{"id":47,"date":"2026-03-03T11:43:57","date_gmt":"2026-03-03T03:43:57","guid":{"rendered":"https:\/\/sunsyblog.cn\/?p=47"},"modified":"2026-03-03T11:44:47","modified_gmt":"2026-03-03T03:44:47","slug":"text-to-sql%ef%bc%8c%e5%88%9d%e6%ac%a1%e5%b0%9d%e8%af%95multi-agent%e7%b3%bb%e7%bb%9f%e6%9e%84%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/sunsyblog.cn\/index.php\/2026\/03\/03\/text-to-sql%ef%bc%8c%e5%88%9d%e6%ac%a1%e5%b0%9d%e8%af%95multi-agent%e7%b3%bb%e7%bb%9f%e6%9e%84%e5%bb%ba\/","title":{"rendered":"Text to SQL\uff0c\u521d\u6b21\u5c1d\u8bd5Multi-Agent\u7cfb\u7edf\u6784\u5efa"},"content":{"rendered":"\n<p>\u8fd9\u662f\u672c\u4eba\u5728\u524d\u6bb5\u65f6\u95f4\u521d\u6b21\u63a5\u89e6\u591a\u667a\u80fd\u4f53\u6280\u672f\u7684\u4e00\u6b21\u5b9e\u8df5\uff0c\u589e\u957f\u4e86\u8bb8\u591a\u89c1\u8bc6\uff0c\u5728\u6b64\u8bb0\u5f55\u4e00\u4e0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4efb\u52a1\u9700\u6c42<\/h2>\n\n\n\n<div class=\"wp-block-uagb-image uagb-block-89b5715e wp-block-uagb-image--layout-default wp-block-uagb-image--effect-static wp-block-uagb-image--align-none\"><figure class=\"wp-block-uagb-image__figure\"><img decoding=\"async\" srcset=\"https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772452738-text2sql-1024x292.png ,https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772452738-text2sql.png 780w, https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772452738-text2sql.png 360w\" sizes=\"auto, (max-width: 480px) 150px\" src=\"https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772452738-text2sql-1024x292.png\" alt=\"\" class=\"uag-image-48\" width=\"1426\" height=\"407\" title=\"text2sql\" loading=\"lazy\" role=\"img\"\/><\/figure><\/div>\n\n\n\n<p>\u8fd9\u662f2025\u5e74\u817e\u8baf\u6e38\u620f\u7b97\u6cd5\u5927\u8d5b\u6570\u667a\u51b3\u7b56\u79d1\u5b66\u8d5b\u9053\u7684\u9898\u76ee\uff0c\u5177\u4f53\u9700\u6c42\u4e3a\u901a\u8fc7\u7528\u6237\u63d0\u51fa\u7684\u9700\u6c42\uff08\u81ea\u7136\u8bed\u8a00\u6587\u5b57\uff09\uff0c\u81ea\u52a8\u751f\u6210SQL\u8bed\u53e5\u5b9e\u73b0\u7528\u6237\u7684\u9700\u6c42\uff0c\u5b9e\u73b0Text to SQL\u3002<br>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>##\u8f93\u5165\u95ee\u9898\u683c\u5f0f\u4e3a\uff1a\n{\n    \"sql_id\": \"sql_3\",\n    \"question\": \"\u7edf\u8ba12025\u5e741\u6708\u52c7\u8005\u76df\u7ea6\u7aef\u6e38\u6d3b\u8dc3\u73a9\u5bb6\u4ea4\u53c9\u5ce1\u8c37\u7aef\u6e38\u53ca\u624b\u6e38\u6d3b\u8dc3\u73a9\u5bb6\\n\u8f93\u51fa\uff1a\u73a9\u5bb6gplayerid\",\n    \"\u590d\u6742\u5ea6\": \"\u7b80\u5355\",\n    \"table_list\": &#91;\n        \"dws_argothek_oss_login_di\",\n        \"dim_argothek_gplayerid2qqwxid_df\",\n        \"dws_mgamejp_login_user_activity_di\"\n      ],\n    \"knowledge\": \"\u5ce1\u8c37\u7b5b\u9009\u903b\u8f91:\\nsgamecode = \\\"initiatived\\\" -- \u7b5b\u9009\u5ce1\u8c37\u6e38\u620f\\nand saccounttype = \\\"-100\\\" -- \u8d26\u53f7\u4f53\u7cfb\uff0c\u53d6-100\u8868\u793a\u6c47\u603b\\nand suseridtype in (\\\"qq\\\", \\\"wxid\\\") -- \u8d26\u53f7\u7c7b\u578b\uff0c\u53d6qq\u6216wxid\\nand