friendica-github/doc/database/db_post-thread.md

Table post-thread
===========

Thread related data

Fields
------

| Field     | Description                                                                                             | Type         | Null | Key | Default             | Extra |
| --------- | ------------------------------------------------------------------------------------------------------- | ------------ | ---- | --- | ------------------- | ----- |
| uri-id    | Id of the item-uri table entry that contains the item uri                                               | int unsigned | NO   | PRI | NULL                |       |
| owner-id  | Item owner                                                                                              | int unsigned | NO   |     | 0                   |       |
| author-id | Item author                                                                                             | int unsigned | NO   |     | 0                   |       |
| causer-id | Link to the contact table with uid=0 of the contact that caused the item creation                       | int unsigned | YES  |     | NULL                |       |
| network   |                                                                                                         | char(4)      | NO   |     |                     |       |
| created   |                                                                                                         | datetime     | NO   |     | 0001-01-01 00:00:00 |       |
| received  |                                                                                                         | datetime     | NO   |     | 0001-01-01 00:00:00 |       |
| changed   | Date that something in the conversation changed, indicating clients should fetch the conversation again | datetime     | NO   |     | 0001-01-01 00:00:00 |       |
| commented |                                                                                                         | datetime     | NO   |     | 0001-01-01 00:00:00 |       |

Indexes
------------

| Name      | Fields    |
| --------- | --------- |
| PRIMARY   | uri-id    |
| owner-id  | owner-id  |
| author-id | author-id |
| causer-id | causer-id |
| received  | received  |
| commented | commented |

Foreign Keys
------------

| Field | Target Table | Target Field |
|-------|--------------|--------------|
| uri-id | [item-uri](help/database/db_item-uri) | id |
| owner-id | [contact](help/database/db_contact) | id |
| author-id | [contact](help/database/db_contact) | id |
| causer-id | [contact](help/database/db_contact) | id |

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