54 lines
2.3 KiB
SQL
54 lines
2.3 KiB
SQL
-- Migration: Create Chat History Tables
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-- Description: Create tables for chat history functionality based on the old web API structure
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-- Date: 2024-01-01
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-- Create chat_sessions table
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CREATE TABLE IF NOT EXISTS chat_sessions (
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id SERIAL PRIMARY KEY,
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session_id VARCHAR(255) NOT NULL UNIQUE,
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user_id INTEGER NOT NULL,
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agent_id VARCHAR(255) NOT NULL,
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title VARCHAR(255) NOT NULL DEFAULT 'Chat Session',
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message_count INTEGER DEFAULT 0,
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status VARCHAR(50) DEFAULT 'active',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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-- Create chat_messages_new table (to avoid conflict with existing chat_messages)
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CREATE TABLE IF NOT EXISTS chat_messages_new (
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id SERIAL PRIMARY KEY,
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session_id VARCHAR(255) NOT NULL,
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message_type VARCHAR(50) NOT NULL CHECK (message_type IN ('user', 'assistant')),
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content TEXT NOT NULL,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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-- Create indexes for better performance
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CREATE INDEX IF NOT EXISTS idx_chat_sessions_user_id ON chat_sessions (user_id);
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CREATE INDEX IF NOT EXISTS idx_chat_sessions_agent_id ON chat_sessions (agent_id);
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CREATE INDEX IF NOT EXISTS idx_chat_sessions_session_id ON chat_sessions (session_id);
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CREATE INDEX IF NOT EXISTS idx_chat_sessions_created_at ON chat_sessions (created_at);
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CREATE INDEX IF NOT EXISTS idx_chat_messages_new_session_id ON chat_messages_new (session_id);
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CREATE INDEX IF NOT EXISTS idx_chat_messages_new_created_at ON chat_messages_new (created_at);
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-- Add foreign key constraints
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ALTER TABLE chat_sessions
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ADD CONSTRAINT fk_chat_sessions_user_id
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE;
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ALTER TABLE chat_messages_new
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ADD CONSTRAINT fk_chat_messages_new_session_id
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FOREIGN KEY (session_id) REFERENCES chat_sessions(session_id) ON DELETE CASCADE;
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-- Insert sample data (optional)
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INSERT INTO chat_sessions (session_id, user_id, agent_id, title, message_count)
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VALUES ('sample-session-123', 1, 'd04bbced-ae93-4fb3-a015-9472e4e5e539', 'Sample Chat Session', 2)
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ON CONFLICT (session_id) DO NOTHING;
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INSERT INTO chat_messages_new (session_id, message_type, content)
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VALUES
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('sample-session-123', 'user', 'Halo, ada yang bisa saya tanyakan?'),
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('sample-session-123', 'assistant', 'Halo! Tentu saja, saya siap membantu Anda dengan pertanyaan apapun.')
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ON CONFLICT DO NOTHING;
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