MDEV-25907: Assertion failed in dict_table_schema_check()

dict_table_schema_check(): Simply remove the debug assertion.
We will still return a failure.

mysql-test/suite/innodb/r/innodb_stats_create_on_corrupted.result

 call mtr.add_suppression("InnoDB: Table .*innodb_index_stats.* not found");
 call mtr.add_suppression("InnoDB: Fetch of persistent statistics requested for table .*");
+call mtr.add_suppression("InnoDB: Table mysql\\.innodb_index_stats has length mismatch in the column name stat_description\\. Please run mariadb-upgrade");
+call mtr.add_suppression("InnoDB: Column stat_description in table mysql\\.innodb_index_stats is VARCHAR");
 ALTER TABLE mysql.innodb_index_stats RENAME TO mysql.innodb_index_stats_;
 CREATE TABLE test_ps_create_on_corrupted
 (a INT, PRIMARY KEY (a))
@@ -17,6 +19,13 @@ avg_row_length	0
 max_data_length	0
 index_length	0
 ALTER TABLE mysql.innodb_index_stats_ RENAME TO mysql.innodb_index_stats;
+SET old_mode='';
+ALTER TABLE mysql.innodb_index_stats
+MODIFY stat_description VARCHAR(1024) COLLATE utf8_bin;
+CREATE TABLE t (a INT) ENGINE=InnoDB STATS_PERSISTENT=1;
+ALTER TABLE mysql.innodb_index_stats
+MODIFY stat_description VARCHAR(1024) COLLATE utf8mb3_bin NOT NULL;
+DROP TABLE t;
 # restart
 SELECT seq_in_index, column_name, cardinality
 FROM information_schema.statistics WHERE table_name = 'test_ps_create_on_corrupted'

mysql-test/suite/innodb/t/innodb_stats_create_on_corrupted.test

@@ -12,6 +12,8 @@
 
 call mtr.add_suppression("InnoDB: Table .*innodb_index_stats.* not found");
 call mtr.add_suppression("InnoDB: Fetch of persistent statistics requested for table .*");
+call mtr.add_suppression("InnoDB: Table mysql\\.innodb_index_stats has length mismatch in the column name stat_description\\. Please run mariadb-upgrade");
+call mtr.add_suppression("InnoDB: Column stat_description in table mysql\\.innodb_index_stats is VARCHAR");
 
 -- vertical_results
 
@@ -34,6 +36,15 @@ FROM information_schema.tables WHERE table_name = 'test_ps_create_on_corrupted';
 # restore the persistent storage
 ALTER TABLE mysql.innodb_index_stats_ RENAME TO mysql.innodb_index_stats;
 
+SET old_mode='';
+ALTER TABLE mysql.innodb_index_stats
+MODIFY stat_description VARCHAR(1024) COLLATE utf8_bin;
+CREATE TABLE t (a INT) ENGINE=InnoDB STATS_PERSISTENT=1;
+ALTER TABLE mysql.innodb_index_stats
+MODIFY stat_description VARCHAR(1024) COLLATE utf8mb3_bin NOT NULL;
+
+DROP TABLE t;
+
 --source include/restart_mysqld.inc
 
 -- vertical_results

storage/innobase/dict/dict0stats.cc

@@ -405,7 +405,6 @@ dict_table_schema_check(
 
 		/* check length for exact match */
 		if (req_schema->columns[i].len != table->cols[j].len) {
-			ut_ad(table->cols[j].len < req_schema->columns[i].len);
 			sql_print_warning("InnoDB: Table %s has"
 					  " length mismatch in the"
 					  " column name %s."