CREATE TABLE `provisioner_workers` (
	`tenant_id` text PRIMARY KEY NOT NULL,
	`worker_id` text NOT NULL,
	`poll_count` integer DEFAULT 1 NOT NULL,
	`last_seen_at` text NOT NULL,
	`created_at` text DEFAULT CURRENT_TIMESTAMP NOT NULL,
	`updated_at` text DEFAULT CURRENT_TIMESTAMP NOT NULL,
	FOREIGN KEY (`tenant_id`) REFERENCES `tenant_instances`(`id`) ON UPDATE no action ON DELETE no action
);