diff --git a/db/schema.rb b/db/schema.rb
index 4df54cede..ae220df3d 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20151117033430) do
+ActiveRecord::Schema.define(:version => 20151118031602) do
 
   create_table "activities", :force => true do |t|
     t.integer  "act_id",                                  :null => false
@@ -293,16 +293,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.boolean  "diff_all"
   end
 
-  create_table "columns_priv", :id => false, :force => true do |t|
-    t.string    "Host",        :limit => 60, :default => "", :null => false
-    t.string    "Db",          :limit => 64, :default => "", :null => false
-    t.string    "User",        :limit => 16, :default => "", :null => false
-    t.string    "Table_name",  :limit => 64, :default => "", :null => false
-    t.string    "Column_name", :limit => 64, :default => "", :null => false
-    t.timestamp "Timestamp",                                 :null => false
-    t.string    "Column_priv", :limit => 0,  :default => "", :null => false
-  end
-
   create_table "comments", :force => true do |t|
     t.string   "commented_type", :limit => 30, :default => "", :null => false
     t.integer  "commented_id",                 :default => 0,  :null => false
@@ -435,8 +425,8 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.string   "code"
     t.integer  "time"
     t.string   "extra"
-    t.datetime "created_at",                                  :null => false
-    t.datetime "updated_at",                                  :null => false
+    t.datetime "created_at",                                   :null => false
+    t.datetime "updated_at",                                   :null => false
     t.string   "location"
     t.string   "term"
     t.string   "string"
@@ -446,14 +436,15 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.string   "class_period"
     t.integer  "school_id"
     t.text     "description"
-    t.integer  "status",                       :default => 1
-    t.integer  "attachmenttype",               :default => 2
+    t.integer  "status",                        :default => 1
+    t.integer  "attachmenttype",                :default => 2
     t.integer  "lft"
     t.integer  "rgt"
-    t.integer  "is_public",       :limit => 1, :default => 1
-    t.integer  "inherit_members", :limit => 1, :default => 1
-    t.integer  "open_student",                 :default => 0
-    t.integer  "outline",                      :default => 0
+    t.integer  "is_public",        :limit => 1, :default => 1
+    t.integer  "inherit_members",  :limit => 1, :default => 1
+    t.integer  "open_student",                  :default => 0
+    t.integer  "outline",                       :default => 0
+    t.integer  "publish_resource",              :default => 0
   end
 
   create_table "custom_fields", :force => true do |t|
@@ -501,33 +492,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
   add_index "custom_values", ["custom_field_id"], :name => "index_custom_values_on_custom_field_id"
   add_index "custom_values", ["customized_type", "customized_id"], :name => "custom_values_customized"
 
-  create_table "db", :id => false, :force => true do |t|
-    t.string "Host",                  :limit => 60, :default => "",  :null => false
-    t.string "Db",                    :limit => 64, :default => "",  :null => false
-    t.string "User",                  :limit => 16, :default => "",  :null => false
-    t.string "Select_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Insert_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Update_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Delete_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Create_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Drop_priv",             :limit => 1,  :default => "N", :null => false
-    t.string "Grant_priv",            :limit => 1,  :default => "N", :null => false
-    t.string "References_priv",       :limit => 1,  :default => "N", :null => false
-    t.string "Index_priv",            :limit => 1,  :default => "N", :null => false
-    t.string "Alter_priv",            :limit => 1,  :default => "N", :null => false
-    t.string "Create_tmp_table_priv", :limit => 1,  :default => "N", :null => false
-    t.string "Lock_tables_priv",      :limit => 1,  :default => "N", :null => false
-    t.string "Create_view_priv",      :limit => 1,  :default => "N", :null => false
-    t.string "Show_view_priv",        :limit => 1,  :default => "N", :null => false
-    t.string "Create_routine_priv",   :limit => 1,  :default => "N", :null => false
-    t.string "Alter_routine_priv",    :limit => 1,  :default => "N", :null => false
-    t.string "Execute_priv",          :limit => 1,  :default => "N", :null => false
-    t.string "Event_priv",            :limit => 1,  :default => "N", :null => false
-    t.string "Trigger_priv",          :limit => 1,  :default => "N", :null => false
-  end
-
-  add_index "db", ["User"], :name => "User"
-
   create_table "delayed_jobs", :force => true do |t|
     t.integer  "priority",   :default => 0, :null => false
     t.integer  "attempts",   :default => 0, :null => false
@@ -565,26 +529,23 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
   add_index "documents", ["created_on"], :name => "index_documents_on_created_on"
   add_index "documents", ["project_id"], :name => "documents_project_id"
 
