Optimize import

drizzle/20260922120323_demonic_rattler/migration.sql

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+CREATE TABLE `RestoreChapterMapping` (
+	`restoreRunId` text NOT NULL,
+	`backupNovelId` integer NOT NULL,
+	`backupChapterId` integer NOT NULL,
+	`restoredNovelId` integer NOT NULL,
+	`restoredChapterId` integer NOT NULL,
+	CONSTRAINT `fk_RestoreChapterMapping_restoredNovelId_Novel_id_fk` FOREIGN KEY (`restoredNovelId`) REFERENCES `Novel`(`id`) ON DELETE CASCADE,
+	CONSTRAINT `fk_RestoreChapterMapping_restoredChapterId_Chapter_id_fk` FOREIGN KEY (`restoredChapterId`) REFERENCES `Chapter`(`id`) ON DELETE CASCADE
+);
+--> statement-breakpoint
+PRAGMA foreign_keys=OFF;--> statement-breakpoint
+CREATE TABLE `__new_Chapter` (
+	`id` integer PRIMARY KEY AUTOINCREMENT,
+	`novelId` integer NOT NULL,
+	`path` text NOT NULL,
+	`name` text NOT NULL,
+	`releaseTime` text,
+	`bookmark` integer DEFAULT false,
+	`unread` integer DEFAULT true,
+	`readTime` text,
+	`isDownloaded` integer DEFAULT false,
+	`updatedTime` text,
+	`chapterNumber` real,
+	`page` text DEFAULT '1',
+	`position` integer DEFAULT 0,
+	`progress` integer,
+	`scanlator` text,
+	`timeSpent` integer DEFAULT 0,
+	CONSTRAINT `fk_Chapter_novelId_Novel_id_fk` FOREIGN KEY (`novelId`) REFERENCES `Novel`(`id`) ON DELETE CASCADE
+);
+--> statement-breakpoint
+-- Preserve the previous AUTOINCREMENT high-water mark across the rebuild.
+CREATE TEMP TABLE `__chapter_sequence` AS
+SELECT COALESCE(MAX(`seq`), 0) AS `seq`
+FROM `sqlite_sequence`
+WHERE `name` = 'Chapter';
+--> statement-breakpoint
+-- Chapters without a novel are invalid legacy data and are intentionally discarded.
+INSERT INTO `__new_Chapter`(`id`, `novelId`, `path`, `name`, `releaseTime`, `bookmark`, `unread`, `readTime`, `isDownloaded`, `updatedTime`, `chapterNumber`, `page`, `position`, `progress`, `scanlator`, `timeSpent`) SELECT `id`, `novelId`, `path`, `name`, `releaseTime`, `bookmark`, `unread`, `readTime`, `isDownloaded`, `updatedTime`, `chapterNumber`, `page`, `position`, `progress`, `scanlator`, `timeSpent` FROM `Chapter` WHERE EXISTS (SELECT 1 FROM `Novel` WHERE `Novel`.`id` = `Chapter`.`novelId`);--> statement-breakpoint
+DROP TABLE `Chapter`;--> statement-breakpoint
+ALTER TABLE `__new_Chapter` RENAME TO `Chapter`;--> statement-breakpoint
+INSERT INTO `sqlite_sequence` (`name`, `seq`)
+SELECT 'Chapter', `seq` FROM `__chapter_sequence`
+WHERE NOT EXISTS (
+	SELECT 1 FROM `sqlite_sequence` WHERE `name` = 'Chapter'
+);
+--> statement-breakpoint
+UPDATE `sqlite_sequence`
+SET `seq` = MAX(`seq`, (SELECT `seq` FROM `__chapter_sequence`))
+WHERE `name` = 'Chapter';
+--> statement-breakpoint
+DROP TABLE `__chapter_sequence`;
+--> statement-breakpoint
+PRAGMA foreign_keys=ON;--> statement-breakpoint
+CREATE UNIQUE INDEX `chapter_novel_path_unique` ON `Chapter` (`novelId`,`path`);--> statement-breakpoint
+CREATE INDEX `chapterNovelIdIndex` ON `Chapter` (`novelId`,`position`,`page`,`id`);--> statement-breakpoint
+CREATE UNIQUE INDEX `restore_chapter_mapping_unique` ON `RestoreChapterMapping` (`restoreRunId`,`backupNovelId`,`backupChapterId`);--> statement-breakpoint
+CREATE INDEX `restore_chapter_mapping_novel_index` ON `RestoreChapterMapping` (`restoreRunId`,`backupNovelId`);