Delete more than 250 requests at a time

Delete more than 250 requests at a time

Is there a way to select and delete more than 250 requests at a time? I understand how to set the incident number back to 1 after deleting them, but I have about 40000 incidents to delete and that might take awhile if I can only select 250 at a time. We are using Postgres SQL. Any suggestions would be appreciated.

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