-  create_table "dts", :primary_key => "Num", :force => true do |t|
-    t.string   "Defect",        :limit => 50
-    t.string   "Category",      :limit => 50
-    t.string   "File"
-    t.string   "Method"
-    t.string   "Module",        :limit => 20
-    t.string   "Variable",      :limit => 50
-    t.integer  "StartLine"
-    t.integer  "IPLine"
-    t.string   "IPLineCode",    :limit => 200
-    t.string   "Judge",         :limit => 15
-    t.integer  "Review",        :limit => 1
+  create_table "dts", :force => true do |t|
+    t.string   "IPLineCode"
     t.string   "Description"
-    t.text     "PreConditions", :limit => 2147483647
-    t.text     "TraceInfo",     :limit => 2147483647
-    t.text     "Code",          :limit => 2147483647
+    t.string   "Num"
+    t.string   "Variable"
+    t.string   "TraceInfo"
+    t.string   "Method"
+    t.string   "File"
+    t.string   "IPLine"
+    t.string   "Review"
+    t.string   "Category"
+    t.string   "Defect"
+    t.string   "PreConditions"
+    t.string   "StartLine"
     t.integer  "project_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.integer  "id",                                  :null => false
+    t.datetime "created_at",    :null => false
+    t.datetime "updated_at",    :null => false
   end
 
   create_table "enabled_modules", :force => true do |t|
@@ -609,31 +570,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
   add_index "enumerations", ["id", "type"], :name => "index_enumerations_on_id_and_type"
   add_index "enumerations", ["project_id"], :name => "index_enumerations_on_project_id"
 
-  create_table "event", :id => false, :force => true do |t|
-    t.string    "db",                   :limit => 64,         :default => "",        :null => false
-    t.string    "name",                 :limit => 64,         :default => "",        :null => false
-    t.binary    "body",                 :limit => 2147483647,                        :null => false
-    t.string    "definer",              :limit => 77,         :default => "",        :null => false
-    t.datetime  "execute_at"
-    t.integer   "interval_value"
-    t.string    "interval_field",       :limit => 18
-    t.timestamp "created",                                                           :null => false
-    t.timestamp "modified",                                                          :null => false
-    t.datetime  "last_executed"
-    t.datetime  "starts"
-    t.datetime  "ends"
-    t.string    "status",               :limit => 18,         :default => "ENABLED", :null => false
-    t.string    "on_completion",        :limit => 8,          :default => "DROP",    :null => false
-    t.string    "sql_mode",             :limit => 0,          :default => "",        :null => false
-    t.string    "comment",              :limit => 64,         :default => "",        :null => false
-    t.integer   "originator",                                                        :null => false
-    t.string    "time_zone",            :limit => 64,         :default => "SYSTEM",  :null => false
-    t.string    "character_set_client", :limit => 32
-    t.string    "collation_connection", :limit => 32
-    t.string    "db_collation",         :limit => 32
-    t.binary    "body_utf8",            :limit => 2147483647
-  end
-
   create_table "first_pages", :force => true do |t|
     t.string   "web_title"
     t.string   "title"
@@ -685,21 +621,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.integer  "locked"
   end
 
-  create_table "func", :primary_key => "name", :force => true do |t|
-    t.boolean "ret",                 :default => false, :null => false
-    t.string  "dl",   :limit => 128, :default => "",    :null => false
-    t.string  "type", :limit => 9,                      :null => false
-  end
-
-  create_table "general_log", :id => false, :force => true do |t|
-    t.timestamp "event_time",                       :null => false
-    t.text      "user_host",    :limit => 16777215, :null => false
-    t.integer   "thread_id",                        :null => false
-    t.integer   "server_id",                        :null => false
-    t.string    "command_type", :limit => 64,       :null => false
-    t.text      "argument",     :limit => 16777215, :null => false
-  end
-
   create_table "groups_users", :id => false, :force => true do |t|
     t.integer "group_id", :null => false
     t.integer "user_id",  :null => false
@@ -707,35 +628,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
 
   add_index "groups_users", ["group_id", "user_id"], :name => "groups_users_ids", :unique => true
 
