Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||
|---|---|---|---|---|---|---|---|---|---|---|
| message_id | INT | 10 | √ | null |
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| letter_id | INT | 10 | √ | null |
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Foreign key to the letters table |
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| borrowernumber | INT | 10 | √ | null |
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| subject | MEDIUMTEXT | 16777215 | √ | null |
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| content | MEDIUMTEXT | 16777215 | √ | null |
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| metadata | MEDIUMTEXT | 16777215 | √ | null |
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| letter_code | VARCHAR | 64 | √ | null |
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| message_transport_type | VARCHAR | 20 | null |
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| status | enum('sent', 'pending', 'failed', 'deleted') | 7 | pending |
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| time_queued | TIMESTAMP | 19 | √ | null |
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| updated_on | TIMESTAMP | 19 | CURRENT_TIMESTAMP |
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| to_address | LONGTEXT | 2147483647 | √ | null |
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| from_address | LONGTEXT | 2147483647 | √ | null |
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| reply_address | LONGTEXT | 2147483647 | √ | null |
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| content_type | MEDIUMTEXT | 16777215 | √ | null |
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| failure_code | MEDIUMTEXT | 16777215 | √ | null |
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Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| PRIMARY | Primary key | Asc | message_id |
| borrowernumber | Performance | Asc | borrowernumber |
| letter_fk | Performance | Asc | letter_id |
| message_transport_type | Performance | Asc | message_transport_type |
Relationships
Close relationships within degrees of separation
