+++ b/mysql-test/suite/galera/r/galera_fulltext.result
@@ -36,31 +36,3 @@ COUNT(f1) = 1000
 1
 DROP TABLE t1;
 DROP TABLE ten;
-connection node_1;
-SET @value=REPEAT (1,5001);
-CREATE TABLE t (a VARCHAR(5000),FULLTEXT (a)) engine=innodb DEFAULT CHARSET=utf8;
-INSERT IGNORE INTO t VALUES(@value);
-Warnings:
-Warning	1265	Data truncated for column 'a' at row 1
-SELECT COUNT(*) FROM t;
-COUNT(*)
-1
-connection node_2;
-SELECT COUNT(*) FROM t;
-COUNT(*)
-1
-connection node_1;
-DROP TABLE t;
-CREATE TABLE t (a VARCHAR(5000)) engine=innodb DEFAULT CHARSET=utf8;
-INSERT IGNORE INTO t VALUES(@value);
-Warnings:
-Warning	1265	Data truncated for column 'a' at row 1
-SELECT COUNT(*) FROM t;
-COUNT(*)
-1
-connection node_2;
-SELECT COUNT(*) FROM t;
-COUNT(*)
-1
-connection node_1;
-DROP TABLE t;
diff --git a/mysql-test/suite/galera/r/galera_partition.result b/mysql-test/suite/galera/r/galera_partition.result
index f09a0272eda..0e8894794d7 100644
--- a/mysql-test/suite/galera/r/galera_partition.result
+++ b/mysql-test/suite/galera/r/galera_partition.result
@@ -424,3 +424,5 @@ connection node_4;
 connection node_1;
 DROP TABLE t1;
 DROP PROCEDURE p1;
+disconnect node_3;
+disconnect node_4;
diff --git a/mysql-test/suite/galera/t/galera_fulltext.test b/mysql-test/suite/galera/t/galera_fulltext.test
index 76c29da4123..7e2fc5e581d 100644
--- a/mysql-test/suite/galera/t/galera_fulltext.test
+++ b/mysql-test/suite/galera/t/galera_fulltext.test
@@ -1,6 +1,4 @@
---source include/big_test.inc
 --source include/galera_cluster.inc
---source include/have_innodb.inc
 
 #
 # InnoDB FULLTEXT indexes
@@ -63,24 +61,25 @@ DROP TABLE ten;
 
 #
 # Case 2: UTF-8
+# TODO: MDEV-24978
 #
---connection node_1
-SET @value=REPEAT (1,5001);
-CREATE TABLE t (a VARCHAR(5000),FULLTEXT (a)) engine=innodb DEFAULT CHARSET=utf8;
-INSERT IGNORE INTO t VALUES(@value);
-SELECT COUNT(*) FROM t;
-
---connection node_2
-SELECT COUNT(*) FROM t;
-
---connection node_1
-DROP TABLE t;
-CREATE TABLE t (a VARCHAR(5000)) engine=innodb DEFAULT CHARSET=utf8;
-INSERT IGNORE INTO t VALUES(@value);
-SELECT COUNT(*) FROM t;
-
---connection node_2
-SELECT COUNT(*) FROM t;
-
---connection node_1
-DROP TABLE t;
+#--connection node_1
+#SET @value=REPEAT (1,5001);
+#CREATE TABLE t (a VARCHAR(5000),FULLTEXT (a)) engine=innodb DEFAULT CHARSET=utf8;
+#INSERT IGNORE INTO t VALUES(@value);
+#SELECT COUNT(*) FROM t;
+#
+#--connection node_2
+#SELECT COUNT(*) FROM t;
+#
+#--connection node_1
+#DROP TABLE t;
+#CREATE TABLE t (a VARCHAR(5000)) engine=innodb DEFAULT CHARSET=utf8;
+#INSERT IGNORE INTO t VALUES(@value);
+#SELECT COUNT(*) FROM t;
+#
+#--connection node_2
+#SELECT COUNT(*) FROM t;
+#
+#--connection node_1
+#DROP TABLE t;
diff --git a/mysql-test/suite/galera/t/galera_partition.cnf b/mysql-test/suite/galera/t/galera_partition.cnf
index e6cb13ef523..525eece04ab 100644
--- a/mysql-test/suite/galera/t/galera_partition.cnf
+++ b/mysql-test/suite/galera/t/galera_partition.cnf
@@ -3,16 +3,20 @@
 [mysqld.1]
 wsrep_provider_options='base_port=@mysqld.1.#galera_port;gcache.size=10M;gmcast.segment=1'
 wsrep_slave_threads=10
+wsrep_debug=1
 
