WeiCHEN
1fc7d0d01f
- Phase 0: 实现服务端回复导出策略矩阵引擎 (replyexport.EvaluatePolicy)、数据库迁移 (2026-09-11-message-export-policy.sql)、SSE done 事件挂载与能力探测 API - Phase 1: 构建前端 ReplyDocumentIR 语法树解析与渲染管道，支持 Markdown / DOCX 文件下载及带格式富文本剪贴板复制 - Phase 2: 实现私密自由文档 (freeform_documents) 领域服务、PostgreSQL 乐观锁版本管理、ACL 隐私隔离、一键共享与右侧栏编辑联动 - 专项修复: 1. 修复后台 API 路由注册并加入双向拉取同步，确保私密保存实时进入我的私密列表 2. 实现轻量回复专属 DOCX 生成与静默下载逻辑 (downloadDocxReply) 3. 将 LaTeX 公式转为标准 MathML 矢量标记，支持粘贴到 Microsoft Word / WPS 自动识别为原生公式
52 lines
2.2 KiB
SQL
52 lines
2.2 KiB
SQL
-- =============================================================================
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-- Migration: 2026-09-11-message-export-policy.sql
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-- Description: 为 chat_messages 新增正文类型、权威导出策略、版本与 SHA256 哈希
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-- =============================================================================
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-- 1. 结构变更：新增消息导出权威列
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ALTER TABLE chat_messages
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ADD COLUMN IF NOT EXISTS content_kind TEXT NOT NULL DEFAULT '',
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ADD COLUMN IF NOT EXISTS export_policy TEXT NOT NULL DEFAULT 'none',
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ADD COLUMN IF NOT EXISTS content_revision INT NOT NULL DEFAULT 1,
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ADD COLUMN IF NOT EXISTS content_sha256 TEXT NOT NULL DEFAULT '';
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-- 2. 导出策略枚举约束检查 (full | copy_only | none)
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM pg_constraint WHERE conname = 'chk_chat_export_policy'
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) THEN
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ALTER TABLE chat_messages
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ADD CONSTRAINT chk_chat_export_policy
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CHECK (export_policy IN ('full', 'copy_only', 'none'));
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END IF;
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END $$;
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-- 3. 索引优化：快速基于消息与版本校验
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CREATE INDEX IF NOT EXISTS idx_chat_messages_export_policy
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ON chat_messages(id, export_policy);
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CREATE EXTENSION IF NOT EXISTS pgcrypto;
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-- 4. 存量消息安全保守回填：旧消息默认为 none，仅纯文本 assistant 消息标记为 copy_only
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UPDATE chat_messages
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SET
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content_kind = CASE
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WHEN role = 'user' THEN 'conversational_text'
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WHEN role = 'system' THEN 'system_notice'
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WHEN role = 'assistant' AND (metadata ? 'interactive_card') THEN 'action_card'
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WHEN role = 'assistant' AND length(trim(content)) > 0 THEN 'document_text'
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ELSE 'conversational_text'
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END,
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export_policy = CASE
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WHEN role = 'assistant' AND NOT (metadata ? 'interactive_card') AND length(trim(content)) >= 10 THEN 'full'
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WHEN role = 'assistant' AND length(trim(content)) > 0 THEN 'copy_only'
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ELSE 'none'
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END,
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content_revision = 1,
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content_sha256 = CASE
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WHEN length(content) > 0 THEN encode(sha256(convert_to(content, 'UTF8')), 'hex')
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ELSE ''
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END
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WHERE export_policy = 'none' AND role = 'assistant' AND length(trim(content)) > 0;
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