enable main.mysqldump-system test

mysql-test/main/disabled.def

@@ -20,4 +20,3 @@ partition_open_files_limit : open_files_limit check broken by MDEV-18360
 partition_innodb         : Waiting for fix MDEV-20169
 type_enum                : Waiting for fix MDEV-6978
 type_set                 : Waiting for fix MDEV-6978
-mysqldump-system : FIXME nondeterministic

mysql-test/main/mysqldump-system.result

@@ -32,6 +32,7 @@ delete from mysql.column_stats where column_name!='Time_zone_id';
 set time_zone="+03:00";
 update mysql.innodb_index_stats set last_update="2020-01-01" where database_name="mysql" and table_name="tz";
 update mysql.innodb_table_stats set last_update="2020-01-01" where database_name="mysql" and table_name="tz";
+update mysql.column_stats set histogram=json_replace(histogram, '$.collected_at', '2020-01-02 03:04:05 UTC', '$.collected_by', 'this very version');
 set global innodb_stats_persistent= @save_innodb_stats_persistent;
 alter table mysql.time_zone_name ORDER BY Name;
 CREATE SERVER s1 FOREIGN DATA WRAPPER mysql OPTIONS(Host 'localhost');
@@ -94,7 +95,7 @@ USE mysql;
 LOCK TABLES `column_stats` WRITE;
 /*!40000 ALTER TABLE `column_stats` DISABLE KEYS */;
 REPLACE INTO `column_stats` VALUES
-('mysql','tz','Time_zone_id','1','5',0.0000,4.0000,98.2500,254,'DOUBLE_PREC_HB','\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0');
+('mysql','tz','Time_zone_id','1','5',0.0000,4.0000,98.2500,4,'JSON_HB','{\"target_histogram_size\": 254, \"collected_at\": \"2020-01-02 03:04:05 UTC\", \"collected_by\": \"this very version\", \"histogram_hb\": [{\"start\": \"1\", \"size\": 0.340966921, \"ndv\": 1}, {\"start\": \"3\", \"size\": 0.328244275, \"ndv\": 1}, {\"start\": \"4\", \"size\": 0.328244275, \"ndv\": 1}, {\"start\": \"5\", \"end\": \"5\", \"size\": 0.002544529, \"ndv\": 1}]}');
 /*!40000 ALTER TABLE `column_stats` ENABLE KEYS */;
 UNLOCK TABLES;
 
@@ -708,7 +709,7 @@ USE mysql;
 LOCK TABLES `column_stats` WRITE;
 /*!40000 ALTER TABLE `column_stats` DISABLE KEYS */;
 REPLACE INTO `column_stats` VALUES
-('mysql','tz','Time_zone_id','1','5',0.0000,4.0000,98.2500,254,'DOUBLE_PREC_HB','\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0');
+('mysql','tz','Time_zone_id','1','5',0.0000,4.0000,98.2500,4,'JSON_HB','{\"target_histogram_size\": 254, \"collected_at\": \"2020-01-02 03:04:05 UTC\", \"collected_by\": \"this very version\", \"histogram_hb\": [{\"start\": \"1\", \"size\": 0.340966921, \"ndv\": 1}, {\"start\": \"3\", \"size\": 0.328244275, \"ndv\": 1}, {\"start\": \"4\", \"size\": 0.328244275, \"ndv\": 1}, {\"start\": \"5\", \"end\": \"5\", \"size\": 0.002544529, \"ndv\": 1}]}');
 /*!40000 ALTER TABLE `column_stats` ENABLE KEYS */;
 UNLOCK TABLES;
 
@@ -1299,7 +1300,7 @@ USE mysql;
 LOCK TABLES `column_stats` WRITE;
 /*!40000 ALTER TABLE `column_stats` DISABLE KEYS */;
 INSERT  IGNORE INTO `column_stats` VALUES
-('mysql','tz','Time_zone_id','1','5',0.0000,4.0000,98.2500,254,'DOUBLE_PREC_HB','\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0');
+('mysql','tz','Time_zone_id','1','5',0.0000,4.0000,98.2500,4,'JSON_HB','{\"target_histogram_size\": 254, \"collected_at\": \"2020-01-02 03:04:05 UTC\", \"collected_by\": \"this very version\", \"histogram_hb\": [{\"start\": \"1\", \"size\": 0.340966921, \"ndv\": 1}, {\"start\": \"3\", \"size\": 0.328244275, \"ndv\": 1}, {\"start\": \"4\", \"size\": 0.328244275, \"ndv\": 1}, {\"start\": \"5\", \"end\": \"5\", \"size\": 0.002544529, \"ndv\": 1}]}');
 /*!40000 ALTER TABLE `column_stats` ENABLE KEYS */;
 UNLOCK TABLES;
 

mysql-test/main/mysqldump-system.test

@@ -50,6 +50,7 @@ delete from mysql.column_stats where column_name!='Time_zone_id';
 set time_zone="+03:00";
 update mysql.innodb_index_stats set last_update="2020-01-01" where database_name="mysql" and table_name="tz";
 update mysql.innodb_table_stats set last_update="2020-01-01" where database_name="mysql" and table_name="tz";
+update mysql.column_stats set histogram=json_replace(histogram, '$.collected_at', '2020-01-02 03:04:05 UTC', '$.collected_by', 'this very version');
 set global innodb_stats_persistent= @save_innodb_stats_persistent;
 alter table mysql.time_zone_name ORDER BY Name;