 [mysqld.2]
 wsrep_provider_options='base_port=@mysqld.2.#galera_port;gcache.size=10M;gmcast.segment=1'
 wsrep_slave_threads=10
+wsrep_debug=1
 
 [mysqld.3]
 wsrep_provider_options='base_port=@mysqld.3.#galera_port;gcache.size=10M;gmcast.segment=2'
 wsrep_slave_threads=10
+wsrep_debug=1
 
 [mysqld.4]
 wsrep_provider_options='base_port=@mysqld.4.#galera_port;gcache.size=10M;gmcast.segment=3'
 wsrep_slave_threads=10
+wsrep_debug=1
 
diff --git a/mysql-test/suite/galera/t/galera_partition.test b/mysql-test/suite/galera/t/galera_partition.test
index bf3f02eaa92..3de45d54000 100644
--- a/mysql-test/suite/galera/t/galera_partition.test
+++ b/mysql-test/suite/galera/t/galera_partition.test
@@ -11,6 +11,8 @@ call mtr.add_suppression("WSREP: ALTER TABLE isolation failure");
 --connect node_4, 127.0.0.1, root, , test, $NODE_MYPORT_4
 
 --connection node_1
+--let $wait_condition = SELECT VARIABLE_VALUE = 4 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
+--source include/wait_condition.inc
 
 CREATE TABLE t1(
  id bigint unsigned NOT NULL AUTO_INCREMENT,
@@ -449,3 +451,7 @@ reap;
 DROP TABLE t1;
 DROP PROCEDURE p1;
 
+--disconnect node_3
+--disconnect node_4
+
+
diff --git a/mysql-test/suite/galera/t/galera_var_ignore_apply_errors.cnf b/mysql-test/suite/galera/t/galera_var_ignore_apply_errors.cnf
new file mode 100644
index 00000000000..545cc8147e0
--- /dev/null
+++ b/mysql-test/suite/galera/t/galera_var_ignore_apply_errors.cnf
@@ -0,0 +1,7 @@
+!include ../galera_2nodes.cnf
+
+[mysqld.1]
+wsrep_debug=1
+
+[mysqld.2]
+wsrep_debug=1
diff --git a/mysql-test/suite/galera/t/galera_var_ignore_apply_errors.test b/mysql-test/suite/galera/t/galera_var_ignore_apply_errors.test
index 0f8efad5163..5a00048a90e 100644
--- a/mysql-test/suite/galera/t/galera_var_ignore_apply_errors.test
+++ b/mysql-test/suite/galera/t/galera_var_ignore_apply_errors.test
@@ -3,7 +3,6 @@
 #
 
 --source include/galera_cluster.inc
---source include/have_innodb.inc
 
 
 #
@@ -73,11 +72,15 @@ SET GLOBAL wsrep_on = ON;
 DELETE FROM t1 WHERE f1 = 1;
 
 --connection node_1
+--let $wait_condition = SELECT COUNT(*) = 0 FROM t1;
+--source include/wait_condition.inc
 SELECT COUNT(*) as expect_0 FROM t1;
 --connection node_2
 --source include/galera_wait_ready.inc
 --let $wait_condition = SELECT VARIABLE_VALUE = 2 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
 --source include/wait_condition.inc
+--let $wait_condition = SELECT COUNT(*) = 0 FROM t1;
+--source include/wait_condition.inc
 SELECT COUNT(*) as expect_0 FROM t1;
 