-  create_table "help_category", :primary_key => "help_category_id", :force => true do |t|
-    t.string  "name",               :limit => 64, :null => false
-    t.integer "parent_category_id", :limit => 2
-    t.text    "url",                              :null => false
-  end
-
-  add_index "help_category", ["name"], :name => "name", :unique => true
-
-  create_table "help_keyword", :primary_key => "help_keyword_id", :force => true do |t|
-    t.string "name", :limit => 64, :null => false
-  end
-
-  add_index "help_keyword", ["name"], :name => "name", :unique => true
-
-  create_table "help_relation", :id => false, :force => true do |t|
-    t.integer "help_topic_id",   :null => false
-    t.integer "help_keyword_id", :null => false
-  end
-
-  create_table "help_topic", :primary_key => "help_topic_id", :force => true do |t|
-    t.string  "name",             :limit => 64, :null => false
-    t.integer "help_category_id", :limit => 2,  :null => false
-    t.text    "description",                    :null => false
-    t.text    "example",                        :null => false
-    t.text    "url",                            :null => false
-  end
-
-  add_index "help_topic", ["name"], :name => "name", :unique => true
-
   create_table "homework_attaches", :force => true do |t|
     t.integer  "bid_id"
     t.integer  "user_id"
@@ -821,29 +713,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.datetime "updated_at",         :null => false
   end
 
-  create_table "host", :id => false, :force => true do |t|
-    t.string "Host",                  :limit => 60, :default => "",  :null => false
-    t.string "Db",                    :limit => 64, :default => "",  :null => false
-    t.string "Select_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Insert_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Update_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Delete_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Create_priv",           :limit => 1,  :default => "N", :null => false
-    t.string "Drop_priv",             :limit => 1,  :default => "N", :null => false
-    t.string "Grant_priv",            :limit => 1,  :default => "N", :null => false
-    t.string "References_priv",       :limit => 1,  :default => "N", :null => false
-    t.string "Index_priv",            :limit => 1,  :default => "N", :null => false
-    t.string "Alter_priv",            :limit => 1,  :default => "N", :null => false
-    t.string "Create_tmp_table_priv", :limit => 1,  :default => "N", :null => false
-    t.string "Lock_tables_priv",      :limit => 1,  :default => "N", :null => false
-    t.string "Create_view_priv",      :limit => 1,  :default => "N", :null => false
-    t.string "Show_view_priv",        :limit => 1,  :default => "N", :null => false
-    t.string "Create_routine_priv",   :limit => 1,  :default => "N", :null => false
-    t.string "Alter_routine_priv",    :limit => 1,  :default => "N", :null => false
-    t.string "Execute_priv",          :limit => 1,  :default => "N", :null => false
-    t.string "Trigger_priv",          :limit => 1,  :default => "N", :null => false
-  end
-
   create_table "invite_lists", :force => true do |t|
     t.integer  "project_id"
     t.integer  "user_id"
@@ -946,6 +815,16 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
 
   add_index "journal_details", ["journal_id"], :name => "journal_details_journal_id"
 
+  create_table "journal_details_copy", :force => true do |t|
+    t.integer "journal_id",               :default => 0,  :null => false
+    t.string  "property",   :limit => 30, :default => "", :null => false
+    t.string  "prop_key",   :limit => 30, :default => "", :null => false
+    t.text    "old_value"
+    t.text    "value"
+  end
+
+  add_index "journal_details_copy", ["journal_id"], :name => "journal_details_journal_id"
+
   create_table "journal_replies", :id => false, :force => true do |t|
     t.integer "journal_id"
     t.integer "user_id"
@@ -1073,15 +952,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
   add_index "messages", ["last_reply_id"], :name => "index_messages_on_last_reply_id"
   add_index "messages", ["parent_id"], :name => "messages_parent_id"
 
