MDEV-9077 - port sys schema to MariaDB

- Innodb is not always available, which means t is not always
possible to use innodb system variables, or innodb information schema
tables.

Thus creation of objects that use Innodb information_schema is enclosed
into BEGIN NOT ATOMIC blocks with dummy SQLEXCEPTION handler.

- sys_config table uses Aria, just like other system tables.

- several tables that exist in MySQL, do not exist in MariaDB
   performance_schema.replication_applier_status, mysql.slave_master_info,
   mysql.slave_relay_log_info

scripts/sys_schema/views/i_s/innodb_buffer_stats_by_schema.sql

@@ -30,6 +30,12 @@
 -- +--------------------------+------------+------------+-------+--------------+-----------+-------------+
 --
 
+DELIMITER $$
+
+BEGIN NOT ATOMIC
+  DECLARE EXIT HANDLER FOR SQLEXCEPTION
+  BEGIN
+  END;
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
   DEFINER = 'root'@'localhost'
@@ -54,3 +60,6 @@ SELECT IF(LOCATE('.', ibp.table_name) = 0, 'InnoDB System', REPLACE(SUBSTRING_IN
  WHERE table_name IS NOT NULL
  GROUP BY object_schema
  ORDER BY SUM(IF(ibp.compressed_size = 0, 16384, compressed_size)) DESC;
+END$$
+DELIMITER ;
+

scripts/sys_schema/views/i_s/innodb_buffer_stats_by_table.sql

@@ -34,6 +34,9 @@
 -- +--------------------------+------------------------------------+------------+-----------+-------+--------------+-----------+-------------+
 --
 
+DELIMITER $$
+BEGIN NOT ATOMIC
+DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN END;
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
   DEFINER = 'root'@'localhost'
@@ -60,3 +63,5 @@ SELECT IF(LOCATE('.', ibp.table_name) = 0, 'InnoDB System', REPLACE(SUBSTRING_IN
  WHERE table_name IS NOT NULL
  GROUP BY object_schema, object_name
  ORDER BY SUM(IF(ibp.compressed_size = 0, 16384, compressed_size)) DESC;
+END$$
+DELIMITER ;

scripts/sys_schema/views/i_s/innodb_lock_waits.sql

@@ -51,7 +51,11 @@
 -- sql_kill_blocking_connection: KILL 4
 -- 1 row in set (0.01 sec)
 --
-
+DELIMITER $$
+BEGIN NOT ATOMIC
+  DECLARE EXIT HANDLER FOR SQLEXCEPTION
+  BEGIN
+  END;
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
   DEFINER = 'root'@'localhost'
@@ -116,3 +120,5 @@ SELECT r.trx_wait_started AS wait_started,
        INNER JOIN information_schema.innodb_locks bl ON bl.lock_id = w.blocking_lock_id
        INNER JOIN information_schema.innodb_locks rl ON rl.lock_id = w.requested_lock_id
  ORDER BY r.trx_wait_started;
+ END$$
+DELIMITER ;

scripts/sys_schema/views/i_s/x_innodb_buffer_stats_by_schema.sql

@@ -29,6 +29,11 @@
 -- +--------------------------+-----------+--------+-------+--------------+-----------+-------------+
 --
 
+DELIMITER $$
+BEGIN NOT ATOMIC
+  DECLARE EXIT HANDLER FOR SQLEXCEPTION
+  BEGIN
+  END;
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
   DEFINER = 'root'@'localhost'
@@ -46,10 +51,12 @@ SELECT IF(LOCATE('.', ibp.table_name) = 0, 'InnoDB System', REPLACE(SUBSTRING_IN
        SUM(IF(ibp.compressed_size = 0, 16384, compressed_size)) AS allocated,
        SUM(ibp.data_size) AS data,
        COUNT(ibp.page_number) AS pages,
-       COUNT(IF(ibp.is_hashed = 'YES', 1, NULL)) AS pages_hashed,
-       COUNT(IF(ibp.is_old = 'YES', 1, NULL)) AS pages_old,
+       COUNT(IF(ibp.is_hashed, 1, NULL)) AS pages_hashed,
+       COUNT(IF(ibp.is_old, 1, NULL)) AS pages_old,
        ROUND(IFNULL(SUM(ibp.number_records)/NULLIF(COUNT(DISTINCT ibp.index_name), 0), 0)) AS rows_cached 
   FROM information_schema.innodb_buffer_page ibp 
  WHERE table_name IS NOT NULL
  GROUP BY object_schema
  ORDER BY SUM(IF(ibp.compressed_size = 0, 16384, compressed_size)) DESC;
+END$$
+DELIMITER ;

