wizardchen
115 lines
3.8 KiB
SQL
115 lines
3.8 KiB
SQL
-- 增量迁移：添加 agent_config 字段（如果不存在）
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-- 创建时间：2025-11-03
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-- 目的：为旧版本数据库添加 agent_config 支持
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-- 注意：新数据库可能已经有这些字段（通过00-init-db.sql），使用 IF NOT EXISTS 确保兼容
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-- ============================================
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-- 1. 为 tenants 表添加 agent_config
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-- ============================================
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-- 检查并添加字段
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SET @dbname = DATABASE();
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SET @tablename = 'tenants';
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SET @columnname = 'agent_config';
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE
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TABLE_SCHEMA = @dbname
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AND TABLE_NAME = @tablename
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AND COLUMN_NAME = @columnname
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) > 0,
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'SELECT 1', -- 字段已存在，不做任何操作
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CONCAT('ALTER TABLE ', @tablename, ' ADD COLUMN ', @columnname, ' JSON DEFAULT NULL COMMENT ''Tenant-level agent configuration in JSON format''')
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));
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PREPARE alterIfNotExists FROM @preparedStatement;
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EXECUTE alterIfNotExists;
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DEALLOCATE PREPARE alterIfNotExists;
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-- ============================================
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-- 2. 为 sessions 表添加 agent_config
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-- ============================================
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SET @dbname = DATABASE();
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SET @tablename = 'sessions';
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SET @columnname = 'agent_config';
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE
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TABLE_SCHEMA = @dbname
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AND TABLE_NAME = @tablename
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AND COLUMN_NAME = @columnname
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) > 0,
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'SELECT 1', -- 字段已存在，不做任何操作
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CONCAT('ALTER TABLE ', @tablename, ' ADD COLUMN ', @columnname, ' JSON DEFAULT NULL COMMENT ''Session-level agent configuration in JSON format''')
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));
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PREPARE alterIfNotExists FROM @preparedStatement;
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EXECUTE alterIfNotExists;
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DEALLOCATE PREPARE alterIfNotExists;
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-- ============================================
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-- 3. 为 sessions 表添加 context_config
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-- ============================================
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SET @dbname = DATABASE();
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SET @tablename = 'sessions';
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SET @columnname = 'context_config';
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE
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TABLE_SCHEMA = @dbname
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AND TABLE_NAME = @tablename
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AND COLUMN_NAME = @columnname
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) > 0,
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'SELECT 1', -- 字段已存在，不做任何操作
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CONCAT('ALTER TABLE ', @tablename, ' ADD COLUMN ', @columnname, ' JSON DEFAULT NULL COMMENT ''LLM context management configuration (separate from message storage)''')
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));
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PREPARE alterIfNotExists FROM @preparedStatement;
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EXECUTE alterIfNotExists;
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DEALLOCATE PREPARE alterIfNotExists;
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-- ============================================
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-- 4. 为 messages 表添加 agent_steps
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-- ============================================
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SET @dbname = DATABASE();
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SET @tablename = 'messages';
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SET @columnname = 'agent_steps';
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE
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TABLE_SCHEMA = @dbname
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AND TABLE_NAME = @tablename
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AND COLUMN_NAME = @columnname
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) > 0,
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'SELECT 1', -- 字段已存在，不做任何操作
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CONCAT('ALTER TABLE ', @tablename, ' ADD COLUMN ', @columnname, ' JSON DEFAULT NULL COMMENT ''Agent execution steps (reasoning process and tool calls)''')
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));
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PREPARE alterIfNotExists FROM @preparedStatement;
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EXECUTE alterIfNotExists;
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DEALLOCATE PREPARE alterIfNotExists;
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-- ============================================
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-- 验证：显示所有表的结构
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-- ============================================
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SELECT 'Verifying tenants table...' as status;
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SHOW COLUMNS FROM tenants LIKE 'agent_config';
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SELECT 'Verifying sessions table...' as status;
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SHOW COLUMNS FROM sessions LIKE 'agent_config';
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SHOW COLUMNS FROM sessions LIKE 'context_config';
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SELECT 'Verifying messages table...' as status;
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SHOW COLUMNS FROM messages LIKE 'agent_steps';
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SELECT 'Migration completed successfully!' as status;
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