-  create_table "ndb_binlog_index", :primary_key => "epoch", :force => true do |t|
-    t.integer "Position",  :limit => 8, :null => false
-    t.string  "File",                   :null => false
-    t.integer "inserts",   :limit => 8, :null => false
-    t.integer "updates",   :limit => 8, :null => false
-    t.integer "deletes",   :limit => 8, :null => false
-    t.integer "schemaops", :limit => 8, :null => false
-  end
-
   create_table "news", :force => true do |t|
     t.integer  "project_id"
     t.string   "title",          :limit => 60, :default => "", :null => false
@@ -1214,7 +1084,8 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
   create_table "org_members", :force => true do |t|
     t.integer  "user_id"
     t.integer  "organization_id"
-    t.datetime "created_at"
+    t.datetime "created_at",      :null => false
+    t.datetime "updated_at",      :null => false
   end
 
   create_table "org_projects", :force => true do |t|
@@ -1241,10 +1112,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.datetime "updated_at",  :null => false
   end
 
-  create_table "plugin", :primary_key => "name", :force => true do |t|
-    t.string "dl", :limit => 128, :default => "", :null => false
-  end
-
   create_table "poll_answers", :force => true do |t|
     t.integer  "poll_question_id"
     t.text     "answer_text"
@@ -1320,42 +1187,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.datetime "updated_at",         :null => false
   end
 
-  create_table "proc", :id => false, :force => true do |t|
-    t.string    "db",                   :limit => 64,         :default => "",             :null => false
-    t.string    "name",                 :limit => 64,         :default => "",             :null => false
-    t.string    "type",                 :limit => 9,                                      :null => false
-    t.string    "specific_name",        :limit => 64,         :default => "",             :null => false
-    t.string    "language",             :limit => 3,          :default => "SQL",          :null => false
-    t.string    "sql_data_access",      :limit => 17,         :default => "CONTAINS_SQL", :null => false
-    t.string    "is_deterministic",     :limit => 3,          :default => "NO",           :null => false
-    t.string    "security_type",        :limit => 7,          :default => "DEFINER",      :null => false
-    t.binary    "param_list",                                                             :null => false
-    t.binary    "returns",              :limit => 2147483647,                             :null => false
-    t.binary    "body",                 :limit => 2147483647,                             :null => false
-    t.string    "definer",              :limit => 77,         :default => "",             :null => false
-    t.timestamp "created",                                                                :null => false
-    t.timestamp "modified",                                                               :null => false
-    t.string    "sql_mode",             :limit => 0,          :default => "",             :null => false
-    t.text      "comment",                                                                :null => false
-    t.string    "character_set_client", :limit => 32
-    t.string    "collation_connection", :limit => 32
-    t.string    "db_collation",         :limit => 32
-    t.binary    "body_utf8",            :limit => 2147483647
-  end
-
-  create_table "procs_priv", :id => false, :force => true do |t|
-    t.string    "Host",         :limit => 60, :default => "", :null => false
-    t.string    "Db",           :limit => 64, :default => "", :null => false
-    t.string    "User",         :limit => 16, :default => "", :null => false
-    t.string    "Routine_name", :limit => 64, :default => "", :null => false
-    t.string    "Routine_type", :limit => 9,                  :null => false
-    t.string    "Grantor",      :limit => 77, :default => "", :null => false
-    t.string    "Proc_priv",    :limit => 0,  :default => "", :null => false
-    t.timestamp "Timestamp",                                  :null => false
-  end
-
-  add_index "procs_priv", ["Grantor"], :name => "Grantor"
-
   create_table "project_infos", :force => true do |t|
     t.integer  "project_id"
     t.integer  "user_id"
@@ -1430,18 +1261,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
   add_index "projects_trackers", ["project_id", "tracker_id"], :name => "projects_trackers_unique", :unique => true
   add_index "projects_trackers", ["project_id"], :name => "projects_trackers_project_id"
 
