-/**
-* notify-flags
-*/
-define ( 'NOTIFY_INTRO', 0x0001 );
-define ( 'NOTIFY_CONFIRM', 0x0002 );
-define ( 'NOTIFY_WALL', 0x0004 );
-define ( 'NOTIFY_COMMENT', 0x0008 );
-define ( 'NOTIFY_MAIL', 0x0010 );
-define ( 'NOTIFY_SUGGEST', 0x0020 );
-define ( 'NOTIFY_PROFILE', 0x0040 );
-define ( 'NOTIFY_TAGSELF', 0x0080 );
-define ( 'NOTIFY_TAGSHARE', 0x0100 );
-define ( 'NOTIFY_POKE', 0x0200 );
-define ( 'NOTIFY_SHARE', 0x0400 );
+| Field | Description | Type | Null | Key | Default | Extra |
+| ------------------------ | --------------------------------------------------------------------------------- | ------------------ | ---- | --- | ------------------- | -------------- |
+| uid | sequential ID | mediumint unsigned | NO | PRI | NULL | auto_increment |
+| parent-uid | The parent user that has full control about this user | mediumint unsigned | YES | | NULL | |
+| guid | A unique identifier for this user | varchar(64) | NO | | | |
+| username | Name that this user is known by | varchar(255) | NO | | | |
+| password | encrypted password | varchar(255) | NO | | | |
+| legacy_password | Is the password hash double-hashed? | boolean | NO | | 0 | |
+| nickname | nick- and user name | varchar(255) | NO | | | |
+| email | the users email address | varchar(255) | NO | | | |
+| openid | | varchar(255) | NO | | | |
+| timezone | PHP-legal timezone | varchar(128) | NO | | | |
+| language | default language | varchar(32) | NO | | en | |
+| register_date | timestamp of registration | datetime | NO | | 0001-01-01 00:00:00 | |
+| login_date | timestamp of last login | datetime | NO | | 0001-01-01 00:00:00 | |
+| last-activity | Day of the last activity | date | YES | | NULL | |
+| default-location | Default for item.location | varchar(255) | NO | | | |
+| allow_location | 1 allows to display the location | boolean | NO | | 0 | |
+| theme | user theme preference | varchar(255) | NO | | | |
+| pubkey | RSA public key 4096 bit | text | YES | | NULL | |
+| prvkey | RSA private key 4096 bit | text | YES | | NULL | |
+| spubkey | | text | YES | | NULL | |
+| sprvkey | | text | YES | | NULL | |
+| verified | user is verified through email | boolean | NO | | 0 | |
+| blocked | 1 for user is blocked | boolean | NO | | 0 | |
+| blockwall | Prohibit contacts to post to the profile page of the user | boolean | NO | | 0 | |
+| hidewall | Hide profile details from unkown viewers | boolean | NO | | 0 | |
+| blocktags | Prohibit contacts to tag the post of this user | boolean | NO | | 0 | |
+| unkmail | Permit unknown people to send private mails to this user | boolean | NO | | 0 | |
+| cntunkmail | | int unsigned | NO | | 10 | |
+| notify-flags | email notification options | smallint unsigned | NO | | 65535 | |
+| page-flags | page/profile type | tinyint unsigned | NO | | 0 | |
+| account-type | | tinyint unsigned | NO | | 0 | |
+| prvnets | | boolean | NO | | 0 | |
+| pwdreset | Password reset request token | varchar(255) | YES | | NULL | |
+| pwdreset_time | Timestamp of the last password reset request | datetime | YES | | NULL | |
+| maxreq | | int unsigned | NO | | 10 | |
+| expire | Delay in days before deleting user-related posts. Scope is controlled by pConfig. | int unsigned | NO | | 0 | |
+| account_removed | if 1 the account is removed | boolean | NO | | 0 | |
+| account_expired | | boolean | NO | | 0 | |
+| account_expires_on | timestamp when account expires and will be deleted | datetime | NO | | 0001-01-01 00:00:00 | |
+| expire_notification_sent | timestamp of last warning of account expiration | datetime | NO | | 0001-01-01 00:00:00 | |
+| def_gid | | int unsigned | NO | | 0 | |
+| allow_cid | default permission for this user | mediumtext | YES | | NULL | |
+| allow_gid | default permission for this user | mediumtext | YES | | NULL | |
+| deny_cid | default permission for this user | mediumtext | YES | | NULL | |
+| deny_gid | default permission for this user | mediumtext | YES | | NULL | |
+| openidserver | | text | YES | | NULL | |