Mandatory index added

[friendica.git] / doc / database / db_post-tag.md

diff --git a/doc/database/db_post-tag.md b/doc/database/db_post-tag.md
index 228f27708ddf7fdf1a094552d1cc4c7320e79a3b..7811f32e07d8fae9e4978608fc70c6a1eaee8016 100644 (file)
--- a/doc/database/db_post-tag.md
+++ b/doc/database/db_post-tag.md
@@ -3,6 +3,9 @@ Table post-tag
 
 post relation to tags
 
+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    |       |
@@ -10,4 +13,22 @@ post relation to tags
 | tid    |                                                           | int unsigned     | NO   | PRI | 0       |       |
 | cid    | Contact id of the mentioned public contact                | int unsigned     | NO   | PRI | 0       |       |
 
+Indexes
+------------
+
+| Name    | Fields                 |
+| ------- | ---------------------- |
+| PRIMARY | uri-id, type, tid, cid |
+| tid     | tid                    |
+| cid     | cid                    |
+
+Foreign Keys
+------------
+
+| Field | Target Table | Target Field |
+|-------|--------------|--------------|
+| uri-id | [item-uri](help/database/db_item-uri) | id |
+| tid | [tag](help/database/db_tag) | id |
+| cid | [contact](help/database/db_contact) | id |
+
 Return to [database documentation](help/database)