-  create_table "proxies_priv", :id => false, :force => true do |t|
-    t.string    "Host",         :limit => 60, :default => "",    :null => false
-    t.string    "User",         :limit => 16, :default => "",    :null => false
-    t.string    "Proxied_host", :limit => 60, :default => "",    :null => false
-    t.string    "Proxied_user", :limit => 16, :default => "",    :null => false
-    t.boolean   "With_grant",                 :default => false, :null => false
-    t.string    "Grantor",      :limit => 77, :default => "",    :null => false
-    t.timestamp "Timestamp",                                     :null => false
-  end
-
-  add_index "proxies_priv", ["Grantor"], :name => "Grantor"
-
   create_table "queries", :force => true do |t|
     t.integer "project_id"
     t.string  "name",          :default => "",    :null => false
@@ -1555,17 +1374,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.integer  "is_teacher_score",              :default => 0
   end
 
-  create_table "servers", :primary_key => "Server_name", :force => true do |t|
-    t.string  "Host",     :limit => 64, :default => "", :null => false
-    t.string  "Db",       :limit => 64, :default => "", :null => false
-    t.string  "Username", :limit => 64, :default => "", :null => false
-    t.string  "Password", :limit => 64, :default => "", :null => false
-    t.integer "Port",                   :default => 0,  :null => false
-    t.string  "Socket",   :limit => 64, :default => "", :null => false
-    t.string  "Wrapper",  :limit => 64, :default => "", :null => false
-    t.string  "Owner",    :limit => 64, :default => "", :null => false
-  end
-
   create_table "settings", :force => true do |t|
     t.string   "name",       :default => "", :null => false
     t.text     "value"
@@ -1586,20 +1394,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.string   "description"
   end
 
-  create_table "slow_log", :id => false, :force => true do |t|
-    t.timestamp "start_time",                         :null => false
-    t.text      "user_host",      :limit => 16777215, :null => false
-    t.time      "query_time",                         :null => false
-    t.time      "lock_time",                          :null => false
-    t.integer   "rows_sent",                          :null => false
-    t.integer   "rows_examined",                      :null => false
-    t.string    "db",             :limit => 512,      :null => false
-    t.integer   "last_insert_id",                     :null => false
-    t.integer   "insert_id",                          :null => false
-    t.integer   "server_id",                          :null => false
-    t.text      "sql_text",       :limit => 16777215, :null => false
-  end
-
   create_table "softapplications", :force => true do |t|
     t.string   "name"
     t.text     "description"
@@ -1681,19 +1475,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.string   "subject"
   end
 
-  create_table "tables_priv", :id => false, :force => true do |t|
-    t.string    "Host",        :limit => 60, :default => "", :null => false
-    t.string    "Db",          :limit => 64, :default => "", :null => false
-    t.string    "User",        :limit => 16, :default => "", :null => false
-    t.string    "Table_name",  :limit => 64, :default => "", :null => false
-    t.string    "Grantor",     :limit => 77, :default => "", :null => false
-    t.timestamp "Timestamp",                                 :null => false
-    t.string    "Table_priv",  :limit => 0,  :default => "", :null => false
-    t.string    "Column_priv", :limit => 0,  :default => "", :null => false
-  end
-
-  add_index "tables_priv", ["Grantor"], :name => "Grantor"
-
   create_table "taggings", :force => true do |t|
     t.integer  "tag_id"
     t.integer  "taggable_id"
@@ -1743,32 +1524,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
   add_index "time_entries", ["project_id"], :name => "time_entries_project_id"
   add_index "time_entries", ["user_id"], :name => "index_time_entries_on_user_id"
 
-  create_table "time_zone", :primary_key => "Time_zone_id", :force => true do |t|
-    t.string "Use_leap_seconds", :limit => 1, :default => "N", :null => false
-  end
-
-  create_table "time_zone_leap_second", :primary_key => "Transition_time", :force => true do |t|
-    t.integer "Correction", :null => false
-  end
-
-  create_table "time_zone_name", :primary_key => "Name", :force => true do |t|
-    t.integer "Time_zone_id", :null => false
-  end
-
-  create_table "time_zone_transition", :id => false, :force => true do |t|
-    t.integer "Time_zone_id",                    :null => false
-    t.integer "Transition_time",    :limit => 8, :null => false
-    t.integer "Transition_type_id",              :null => false
-  end
-
-  create_table "time_zone_transition_type", :id => false, :force => true do |t|
-    t.integer "Time_zone_id",                                    :null => false
-    t.integer "Transition_type_id",                              :null => false
-    t.integer "Offset",                          :default => 0,  :null => false
-    t.integer "Is_DST",             :limit => 1, :default => 0,  :null => false
-    t.string  "Abbreviation",       :limit => 8, :default => "", :null => false
-  end
-
   create_table "tokens", :force => true do |t|
     t.integer  "user_id",                  :default => 0,  :null => false
     t.string   "action",     :limit => 30, :default => "", :null => false
@@ -1787,51 +1542,6 @@ ActiveRecord::Schema.define(:version => 20151117033430) do
     t.integer "fields_bits",                 :default => 0
   end
 
