friendica-github/doc/database/db_pconfig.md

Table pconfig
===========

personal (per user) configuration storage

Fields
------

| Field | Description | Type               | Null | Key | Default | Extra          |
| ----- | ----------- | ------------------ | ---- | --- | ------- | -------------- |
| id    | Primary key | int unsigned       | NO   | PRI | NULL    | auto_increment |
| uid   | User id     | mediumint unsigned | NO   |     | 0       |                |
| cat   | Category    | varchar(50)        | NO   |     |         |                |
| k     | Key         | varchar(100)       | NO   |     |         |                |
| v     | Value       | mediumtext         | YES  |     | NULL    |                |

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

| Name      | Fields              |
| --------- | ------------------- |
| PRIMARY   | id                  |
| uid_cat_k | UNIQUE, uid, cat, k |

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

| Field | Target Table | Target Field |
|-------|--------------|--------------|
| uid | [user](help/database/db_user) | uid |

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