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Performance improvements when displaying local posts

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Michael 2024-04-17 19:16:47 +00:00
parent bae1f63424
commit c82a1ed467
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doc/database/db_post-origin.md Normal file
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Table post-origin
===========
Posts from local users
Fields
------
| Field | Description | Type | Null | Key | Default | Extra |
| ------------- | ------------------------------------------------------------ | ------------------ | ---- | --- | ------------------- | ----- |
| id | | int unsigned | NO | PRI | NULL | |
| uri-id | Id of the item-uri table entry that contains the item uri | int unsigned | NO | | NULL | |
| uid | Owner id which owns this copy of the item | mediumint unsigned | NO | | NULL | |
| parent-uri-id | Id of the item-uri table that contains the parent uri | int unsigned | YES | | NULL | |
| thr-parent-id | Id of the item-uri table that contains the thread parent uri | int unsigned | YES | | NULL | |
| created | Creation timestamp. | datetime | NO | | 0001-01-01 00:00:00 | |
| received | datetime | datetime | NO | | 0001-01-01 00:00:00 | |
| gravity | | tinyint unsigned | NO | | 0 | |
| vid | Id of the verb table entry that contains the activity verbs | smallint unsigned | YES | | NULL | |
| private | 0=public, 1=private, 2=unlisted | tinyint unsigned | NO | | 0 | |
| wall | This item was posted to the wall of uid | boolean | NO | | 0 | |
Indexes
------------
| Name | Fields |
| ----------------- | ------------------- |
| PRIMARY | id |
| uid_uri-id | UNIQUE, uid, uri-id |
| uri-id | uri-id |
| parent-uri-id | parent-uri-id |
| thr-parent-id | thr-parent-id |
| vid | vid |
| parent-uri-id_uid | parent-uri-id, uid |
| uid_wall_received | uid, wall, received |
Foreign Keys
------------
| Field | Target Table | Target Field |
|-------|--------------|--------------|
| uri-id | [item-uri](help/database/db_item-uri) | id |
| uid | [user](help/database/db_user) | uid |
| parent-uri-id | [item-uri](help/database/db_item-uri) | id |
| thr-parent-id | [item-uri](help/database/db_item-uri) | id |
| vid | [verb](help/database/db_verb) | id |
Return to [database documentation](help/database)