get_table_index
Retrieve table indexes in a MySQL database by specifying table names, enabling efficient multi-table queries for database optimization and analysis.
Instructions
根据表名搜索数据库中对应的表索引,支持多表查询
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| text | Yes | 要搜索的表名 |
Implementation Reference
- The run_tool method implements the core execution logic: splits table names from 'text' input, builds SQL query to select indexes from information_schema.STATISTICS, executes it using the ExecuteSQL tool, and returns results or error.async def run_tool(self, arguments: Dict[str, Any]) -> Sequence[TextContent]: """获取指定表的索引信息 参数: text (str): 要查询的表名，多个表名以逗号分隔 返回: list[TextContent]: 包含查询结果的TextContent列表 - 返回表的索引名、索引字段、索引类型等信息 - 结果按表名、索引名和索引顺序排序 - 结果以CSV格式返回，包含列名和数据 """ try: if "text" not in arguments: raise ValueError("缺少查询语句") text = arguments["text"] config = get_db_config() execute_sql = ExecuteSQL() # 将输入的表名按逗号分割成列表 table_names = [name.strip() for name in text.split(',')] # 构建IN条件 table_condition = "','".join(table_names) sql = "SELECT TABLE_NAME, INDEX_NAME, COLUMN_NAME, SEQ_IN_INDEX, NON_UNIQUE, INDEX_TYPE " sql += f"FROM information_schema.STATISTICS WHERE TABLE_SCHEMA = '{config['database']}' " sql += f"AND TABLE_NAME IN ('{table_condition}') ORDER BY TABLE_NAME, INDEX_NAME, SEQ_IN_INDEX;" return await execute_sql.run_tool({"query": sql}) except Exception as e: return [TextContent(type="text", text=f"执行查询时出错: {str(e)}")]
- Defines the tool's input schema: an object requiring a 'text' string parameter for the table name(s) to search.def get_tool_description(self) -> Tool: return Tool( name=self.name, description=self.description, inputSchema={ "type": "object", "properties": { "text": { "type": "string", "description": "要搜索的表名" } }, "required": ["text"] } )
- src/mysql_mcp_server_pro/handles/base.py:56-61 (registration)BaseHandler.__init_subclass__ automatically registers any subclass (like GetTableIndex) to the ToolRegistry when the class is defined.def __init_subclass__(cls, **kwargs): """子类初始化时自动注册到工具注册表""" super().__init_subclass__(**kwargs) if cls.name: # 只注册有名称的工具 ToolRegistry.register(cls)
- src/mysql_mcp_server_pro/handles/__init__.py:1-23 (registration)Imports GetTableIndex class (triggering automatic registration) and includes it in __all__ for easy access.from .execute_sql import ExecuteSQL from .get_chinese_initials import GetChineseInitials from .get_table_desc import GetTableDesc from .get_table_index import GetTableIndex from .get_table_lock import GetTableLock from .get_table_name import GetTableName from .get_db_health_running import GetDBHealthRunning from .get_db_health_index_usage import GetDBHealthIndexUsage from .use_prompt_queryTableData import UsePromptQueryTableData from .optimize_sql import OptimizeSql __all__ = [ "ExecuteSQL", "GetChineseInitials", "GetTableDesc", "GetTableIndex", "GetTableLock", "GetTableName", "GetDBHealthRunning", "GetDBHealthIndexUsage", "UsePromptQueryTableData", "OptimizeSql" ]