| PKID | bigint | plain | | | Comment ID |
| creator | integer | plain | | users.ID | Creator user ID (defaults to authenticated user on creation) |
| creationdate | bigint | plain | | | Default: date_part('epoch', now())Creation date and time as a Unix timestamp (defaults to current date and time on creation) |
| lastmodified | bigint | plain | | | Default: EXTRACT(epoch FROM now())Last modification date and time as a Unix timestamp (auto-reset on modification) |
| record | bigint | plain | | records.ID | Record ID (**dependency**) |
| date | bigint | plain | | | Default: EXTRACT(epoch FROM now())Designated date and time as a Unix timestamp (defaults to current date and time on creation) |
| sender | text | main | | | Default: ''Sender |
| text | text | extended | | | Default: ''Comment text (Markdown for rich text representation) |
| meta | json | extended | | | JSON-encoded metadata (object) |