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1. Make it so test_random_operations() can accept a NULL to have the function select a random seed. 2. Widen the seed parameter of test_random_operations() to bigint. Without that, it'll be impossible to run the function with a seed which was selected by GetCurrentTimestamp(), and if a randomly selected seed ever results in a failure, we'll likely want to run with the same seed to debug the issue. 3. Report the seed in the error messages in test_random_operations(). If the buildfarm were ever to fail there, we'd certainly want to know what this was. 4. Add CHECK_FOR_INTERRUPTS() to test_random_operations(). Someone might run with a large num_ops and they'd have no way to cancel the query. 5. Minor cosmetic fixes; header order and whitespace issue. To allow #1, the STRICT modifier had to be removed. The additional prechecks were added as I didn't see how else to handle someone passing those parameters as NULL. Author: David Rowley <dgrowleyml@gmail.com> Reviewed-by: Greg Burd <greg@burd.me> Discussion: https://postgr.es/m/CAApHDvrDW9W72vAr7h7XeCu7+Qz-_Vff02Q+RPPuVeM0Qf0MCw@mail.gmail.com