-  create_table "user", :id => false, :force => true do |t|
-    t.string  "Host",                   :limit => 60, :default => "",  :null => false
-    t.string  "User",                   :limit => 16, :default => "",  :null => false
-    t.string  "Password",               :limit => 41, :default => "",  :null => false
-    t.string  "Select_priv",            :limit => 1,  :default => "N", :null => false
-    t.string  "Insert_priv",            :limit => 1,  :default => "N", :null => false
-    t.string  "Update_priv",            :limit => 1,  :default => "N", :null => false
-    t.string  "Delete_priv",            :limit => 1,  :default => "N", :null => false
-    t.string  "Create_priv",            :limit => 1,  :default => "N", :null => false
-    t.string  "Drop_priv",              :limit => 1,  :default => "N", :null => false
-    t.string  "Reload_priv",            :limit => 1,  :default => "N", :null => false
-    t.string  "Shutdown_priv",          :limit => 1,  :default => "N", :null => false
-    t.string  "Process_priv",           :limit => 1,  :default => "N", :null => false
-    t.string  "File_priv",              :limit => 1,  :default => "N", :null => false
-    t.string  "Grant_priv",             :limit => 1,  :default => "N", :null => false
-    t.string  "References_priv",        :limit => 1,  :default => "N", :null => false
-    t.string  "Index_priv",             :limit => 1,  :default => "N", :null => false
-    t.string  "Alter_priv",             :limit => 1,  :default => "N", :null => false
-    t.string  "Show_db_priv",           :limit => 1,  :default => "N", :null => false
-    t.string  "Super_priv",             :limit => 1,  :default => "N", :null => false
-    t.string  "Create_tmp_table_priv",  :limit => 1,  :default => "N", :null => false
-    t.string  "Lock_tables_priv",       :limit => 1,  :default => "N", :null => false
-    t.string  "Execute_priv",           :limit => 1,  :default => "N", :null => false
-    t.string  "Repl_slave_priv",        :limit => 1,  :default => "N", :null => false
-    t.string  "Repl_client_priv",       :limit => 1,  :default => "N", :null => false
-    t.string  "Create_view_priv",       :limit => 1,  :default => "N", :null => false
-    t.string  "Show_view_priv",         :limit => 1,  :default => "N", :null => false
-    t.string  "Create_routine_priv",    :limit => 1,  :default => "N", :null => false
-    t.string  "Alter_routine_priv",     :limit => 1,  :default => "N", :null => false
-    t.string  "Create_user_priv",       :limit => 1,  :default => "N", :null => false
-    t.string  "Event_priv",             :limit => 1,  :default => "N", :null => false
-    t.string  "Trigger_priv",           :limit => 1,  :default => "N", :null => false
-    t.string  "Create_tablespace_priv", :limit => 1,  :default => "N", :null => false
-    t.string  "ssl_type",               :limit => 9,  :default => "",  :null => false
-    t.binary  "ssl_cipher",                                            :null => false
-    t.binary  "x509_issuer",                                           :null => false
-    t.binary  "x509_subject",                                          :null => false
-    t.integer "max_questions",                        :default => 0,   :null => false
-    t.integer "max_updates",                          :default => 0,   :null => false
-    t.integer "max_connections",                      :default => 0,   :null => false
-    t.integer "max_user_connections",                 :default => 0,   :null => false
-    t.string  "plugin",                 :limit => 64, :default => ""
-    t.text    "authentication_string"
-  end
-
   create_table "user_activities", :force => true do |t|
     t.string   "act_type"
     t.integer  "act_id"