feat: add initial SQL database schema
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-- 1. 存储模块定义(例如:AI 决定创建一个“线索管理”模块,它的字段定义存这里)
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CREATE TABLE sys_entities (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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entity_code VARCHAR(50) UNIQUE NOT NULL, -- 模块标识,如 'crm_lead'
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entity_name VARCHAR(100) NOT NULL, -- 模块名称,如 '销售线索'
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schema_definition JSONB NOT NULL, -- 核心:存储字段定义的 JSON (类型、标签、校验)
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
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);
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-- 2. 存储动态业务数据(所有的业务数据都进这一张表,靠 entity_id 区分)
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CREATE TABLE sys_dynamic_data (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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entity_id UUID REFERENCES sys_entities(id),
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data JSONB NOT NULL, -- 核心:存储具体的业务字段数据
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
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creator_id VARCHAR(50) -- 预留租户或用户 ID
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);
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-- 3. 存储 AI 会话记忆(LangChain4j 自动持久化对话用)
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CREATE TABLE chat_memory (
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id SERIAL PRIMARY KEY,
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chat_session_id VARCHAR(255) NOT NULL,
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content TEXT NOT NULL, -- 存储对话内容
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created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
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);
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-- 为 JSONB 字段创建 GIN 索引,保证以后千万级数据的查询速度
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CREATE INDEX idx_entity_data ON sys_dynamic_data USING GIN (data);
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