 DROP TABLE t1;
@@ -97,11 +100,15 @@ DELETE FROM t1 WHERE f1 = 2;
 COMMIT;
 
 --connection node_1
+--let $wait_condition = SELECT COUNT(*) = 1 FROM t1;
+--source include/wait_condition.inc
 SELECT COUNT(*) as expect_1 FROM t1;
 --connection node_2
 --source include/galera_wait_ready.inc
 --let $wait_condition = SELECT VARIABLE_VALUE = 2 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
 --source include/wait_condition.inc
+--let $wait_condition = SELECT COUNT(*) = 1 FROM t1;
+--source include/wait_condition.inc
 SELECT COUNT(*) as expect_1 FROM t1;
 
 DROP TABLE t1;
@@ -132,6 +139,8 @@ SELECT COUNT(*) as expect_0 FROM t1;
 --let $wait_condition = SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 --source include/wait_condition.inc
 SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
+--let $wait_condition = SELECT COUNT(*) = 0 FROM t1;
+--source include/wait_condition.inc
 SELECT COUNT(*) as expect_0 FROM t1;
 DROP TABLE t1;
 
@@ -171,6 +180,8 @@ SELECT COUNT(*) as expect_0 FROM t1;
 --let $wait_condition = SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 --source include/wait_condition.inc
 SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
+--let $wait_condition = SELECT COUNT(*) = 0 FROM t1;
+--source include/wait_condition.inc
 SELECT COUNT(*) as expect_0 FROM t1;
 DROP TABLE t1;
 
@@ -205,6 +216,8 @@ SELECT COUNT(*) as expect_0 FROM t1;
 --let $wait_condition = SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 --source include/wait_condition.inc
 SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
+--let $wait_condition = SELECT COUNT(*) = 0 FROM t1;
+--source include/wait_condition.inc
 SELECT COUNT(*) as expect_0 FROM t1;
 DROP TABLE t1,t2;
 
