Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments |
|---|---|---|---|---|---|---|---|---|
| identifier | BIGINT | 19 | 0 |
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| visit_id | BIGINT | 19 | null |
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| value | VARCHAR | 255 | √ | null |
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| code | VARCHAR | 40 | √ | null |
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