Table mail
===========
+
private messages
-| Field | Description | Type | Null | Key | Default | Extra |
-| ----- | ----------- | ---- | ---- | --- | ------- | ----- |
-| id | sequential ID | int unsigned | YES | PRI | | auto_increment |
-| uid | Owner User id | mediumint unsigned | YES | | 0 | |
-| guid | A unique identifier for this private message | varchar(255) | YES | | | |
-| from-name | name of the sender | varchar(255) | YES | | | |
-| from-photo | contact photo link of the sender | varchar(255) | YES | | | |
-| from-url | profile linke of the sender | varchar(255) | YES | | | |
-| contact-id | contact.id | varchar(255) | NO | | | |
-| author-id | Link to the contact table with uid=0 of the author of the mail | int unsigned | NO | | | |
-| convid | conv.id | int unsigned | NO | | | |
-| title | | varchar(255) | YES | | | |
-| body | | mediumtext | NO | | | |
-| seen | if message visited it is 1 | boolean | YES | | 0 | |
-| reply | | boolean | YES | | 0 | |
-| replied | | boolean | YES | | 0 | |
-| unknown | if sender not in the contact table this is 1 | boolean | YES | | 0 | |
-| uri | | varchar(255) | YES | | | |
-| uri-id | Item-uri id of the related mail | int unsigned | NO | | | |
-| parent-uri | | varchar(255) | YES | | | |
-| parent-uri-id | Item-uri id of the parent of the related mail | int unsigned | NO | | | |
-| thr-parent | | varchar(255) | NO | | | |
-| thr-parent-id | Id of the item-uri table that contains the thread parent uri | int unsigned | NO | | | |
-| created | creation time of the private message | datetime | YES | | 0001-01-01 00:00:00 | |
+Fields
+------
+
+| Field | Description | Type | Null | Key | Default | Extra |
+| ------------- | -------------------------------------------------------------- | ------------------ | ---- | --- | ------------------- | -------------- |
+| id | sequential ID | int unsigned | NO | PRI | NULL | auto_increment |
+| uid | Owner User id | mediumint unsigned | NO | | 0 | |
+| guid | A unique identifier for this private message | varchar(255) | NO | | | |
+| from-name | name of the sender | varchar(255) | NO | | | |
+| from-photo | contact photo link of the sender | varchar(255) | NO | | | |
+| from-url | profile linke of the sender | varchar(255) | NO | | | |
+| contact-id | contact.id | varchar(255) | YES | | NULL | |
+| author-id | Link to the contact table with uid=0 of the author of the mail | int unsigned | YES | | NULL | |
+| convid | conv.id | int unsigned | YES | | NULL | |
+| title | | varchar(255) | NO | | | |
+| body | | mediumtext | YES | | NULL | |
+| seen | if message visited it is 1 | boolean | NO | | 0 | |
+| reply | | boolean | NO | | 0 | |
+| replied | | boolean | NO | | 0 | |
+| unknown | if sender not in the contact table this is 1 | boolean | NO | | 0 | |
+| uri | | varchar(255) | NO | | | |
+| uri-id | Item-uri id of the related mail | int unsigned | YES | | NULL | |
+| parent-uri | | varchar(255) | NO | | | |
+| parent-uri-id | Item-uri id of the parent of the related mail | int unsigned | YES | | NULL | |
+| thr-parent | | varchar(255) | YES | | NULL | |
+| thr-parent-id | Id of the item-uri table that contains the thread parent uri | int unsigned | YES | | NULL | |
+| created | creation time of the private message | datetime | NO | | 0001-01-01 00:00:00 | |
+
+Indexes
+------------
+
+| Name | Fields |
+| ------------- | -------------- |
+| PRIMARY | id |
+| uid_seen | uid, seen |
+| convid | convid |
+| uri | uri(64) |
+| parent-uri | parent-uri(64) |
+| contactid | contact-id(32) |
+| author-id | author-id |
+| uri-id | uri-id |
+| parent-uri-id | parent-uri-id |
+| thr-parent-id | thr-parent-id |
+
+Foreign Keys
+------------
+
+| Field | Target Table | Target Field |
+|-------|--------------|--------------|
+| uid | [user](help/database/db_user) | uid |
+| author-id | [contact](help/database/db_contact) | id |
+| uri-id | [item-uri](help/database/db_item-uri) | id |
+| parent-uri-id | [item-uri](help/database/db_item-uri) | id |
+| thr-parent-id | [item-uri](help/database/db_item-uri) | id |
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