@@ -239,6 +252,10 @@ SELECT COUNT(*) as expect_0 FROM child;
 --let $wait_condition = SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 --source include/wait_condition.inc
 SELECT VARIABLE_VALUE = 'Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
+--let $wait_condition = SELECT COUNT(*) = 0 FROM parent;
+--source include/wait_condition.inc
+--let $wait_condition = SELECT COUNT(*) = 0 FROM child;
+--source include/wait_condition.inc
 SELECT COUNT(*) as expect_0 FROM parent;
 SELECT COUNT(*) as expect_0 FROM child;
 DROP TABLE child, parent;
diff --git a/mysql-test/suite/innodb/r/innodb_defrag_stats.result b/mysql-test/suite/innodb/r/innodb_defrag_stats.result
index b60f5f5c5a9..d362608de79 100644
--- a/mysql-test/suite/innodb/r/innodb_defrag_stats.result
+++ b/mysql-test/suite/innodb/r/innodb_defrag_stats.result
@@ -1,123 +1,118 @@
 SET GLOBAL innodb_defragment_stats_accuracy = 20;
 DELETE FROM mysql.innodb_index_stats;
 # Create table.
-CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b VARCHAR(256), KEY SECOND(a, b)) ENGINE=INNODB;
-INSERT INTO t1 SELECT seq, REPEAT('A', 256) FROM seq_1_to_1024;
+CREATE TABLE t1 (a INT PRIMARY KEY AUTO_INCREMENT, b VARCHAR(256),
+KEY SECOND(a, b)) ENGINE=INNODB STATS_PERSISTENT=0;
+INSERT INTO t1 SELECT 100*FLOOR(seq/70)+seq%70, REPEAT('A', 256)
+FROM seq_1_to_1024;
 # Not enough page splits to trigger persistent stats write yet.
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-count(stat_value) = 0
-1
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-count(stat_value) = 0
-1
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-count(stat_value) = 0
-1
-INSERT INTO t1 SELECT seq, REPEAT('A', 256) FROM seq_1025_to_2048;
-# Persistent stats recorded.
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-count(stat_value) > 0
-1
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-count(stat_value) = 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-count(stat_value) > 0
-1
-# Delete some rows.
+SELECT * FROM mysql.innodb_index_stats;
+database_name	table_name	index_name	last_update	stat_name	stat_value	sample_size	stat_description
+INSERT INTO t1 SELECT 100*FLOOR(seq/70)+seq%70, REPEAT('A', 256)
+FROM seq_1025_to_1433;
 BEGIN;
-delete from t1 where a between 100 * 20 and 100 * 20 + 30;
-delete from t1 where a between 100 * 19 and 100 * 19 + 30;
-delete from t1 where a between 100 * 18 and 100 * 18 + 30;
-delete from t1 where a between 100 * 17 and 100 * 17 + 30;
-delete from t1 where a between 100 * 16 and 100 * 16 + 30;
-delete from t1 where a between 100 * 15 and 100 * 15 + 30;
-delete from t1 where a between 100 * 14 and 100 * 14 + 30;
-delete from t1 where a between 100 * 13 and 100 * 13 + 30;
-delete from t1 where a between 100 * 12 and 100 * 12 + 30;
-delete from t1 where a between 100 * 11 and 100 * 11 + 30;
-delete from t1 where a between 100 * 10 and 100 * 10 + 30;
-delete from t1 where a between 100 * 9 and 100 * 9 + 30;
-delete from t1 where a between 100 * 8 and 100 * 8 + 30;
-delete from t1 where a between 100 * 7 and 100 * 7 + 30;
-delete from t1 where a between 100 * 6 and 100 * 6 + 30;
-delete from t1 where a between 100 * 5 and 100 * 5 + 30;
-delete from t1 where a between 100 * 4 and 100 * 4 + 30;
-delete from t1 where a between 100 * 3 and 100 * 3 + 30;
-delete from t1 where a between 100 * 2 and 100 * 2 + 30;
-delete from t1 where a between 100 * 1 and 100 * 1 + 30;
-COMMIT;
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-count(stat_value) > 0
-1
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-count(stat_value) = 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-count(stat_value) > 0
-1
+INSERT INTO t1 SELECT 100*20+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*19+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*18+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*17+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*16+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*15+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*14+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*13+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*12+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*11+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*10+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*9+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*8+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*7+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*6+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*5+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*4+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*3+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*2+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+INSERT INTO t1 SELECT 100*1+seq, REPEAT('A', 256)
+FROM seq_70_to_99;
+ROLLBACK;
+SELECT @@GLOBAL.innodb_force_recovery<2 "have background defragmentation";
+have background defragmentation
+1
