Fix intermittent failures of innodb.stats_persistent

We do not really care about the exact result; we only care that the
statistics will be accessed. The result could change depending on
when some statistics were updated in the background or when some
committed delete-marked rows were purged from other tables on
which persistent statistics are enabled.

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

@@ -6,9 +6,9 @@ SET DEBUG_SYNC='dict_stats_update_persistent SIGNAL stop WAIT_FOR go';
 ANALYZE TABLE t1;
 connect con1, localhost, root;
 SET DEBUG_SYNC='now WAIT_FOR stop';
-SELECT ENGINE,SUM(DATA_LENGTH+INDEX_LENGTH),COUNT(ENGINE),SUM(DATA_LENGTH),SUM(INDEX_LENGTH) FROM information_schema.TABLES WHERE ENGINE='InnoDB';
-ENGINE	SUM(DATA_LENGTH+INDEX_LENGTH)	COUNT(ENGINE)	SUM(DATA_LENGTH)	SUM(INDEX_LENGTH)
-InnoDB	114688	4	65536	49152
+SELECT SUM(DATA_LENGTH+INDEX_LENGTH) FROM information_schema.TABLES WHERE ENGINE='InnoDB';
+SUM(DATA_LENGTH+INDEX_LENGTH)
+SUM
 SET DEBUG_SYNC='now SIGNAL go';
 disconnect con1;
 connection default;

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

@@ -14,7 +14,8 @@ SET DEBUG_SYNC='dict_stats_update_persistent SIGNAL stop WAIT_FOR go';
 --connect(con1, localhost, root)
 SET DEBUG_SYNC='now WAIT_FOR stop';
 
-SELECT ENGINE,SUM(DATA_LENGTH+INDEX_LENGTH),COUNT(ENGINE),SUM(DATA_LENGTH),SUM(INDEX_LENGTH) FROM information_schema.TABLES WHERE ENGINE='InnoDB';
+--replace_column 1 SUM
+SELECT SUM(DATA_LENGTH+INDEX_LENGTH) FROM information_schema.TABLES WHERE ENGINE='InnoDB';
 
 SET DEBUG_SYNC='now SIGNAL go';
 --disconnect con1