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88 lines
3.9 KiB
88 lines
3.9 KiB
-- 03-memory-tables.sql
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-- 记忆管理模块：PostgreSQL 主存储 + Redis 缓存层
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-- 幂等执行，IF NOT EXISTS
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-- pgvector 扩展（容器启动时已通过 docker-compose entrypoint 自动安装）
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CREATE EXTENSION IF NOT EXISTS vector;
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-- ============================================================
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-- L0: 原始对话消息
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-- ============================================================
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CREATE TABLE IF NOT EXISTS memory_messages (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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flow_id UUID NOT NULL REFERENCES flow_definitions(id) ON DELETE CASCADE,
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session_id UUID NOT NULL,
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role VARCHAR(20) NOT NULL,
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content TEXT NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX IF NOT EXISTS idx_memory_messages_session ON memory_messages(user_id, flow_id, session_id, created_at DESC);
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CREATE INDEX IF NOT EXISTS idx_memory_messages_user_flow ON memory_messages(user_id, flow_id, created_at DESC);
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-- ============================================================
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-- L1: 结构化记忆原子
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-- ============================================================
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CREATE TABLE IF NOT EXISTS memory_atoms (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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flow_id UUID REFERENCES flow_definitions(id) ON DELETE SET NULL,
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atom_type VARCHAR(20) NOT NULL,
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content TEXT NOT NULL,
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priority SMALLINT DEFAULT 50,
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source_session_id UUID,
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metadata JSONB DEFAULT '{}',
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embedding vector(1536),
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX IF NOT EXISTS idx_memory_atoms_user ON memory_atoms(user_id, atom_type, priority DESC);
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CREATE INDEX IF NOT EXISTS idx_memory_atoms_embedding ON memory_atoms USING ivfflat (embedding vector_cosine_ops) WITH (lists = 100);
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-- ============================================================
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-- L2: 场景块
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-- ============================================================
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CREATE TABLE IF NOT EXISTS memory_scenes (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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flow_id UUID REFERENCES flow_definitions(id) ON DELETE SET NULL,
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scene_name VARCHAR(200) NOT NULL,
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summary TEXT NOT NULL,
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heat INTEGER DEFAULT 0,
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content JSONB DEFAULT '{}',
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE INDEX IF NOT EXISTS idx_memory_scenes_user ON memory_scenes(user_id, flow_id, heat DESC);
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-- ============================================================
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-- L3: 用户画像
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-- ============================================================
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CREATE TABLE IF NOT EXISTS memory_personas (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL UNIQUE REFERENCES users(id) ON DELETE CASCADE,
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content JSONB NOT NULL DEFAULT '{}',
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raw_text TEXT DEFAULT '',
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version INTEGER DEFAULT 1,
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updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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-- ============================================================
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-- 会话元数据
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-- ============================================================
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CREATE TABLE IF NOT EXISTS memory_sessions (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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flow_id UUID NOT NULL REFERENCES flow_definitions(id) ON DELETE CASCADE,
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session_id UUID NOT NULL,
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flow_name VARCHAR(200) DEFAULT '',
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message_count INTEGER DEFAULT 0,
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last_active_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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UNIQUE(user_id, flow_id, session_id)
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);
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CREATE INDEX IF NOT EXISTS idx_memory_sessions_user ON memory_sessions(user_id, last_active_at DESC);
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