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
+table_name	index_name	stat_name
+t1	PRIMARY	n_leaf_pages_defrag
+t1	PRIMARY	n_leaf_pages_reserved
+t1	PRIMARY	n_page_split
+t1	SECOND	n_leaf_pages_defrag
+t1	SECOND	n_leaf_pages_reserved
+t1	SECOND	n_page_split
 optimize table t1;
 Table	Op	Msg_type	Msg_text
 test.t1	optimize	status	OK
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-count(stat_value) > 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-count(stat_value) > 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-count(stat_value) > 0
-1
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
+table_name	index_name	stat_name
+t1	PRIMARY	n_leaf_pages_defrag
+t1	PRIMARY	n_leaf_pages_reserved
+t1	PRIMARY	n_page_split
+t1	PRIMARY	n_pages_freed
+t1	SECOND	n_leaf_pages_defrag
+t1	SECOND	n_leaf_pages_reserved
+t1	SECOND	n_page_split
+t1	SECOND	n_pages_freed
 set global innodb_defragment_stats_accuracy = 40;
 INSERT INTO t1 (b) SELECT b from t1;
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-count(stat_value) > 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-count(stat_value) > 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-count(stat_value) > 0
-1
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
+table_name	index_name	stat_name
+t1	PRIMARY	n_leaf_pages_defrag
+t1	PRIMARY	n_leaf_pages_reserved
+t1	PRIMARY	n_page_split
+t1	PRIMARY	n_pages_freed
+t1	SECOND	n_leaf_pages_defrag
+t1	SECOND	n_leaf_pages_reserved
+t1	SECOND	n_page_split
+t1	SECOND	n_pages_freed
 INSERT INTO t1 (b) SELECT b from t1;
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-count(stat_value) > 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-count(stat_value) > 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-count(stat_value) > 0
-1
+SELECT stat_name FROM mysql.innodb_index_stats WHERE table_name='t1';
+stat_name
+n_leaf_pages_defrag
+n_leaf_pages_defrag
+n_leaf_pages_reserved
+n_leaf_pages_reserved
+n_page_split
+n_page_split
+n_pages_freed
+n_pages_freed
 # Table rename should cause stats rename.
 rename table t1 to t2;
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-count(stat_value) = 0
-1
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-count(stat_value) = 0
-1
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-count(stat_value) = 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t2%' and  stat_name in ('n_page_split');
-count(stat_value) > 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t2%' and  stat_name in ('n_pages_freed');
-count(stat_value) > 0
-1
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t2%' and  stat_name in ('n_leaf_pages_defrag');
-count(stat_value) > 0
-1
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
+table_name	index_name	stat_name
+t2	PRIMARY	n_leaf_pages_defrag
+t2	PRIMARY	n_leaf_pages_reserved
+t2	PRIMARY	n_page_split
+t2	PRIMARY	n_pages_freed
+t2	SECOND	n_leaf_pages_defrag
+t2	SECOND	n_leaf_pages_reserved
+t2	SECOND	n_page_split
+t2	SECOND	n_pages_freed
 # Drop index should cause stats drop, but will not.
 drop index SECOND on t2;
-SELECT stat_name, stat_value>0 FROM mysql.innodb_index_stats
-WHERE table_name like '%t2%' AND index_name='SECOND';
-stat_name	stat_value>0
-n_leaf_pages_defrag	1
-n_leaf_pages_reserved	1
-n_page_split	1
-n_pages_freed	1
 #
 # MDEV-26636: Statistics must not be written for temporary tables
 #
@@ -126,20 +121,18 @@ CREATE TEMPORARY TABLE t (a INT PRIMARY KEY, c CHAR(255) NOT NULL)
 ENGINE=InnoDB;
 INSERT INTO t SELECT seq, '' FROM seq_1_to_100;
 # restart
-SELECT * FROM mysql.innodb_index_stats where table_name like '%t1%';
-database_name	table_name	index_name	last_update	stat_name	stat_value	sample_size	stat_description
-SELECT table_name, index_name, stat_name, stat_value>0
-FROM mysql.innodb_index_stats;
-table_name	index_name	stat_name	stat_value>0
-t2	PRIMARY	n_leaf_pages_defrag	1
-t2	PRIMARY	n_leaf_pages_reserved	1
-t2	PRIMARY	n_page_split	1
-t2	PRIMARY	n_pages_freed	1
-t2	SECOND	n_leaf_pages_defrag	1
-t2	SECOND	n_leaf_pages_reserved	1
-t2	SECOND	n_page_split	1
-t2	SECOND	n_pages_freed	1
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
+table_name	index_name	stat_name
+t2	PRIMARY	n_leaf_pages_defrag
+t2	PRIMARY	n_leaf_pages_reserved
+t2	PRIMARY	n_page_split
+t2	PRIMARY	n_pages_freed
+t2	SECOND	n_leaf_pages_defrag
+t2	SECOND	n_leaf_pages_reserved
+t2	SECOND	n_page_split
+t2	SECOND	n_pages_freed
 # Clean up
+ALTER TABLE t2 STATS_PERSISTENT=1;
 DROP TABLE t2;
 SELECT * FROM mysql.innodb_index_stats;
 database_name	table_name	index_name	last_update	stat_name	stat_value	sample_size	stat_description
diff --git a/mysql-test/suite/innodb/t/innodb_defrag_stats.test b/mysql-test/suite/innodb/t/innodb_defrag_stats.test
index e1e88a07477..799faa93ff0 100644
--- a/mysql-test/suite/innodb/t/innodb_defrag_stats.test
+++ b/mysql-test/suite/innodb/t/innodb_defrag_stats.test
@@ -8,77 +8,65 @@ SET GLOBAL innodb_defragment_stats_accuracy = 20;
 DELETE FROM mysql.innodb_index_stats;
 
