# Error 1831: Duplicate index defined on the table. This is deprecated and will be disallowed in a fut

| Error Code | SQLSTATE | Error          | Description                                                                                                       |
| ---------- | -------- | -------------- | ----------------------------------------------------------------------------------------------------------------- |
| 1831       | HY000    | ER\_DUP\_INDEX | Duplicate index '%s' defined on the table '%s.%s'. This is deprecated and will be disallowed in a future release. |

## Possible Causes and Solutions

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