scripts/sys_schema/views/i_s/x_innodb_buffer_stats_by_table.sql

@@ -33,7 +33,9 @@
 -- ...
 -- +--------------------------+------------------------------------+-----------+--------+-------+--------------+-----------+-------------+
 --
-
+DELIMITER $$
+BEGIN NOT ATOMIC
+DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN END;
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
   DEFINER = 'root'@'localhost'
@@ -53,10 +55,12 @@ SELECT IF(LOCATE('.', ibp.table_name) = 0, 'InnoDB System', REPLACE(SUBSTRING_IN
        SUM(IF(ibp.compressed_size = 0, 16384, compressed_size)) AS allocated,
        SUM(ibp.data_size) AS data,
        COUNT(ibp.page_number) AS pages,
-       COUNT(IF(ibp.is_hashed = 'YES', 1, NULL)) AS pages_hashed,
-       COUNT(IF(ibp.is_old = 'YES', 1, NULL)) AS pages_old,
+       COUNT(IF(ibp.is_hashed, 1, NULL)) AS pages_hashed,
+       COUNT(IF(ibp.is_old, 1, NULL)) AS pages_old,
        ROUND(IFNULL(SUM(ibp.number_records)/NULLIF(COUNT(DISTINCT ibp.index_name), 0), 0)) AS rows_cached 
   FROM information_schema.innodb_buffer_page ibp 
  WHERE table_name IS NOT NULL
  GROUP BY object_schema, object_name
  ORDER BY SUM(IF(ibp.compressed_size = 0, 16384, compressed_size)) DESC;
+END$$
+DELIMITER ;

scripts/sys_schema/views/i_s/x_innodb_lock_waits.sql

@@ -52,6 +52,10 @@
 -- 1 row in set (0.01 sec)
 --
 
+DELIMITER $$
+BEGIN NOT ATOMIC 
+DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN END;
+
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
   DEFINER = 'root'@'localhost'
@@ -116,3 +120,5 @@ SELECT r.trx_wait_started AS wait_started,
        INNER JOIN information_schema.innodb_locks bl ON bl.lock_id = w.blocking_lock_id
        INNER JOIN information_schema.innodb_locks rl ON rl.lock_id = w.requested_lock_id
  ORDER BY r.trx_wait_started;
+END$$
+DELIMITER ;

scripts/sys_schema/views/p_s/metrics.sql

@@ -68,6 +68,9 @@
 -- | UNIX_TIMESTAMP()                              | 1433042870.382          ...| System Time                          | YES     |
 -- +-----------------------------------------------+-------------------------...+--------------------------------------+---------+
 -- 412 rows in set (0.02 sec)
+DELIMITER $$
+BEGIN NOT ATOMIC
+DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN END;
 
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
@@ -85,7 +88,7 @@ SELECT LOWER(VARIABLE_NAME) AS Variable_name, VARIABLE_VALUE AS Variable_value,
 ) UNION ALL (
 SELECT NAME AS Variable_name, COUNT AS Variable_value,
        CONCAT('InnoDB Metrics - ', SUBSYSTEM) AS Type,
-       IF(STATUS = 'enabled', 'YES', 'NO') AS Enabled
+      'YES' AS Enabled
   FROM information_schema.INNODB_METRICS
   -- Deduplication - some variables exists both in GLOBAL_STATUS and INNODB_METRICS
   -- Keep the one from GLOBAL_STATUS as it is always enabled and it's more likely to be used for existing tools.
@@ -119,3 +122,5 @@ SELECT 'NOW()' AS Variable_name, NOW(3) AS Variable_value, 'System Time' AS Type
 SELECT 'UNIX_TIMESTAMP()' AS Variable_name, ROUND(UNIX_TIMESTAMP(NOW(3)), 3) AS Variable_value, 'System Time' AS Type, 'YES' AS Enabled
 )
  ORDER BY Type, Variable_name;
+END$$
+DELIMITER ;

scripts/sys_schema/views/p_s/schema_table_statistics_with_buffer.sql

@@ -49,7 +49,10 @@
 --      innodb_buffer_bytes_data: 1924
 --     innodb_buffer_rows_cached: 2
 --
- 
+
+DELIMITER $$
+BEGIN NOT ATOMIC
+DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN END;
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
   DEFINER = 'root'@'localhost'
@@ -114,3 +117,6 @@ SELECT pst.object_schema AS table_schema,
     ON pst.object_schema = ibp.object_schema
    AND pst.object_name = ibp.object_name
  ORDER BY pst.sum_timer_wait DESC;
+
+END$$
+DELIMITER ;

scripts/sys_schema/views/p_s/x_schema_table_statistics_with_buffer.sql

@@ -49,7 +49,11 @@
 --    innodb_buffer_pages_old: 42
 --  innodb_buffer_rows_cached: 210
 --
- 
+
+DELIMITER $$
+BEGIN NOT ATOMIC
+DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN END;
+
 CREATE OR REPLACE
   ALGORITHM = TEMPTABLE
   DEFINER = 'root'@'localhost'
@@ -114,3 +118,5 @@ SELECT pst.object_schema AS table_schema,
     ON pst.object_schema = ibp.object_schema
    AND pst.object_name = ibp.object_name
  ORDER BY pst.sum_timer_wait DESC;
+END$$
+DELIMITER ;