6.12号版本
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34
migration_20260608_add_exclude_stems_and_is_deleted.sql
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34
migration_20260608_add_exclude_stems_and_is_deleted.sql
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-- =============================================================
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-- 数据库迁移脚本:question 表补充缺失列
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-- 版本: V1.1
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-- 日期: 2026-06-08
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-- 说明: question表缺少 exclude_stems 和 is_deleted 列,
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-- 导致 MyBatis-Plus 全字段查询时抛出 SQL 异常
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-- (Unknown column 'exclude_stems' / 'is_deleted')
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-- 对应实体字段: Question.excludeStems, Question.isDeleted
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-- =============================================================
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-- 1. 添加 exclude_stems 列(对应实体 field: excludeStems)
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-- 用于 AI 出题时对题干内容进行去重
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ALTER TABLE `question`
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ADD COLUMN `exclude_stems` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci
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NULL DEFAULT NULL COMMENT '题干内容,用于AI去重'
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AFTER `document_id`;
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-- 2. 添加 is_deleted 列(对应实体 field: isDeleted)
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-- 用于逻辑删除标记
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ALTER TABLE `question`
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ADD COLUMN `is_deleted` int NOT NULL DEFAULT 0
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COMMENT '软删除标志:0表示正常,1表示已删除'
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AFTER `updated_at`;
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-- 3. 为 is_deleted 添加索引(优化按删除状态查询的性能)
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ALTER TABLE `question`
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ADD INDEX `idx_question_is_deleted`(`is_deleted` ASC) USING BTREE;
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-- =============================================================
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-- 回滚脚本(如需回滚请执行以下语句)
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-- =============================================================
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-- ALTER TABLE `question` DROP COLUMN `exclude_stems`;
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-- ALTER TABLE `question` DROP COLUMN `is_deleted`;
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-- ALTER TABLE `question` DROP INDEX `idx_question_is_deleted`;
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