Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments |
|---|---|---|---|---|---|---|---|---|
| A | INTEGER | 10 | √ | null |
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| B | INTEGER | 10 | √ | null |
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| T1 | VARCHAR | 255 | √ | null |
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| T2 | VARCHAR | 255 | √ | null |
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| T3 | VARCHAR | 255 | √ | null |
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