 --echo # Create table.
-CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b VARCHAR(256), KEY SECOND(a, b)) ENGINE=INNODB;
+CREATE TABLE t1 (a INT PRIMARY KEY AUTO_INCREMENT, b VARCHAR(256),
+                 KEY SECOND(a, b)) ENGINE=INNODB STATS_PERSISTENT=0;
 
-INSERT INTO t1 SELECT seq, REPEAT('A', 256) FROM seq_1_to_1024;
+INSERT INTO t1 SELECT 100*FLOOR(seq/70)+seq%70, REPEAT('A', 256)
+FROM seq_1_to_1024;
 
 --echo # Not enough page splits to trigger persistent stats write yet.
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-
-INSERT INTO t1 SELECT seq, REPEAT('A', 256) FROM seq_1025_to_2048;
+SELECT * FROM mysql.innodb_index_stats;
 
---echo # Persistent stats recorded.
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
+INSERT INTO t1 SELECT 100*FLOOR(seq/70)+seq%70, REPEAT('A', 256)
+FROM seq_1025_to_1433;
 
---echo # Delete some rows.
 BEGIN;
 let $num_delete = 20;
 while ($num_delete)
 {
-    let $j = 100 * $num_delete;
-    eval delete from t1 where a between $j and $j + 30;
+    eval INSERT INTO t1 SELECT 100*$num_delete+seq, REPEAT('A', 256)
+    FROM seq_70_to_99;
     dec $num_delete;
 }
-COMMIT;
+ROLLBACK;
+
+SELECT @@GLOBAL.innodb_force_recovery<2 "have background defragmentation";
+
+# Wait for defrag_pool to be processed.
 
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
+let $wait_timeout=30;
+let $wait_condition = SELECT COUNT(*)>0 FROM mysql.innodb_index_stats;
+--source include/wait_condition.inc
+
+--sorted_result
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
 
 optimize table t1;
 
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
+--sorted_result
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
 
 set global innodb_defragment_stats_accuracy = 40;
 
 INSERT INTO t1 (b) SELECT b from t1;
 
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-
+--sorted_result
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
 
 INSERT INTO t1 (b) SELECT b from t1;
 
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-
+--sorted_result
+SELECT stat_name FROM mysql.innodb_index_stats WHERE table_name='t1';
 
 --echo # Table rename should cause stats rename.
 rename table t1 to t2;
 
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_page_split');
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_pages_freed');
-select count(stat_value) = 0 from mysql.innodb_index_stats where table_name like '%t1%' and  stat_name in ('n_leaf_pages_defrag');
-
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t2%' and  stat_name in ('n_page_split');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t2%' and  stat_name in ('n_pages_freed');
-select count(stat_value) > 0 from mysql.innodb_index_stats where table_name like '%t2%' and  stat_name in ('n_leaf_pages_defrag');
+--sorted_result
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
 
 --echo # Drop index should cause stats drop, but will not.
 drop index SECOND on t2;
 
---sorted_result
-SELECT stat_name, stat_value>0 FROM mysql.innodb_index_stats
-WHERE table_name like '%t2%' AND index_name='SECOND';
-
 --echo #
 --echo # MDEV-26636: Statistics must not be written for temporary tables
 --echo #
@@ -89,13 +77,13 @@ INSERT INTO t SELECT seq, '' FROM seq_1_to_100;
 
