-| Field | Description | Type | Null | Key | Default | Extra |
-| ------------ | ---------------------------------- | ------------ | ---- | --- | ------------------- | ----- |
-| k | horizontal width + url or resource | varchar(255) | NO | PRI | NULL | |
-| v | OEmbed response from site | text | NO | | NULL | |
-| updated | datetime of cache insertion | datetime | NO | MUL | 0001-01-01 00:00:00 | |
-| expire_mode | | int(11) | NO | | 0 | |
+Stores temporary data
+
+Fields
+------
+
+| Field | Description | Type | Null | Key | Default | Extra |
+| ------- | ---------------------------- | -------------- | ---- | --- | ------------------- | ----- |
+| k | cache key | varbinary(255) | NO | PRI | NULL | |
+| v | cached serialized value | mediumtext | YES | | NULL | |
+| expires | datetime of cache expiration | datetime | NO | | 0001-01-01 00:00:00 | |
+| updated | datetime of cache insertion | datetime | NO | | 0001-01-01 00:00:00 | |
+
+Indexes
+------------
+
+| Name | Fields |
+| --------- | ---------- |
+| PRIMARY | k |
+| k_expires | k, expires |
+