Merge 10.2 into 10.3

6 files changed, 187 insertions, 212 deletions

diff --git a/mysql-test/suite/galera/r/galera_fulltext.result b/mysql-test/suite/galera/r/galera_fulltext.result
index f52f5c996a3..18e3bff40fc 100644
--- a/mysql-test/suite/galera/r/galera_fulltext.result
+++ b/mysql-test/suite/galera/r/galera_fulltext.result
@@ -34,31 +34,3 @@ 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/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/innodb/r/innodb_defrag_stats.result b/mysql-test/suite/innodb/r/innodb_defrag_stats.result
index 6c5fe1817e2..d1e9e2e78ae 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
 #
@@ -125,20 +120,18 @@ SET GLOBAL innodb_defragment_stats_accuracy = 1;
 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;
-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/plugins/r/feedback_plugin_load.result b/mysql-test/suite/plugins/r/feedback_plugin_load.result
index 843cd15ac94..8b2a561b9f0 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 latin1_swedish_ci
 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_bin
+1	Collation used latin1_swedish_ci
+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_bin
+1	Collation used latin1_swedish_ci
+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 c0546cef0f9..9fbe523e5f3 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;