 --source include/restart_mysqld.inc
 
-SELECT * FROM mysql.innodb_index_stats where table_name like '%t1%';
-
 --sorted_result
-SELECT table_name, index_name, stat_name, stat_value>0
-FROM mysql.innodb_index_stats;
+SELECT table_name, index_name, stat_name FROM mysql.innodb_index_stats;
 
 --echo # Clean up
+# Starting with 10.6, DROP TABLE will not touch persistent statistics
+# (not defragmentation statistics either) if the table has none!
+ALTER TABLE t2 STATS_PERSISTENT=1;
 DROP TABLE t2;
 
 SELECT * FROM mysql.innodb_index_stats;
diff --git a/mysql-test/suite/innodb/t/undo_truncate.test b/mysql-test/suite/innodb/t/undo_truncate.test
index 9601de482b3..cf8c1a8d5e3 100644
--- a/mysql-test/suite/innodb/t/undo_truncate.test
+++ b/mysql-test/suite/innodb/t/undo_truncate.test
@@ -54,7 +54,7 @@ let $trx_after= `select substr('$trx_after',9)`;
 
 drop table t1, t2;
 
-if ($trx_before != $trx_after)
+if ($trx_before > $trx_after)
 {
-  echo Transaction sequence mismatch: $trx_before != $trx_after;
+  echo Transaction sequence mismatch: $trx_before > $trx_after;
 }
diff --git a/mysql-test/suite/plugins/r/feedback_plugin_load.result b/mysql-test/suite/plugins/r/feedback_plugin_load.result
index d76625bd3e2..4323dcce0a6 100644
--- a/mysql-test/suite/plugins/r/feedback_plugin_load.result
+++ b/mysql-test/suite/plugins/r/feedback_plugin_load.result
@@ -24,3 +24,19 @@ VARIABLE_VALUE>0	VARIABLE_NAME
 1	Collation used utf8mb4_bin
 1	Collation used utf8_bin
 1	Collation used utf8_general_ci
+prepare stmt from "SELECT VARIABLE_VALUE>0, VARIABLE_NAME FROM INFORMATION_SCHEMA.FEEDBACK WHERE VARIABLE_NAME LIKE 'Collation used %' ORDER BY VARIABLE_NAME";
+execute stmt;
+VARIABLE_VALUE>0	VARIABLE_NAME
+1	Collation used binary
+1	Collation used latin1_swedish_ci
+1	Collation used utf8mb4_bin
+1	Collation used utf8_bin
+1	Collation used utf8_general_ci
+execute stmt;
+VARIABLE_VALUE>0	VARIABLE_NAME
+1	Collation used binary
+1	Collation used latin1_swedish_ci
+1	Collation used utf8mb4_bin
+1	Collation used utf8_bin
+1	Collation used utf8_general_ci
+deallocate prepare stmt;
diff --git a/mysql-test/suite/plugins/t/feedback_plugin_load.test b/mysql-test/suite/plugins/t/feedback_plugin_load.test
index ecf678eb420..f67397afdfe 100644
--- a/mysql-test/suite/plugins/t/feedback_plugin_load.test
+++ b/mysql-test/suite/plugins/t/feedback_plugin_load.test
@@ -42,3 +42,10 @@ if (`SELECT VERSION() LIKE '%embedded%'`)
 SELECT VARIABLE_VALUE>0, VARIABLE_NAME FROM INFORMATION_SCHEMA.FEEDBACK
 WHERE VARIABLE_NAME LIKE 'Collation used %'
 ORDER BY VARIABLE_NAME;
+
+prepare stmt from "SELECT VARIABLE_VALUE>0, VARIABLE_NAME FROM INFORMATION_SCHEMA.FEEDBACK WHERE VARIABLE_NAME LIKE 'Collation used %' ORDER BY VARIABLE_NAME";
+
+execute stmt;
+execute stmt;
+
+deallocate prepare stmt;