- final fixes for bug#16431 (Events: An event which alters itself disappears)

- fix for bug#16423 (Events: SHOW CREATE EVENT doesn't work)
- this Changeset commits makes CREATE/UPDATE/DELETE EVENT real DDL statements
  by committing the currently open transaction before they are executed.
- this Changeset also fixes a trailing space problem since the very early days
  of the internal cron
- adds sophisticated checking of whether mysql.event was tampered accidentally
  or with purpose by an user.
- adds a lot of inline function documentation - documents everything left
  uncodumented
- INTERVAL_XXXX to XXX in I_S.EVENTS.INTERVAL_FIELD

WL#1034 (Internal CRON)

1 files changed, 30 insertions, 0 deletions

diff --git a/sql/sql_acl.h b/sql/sql_acl.h
index f42406ca1d2..6cd61a77c49 100644
--- a/sql/sql_acl.h
+++ b/sql/sql_acl.h
@@ -129,6 +129,36 @@
 				     (((A) & ALTER_PROC_ACL) >> 23) | \
 				     (((A) & GRANT_ACL) >> 8))
 
+enum mysql_db_table_field
+{
+  MYSQL_DB_FIELD_HOST = 0,
+  MYSQL_DB_FIELD_DB,
+  MYSQL_DB_FIELD_USER,
+  MYSQL_DB_FIELD_SELECT_PRIV,
+  MYSQL_DB_FIELD_INSERT_PRIV,
+  MYSQL_DB_FIELD_UPDATE_PRIV,
+  MYSQL_DB_FIELD_DELETE_PRIV,
+  MYSQL_DB_FIELD_CREATE_PRIV,
+  MYSQL_DB_FIELD_DROP_PRIV,
+  MYSQL_DB_FIELD_GRANT_PRIV,
+  MYSQL_DB_FIELD_REFERENCES_PRIV,
+  MYSQL_DB_FIELD_INDEX_PRIV,
+  MYSQL_DB_FIELD_ALTER_PRIV,
+  MYSQL_DB_FIELD_CREATE_TMP_TABLE_PRIV,
+  MYSQL_DB_FIELD_LOCK_TABLES_PRIV,
+  MYSQL_DB_FIELD_CREATE_VIEW_PRIV,
+  MYSQL_DB_FIELD_SHOW_VIEW_PRIV,
+  MYSQL_DB_FIELD_CREATE_ROUTINE_PRIV,
+  MYSQL_DB_FIELD_ALTER_ROUTINE_PRIV,
+  MYSQL_DB_FIELD_EXECUTE_PRIV,
+  MYSQL_DB_FIELD_EVENT_PRIV,
+  MYSQL_DB_FIELD_TRIGGER_PRIV,
+  MYSQL_DB_FIELD_COUNT
+};
+
+extern TABLE_FIELD_W_TYPE mysql_db_table_fields[];
+extern time_t mysql_db_table_last_check;
+
 /* Classes */
 
 struct acl_host_and_ip