CREATE TABLE `workout_sessions` (
	`id` text PRIMARY KEY NOT NULL,
	`workout_id` text,
	`name` text,
	`pool_length` real DEFAULT 25 NOT NULL,
	`started_at` text NOT NULL,
	`finished_at` text,
	`total_distance` integer,
	`total_duration` real,
	`calories` real,
	`avg_heart_rate` integer,
	`source` text DEFAULT 'manual' NOT NULL,
	FOREIGN KEY (`workout_id`) REFERENCES `workouts`(`id`) ON UPDATE no action ON DELETE no action
);
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INSERT INTO `workout_sessions` (`id`, `workout_id`, `name`, `pool_length`, `started_at`, `finished_at`, `total_distance`, `total_duration`, `calories`, `avg_heart_rate`, `source`)
SELECT `id`, `id`, `name`, `pool_length`, `started_at`, `finished_at`, `total_distance`, `total_duration`, `calories`, `avg_heart_rate`, `source`
FROM `workouts`
WHERE `finished_at` IS NOT NULL;
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ALTER TABLE `laps` RENAME COLUMN `workout_id` TO `session_id`;
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ALTER TABLE `workouts` DROP COLUMN `started_at`;
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ALTER TABLE `workouts` DROP COLUMN `finished_at`;
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ALTER TABLE `workouts` DROP COLUMN `total_distance`;
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ALTER TABLE `workouts` DROP COLUMN `total_duration`;
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ALTER TABLE `workouts` DROP COLUMN `calories`;
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ALTER TABLE `workouts` DROP COLUMN `avg_heart_rate`;
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ALTER TABLE `workouts` DROP COLUMN `source`;