21 lines
882 B
MySQL
21 lines
882 B
MySQL
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-- ============================================================
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-- M7-10: ChatScope 旧数据回填
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-- 将 M-CHAT 里程碑前创建的旧会话补全 scope 字段
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-- 可重复执行（idempotent）：只更新 scopeId IS NULL 的记录
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-- ============================================================
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-- 1. 回填 scope 字段
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UPDATE "ChatSession"
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SET
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"scopeType" = 'knowledge_base',
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"scopeId" = "knowledgeBaseId",
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"parentKnowledgeBaseId" = "knowledgeBaseId",
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"createdFrom" = 'legacy_migration',
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"lastMessageAt" = COALESCE("lastMessageAt", "updatedAt")
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WHERE "scopeId" IS NULL
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AND "scopeType" = 'knowledge_base'; -- 默认值
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-- 2. 验证
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-- SELECT COUNT(*) AS backfilled_count FROM "ChatSession" WHERE "createdFrom" = 'legacy_migration';
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-- SELECT id, title, "scopeType", "scopeId", "parentKnowledgeBaseId", "createdFrom" FROM "ChatSession" WHERE "scopeId" IS NULL;
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