> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-1700-to-1799/e1789.md).

# Error 1789: The slave is connecting using CHANGE MASTER TO MASTER\_AUTO\_POSITION = 1, but the master

| Error Code | SQLSTATE | Error                                    | Description                                                                                                                                                |
| ---------- | -------- | ---------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 1789       | HY000    | ER\_MASTER\_HAS\_PURGED\_REQUIRED\_GTIDS | The slave is connecting using CHANGE MASTER TO MASTER\_AUTO\_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires. |

## Possible Causes and Solutions

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