| app | application which generated this item | varchar(255) | NO | | | |
| rendered-hash | | varchar(32) | NO | | | |
| rendered-html | item.body converted to html | mediumtext | YES | | NULL | |
| object-type | ActivityStreams object type | varchar(100) | NO | | | |
| object | JSON encoded object structure unless it is an implied object (normal post) | text | YES | | NULL | |
| target-type | ActivityStreams target type if applicable (URI) | varchar(100) | NO | | | |
| target | JSON encoded target structure if used | text | YES | | NULL | |
| resource-id | Used to link other tables to items, it identifies the linked resource (e.g. photo) and if set must also set resource_type | varchar(32) | NO | | | |
| plink | permalink or URL to a displayable copy of the message at its source | varbinary(383) | NO | | | |