26 lines
1.0 KiB
MySQL
26 lines
1.0 KiB
MySQL
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-- 添加词汇扩展字段
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-- 为ai_vocabulary表添加同义词、反义词、派生词等字段
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USE ai_english_learning;
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-- 添加扩展字段到词汇表
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ALTER TABLE ai_vocabulary
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ADD COLUMN IF NOT EXISTS synonyms JSON COMMENT '同义词列表 ["happy", "joyful"]',
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ADD COLUMN IF NOT EXISTS antonyms JSON COMMENT '反义词列表 ["sad", "unhappy"]',
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ADD COLUMN IF NOT EXISTS derivatives JSON COMMENT '派生词列表 [{"word": "happiness", "meaning": "幸福"}]',
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ADD COLUMN IF NOT EXISTS collocations JSON COMMENT '词组搭配 [{"phrase": "look forward to", "meaning": "期待"}]',
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ADD COLUMN IF NOT EXISTS word_root TEXT COMMENT '词根信息';
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-- 添加索引
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ALTER TABLE ai_vocabulary
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ADD INDEX idx_phonetic_us (phonetic_us(50)),
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ADD INDEX idx_phonetic_uk (phonetic_uk(50));
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-- 更新现有数据的默认值
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UPDATE ai_vocabulary
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SET
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synonyms = JSON_ARRAY() WHERE synonyms IS NULL,
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antonyms = JSON_ARRAY() WHERE antonyms IS NULL,
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derivatives = JSON_ARRAY() WHERE derivatives IS NULL,
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collocations = JSON_ARRAY() WHERE collocations IS NULL;
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