Group commit for maria engine.

mysql-test/suite/maria/r/group_commit.result:
  Test of gruoup commit.
mysql-test/suite/maria/r/maria3.result:
  The new variables added.
mysql-test/suite/maria/t/group_commit.test:
  Test of group commit.
randgen:
  Randon query generator tests.
randgen/conf:
  Random query generator tests.
randgen/conf/maria_group_commit.yy:
  Random query generator test for group commit.
storage/maria/ha_maria.cc:
  New variables and support procedures for group commit added.
storage/maria/ma_init.c:
  Correct shutdown of group commit service thread and group commit.
storage/maria/ma_loghandler.c:
  Group commit added.
  Initialization of variables for embeded server edded.
storage/maria/ma_loghandler.h:
  Group commit types and routines.

1 files changed, 181 insertions, 0 deletions

diff --git a/randgen/conf/maria_group_commit.yy b/randgen/conf/maria_group_commit.yy
new file mode 100644
index 00000000000..e136cbf7b07
--- /dev/null
+++ b/randgen/conf/maria_group_commit.yy
@@ -0,0 +1,181 @@
+# test of group commit switching
+
+query:
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  select | insert | update| delete |
+  change_group_commit | change_interval;
+
+
+select:
+	SELECT select_item FROM join where order_by limit;
+
+select_item:
+	* | X . _field ;
+
+join:
+	_table AS X |
+	_table AS X LEFT JOIN _table AS Y ON ( X . _field = Y . _field ) ;
+
+where:
+	|
+	WHERE X . _field < value |
+	WHERE X . _field > value |
+	WHERE X . _field = value ;
+
+where_delete:
+	|
+	WHERE _field < value |
+	WHERE _field > value |
+	WHERE _field = value ;
+
+order_by:
+	| ORDER BY X . _field ;
+
+limit:
+	| LIMIT _digit ;
+
+insert:
+	INSERT INTO _table ( _field , _field ) VALUES ( value , value ) ;
+
+update:
+	UPDATE _table AS X SET _field = value where order_by limit ;
+
+delete:
+	DELETE FROM _table where_delete LIMIT _digit ;
+
+value:
+	' _letter ' | _digit | _date | _datetime | _time | _english ;
+
+change_group_commit:
+        SET GLOBAL MARIA_GROUP_COMMIT=none_soft_hard;
+
+none_soft_hard:
+        NONE | SOFT | HARD;
+
+change_interval:
+     set_interval | set_interval | set_interval | set_interval |
+     drop_interval;
+
+set_interval:
+        SET GLOBAL MARIA_GROUP_COMMIT_INTERVAL=_tinyint_unsigned;
+
+drop_interval:
+        SET GLOBAL MARIA_GROUP_COMMIT_INTERVAL=0;