splattype in (\\\"-100\\\", \\\"PC\\\") -- \u5ce1\u8c37\u624b\u6e38\u73a9\u5bb6\u53caPC\u7aef\u73a9\u5bb6\\nand splat = \\\"-100\\\" -- \u5199\u6b7b\u4e3a-100\"\n    },<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>##\u5f97\u5230\u8f93\u51fa\u7ed3\u679c\n{\n\"sql_id\": \"sql_3\",\n\"sql\": \"SELECT DISTINCT df.vgameappid AS gplayerid\\nFROM dim_argothek_gplayerid2qqwxid_df df\\nJOIN dws_argothek_oss_login_di oss ON df.iuserid = oss.iuserid\\nJOIN dws_mgamejp_login_user_activity_di mgame ON df.suserid = mgame.suserid\\nWHERE \\n oss.statis_date BETWEEN 20250101 AND 20250131\\n AND mgame.dtstatdate BETWEEN 20250101 AND 20250131\\n AND mgame.sgamecode = 'initiatived'\\n AND mgame.saccounttype = '-100'\\n AND mgame.splattype IN ('-100', 'PC')\\n AND mgame.splat = '-100'\\n AND mgame.suseridtype IN ('qq', 'wxid');\",\n\"result\": &#91;\n{\n\"gplayerid\": \"app123\"\n}\n]\n},<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">BaseLine\u65b9\u6848<\/h2>\n\n\n\n<p>\u5b98\u65b9\u7ed9\u7684baseline\u4f7f\u7528workflow\u5b9e\u73b0\uff0cworkflow\u770b\u8d77\u6765\u6709\u70b9\u50cf\u7ed8\u5236\u6d41\u7a0b\u56fe\u5e76\u5bf9\u6a21\u5757\u8fdb\u884c\u7f16\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2365\" height=\"685\" src=\"https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772454675-baseline.png\" alt=\"\" class=\"wp-image-51\" srcset=\"https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772454675-baseline.png 2365w, https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772454675-baseline-300x87.png 300w, https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772454675-baseline-1024x297.png 1024w, https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772454675-baseline-768x222.png 768w, https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772454675-baseline-1536x445.png 1536w, https:\/\/sunsyblog.cn\/wp-content\/uploads\/2026\/03\/1772454675-baseline-2048x593.png 2048w\" sizes=\"auto, (max-width: 2365px) 100vw, 2365px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u672c\u8bbe\u8ba1\u65b9\u6848<\/h2>\n\n\n\n<p>\u57fa\u4e8eLangGraph\u6784\u5efaMulti-Agent,\u4e3b\u4f53\u90e8\u5206\u6709SQL\u751f\u6210Agent\u3001SQL\u6267\u884c\u4e0e\u4fee\u6b63Agent\u3001SQL\u9009\u62e9Agent\uff0c\u5c06agent\u4e0e\u5de5\u4f5c\u6d41\u8fdb\u884c\u878d\u5408\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Agent \u589e\u5f3a\u5de5\u4f5c\u6d41<\/strong><br>\u5728\u4f20\u7edf\u5de5\u4f5c\u6d41\u4e2d\u5d4c\u5165 Agent\uff0c\u53ef\u4f7f\u67d0\u4e9b\u6b65\u9aa4\u66f4\u5177\u667a\u80fd\u6027\u3002\u4f8b\u5982\u5728\u6587\u6863\u5ba1\u6838\u5de5\u4f5c\u6d41\u4e2d\uff0c\u539f\u672c\u7684\u4eba\u5de5\u5ba1\u6838\u6b65\u9aa4\u53ef\u5f15\u5165\u667a\u80fd\u5ba1\u6838 Agent\u3002\u8be5 Agent \u80fd\u591f\u5229\u7528\u81ea\u7136\u8bed\u8a00\u5904\u7406\u6280\u672f\u81ea\u52a8\u5206\u6790\u6587\u6863\u5185\u5bb9\uff0c\u68c0\u67e5\u8bed\u6cd5\u9519\u8bef\u3001\u903b\u8f91\u4e00\u81f4\u6027\u7b49\u95ee\u9898\uff0c\u5e76\u7ed9\u51fa\u521d\u6b65\u5ba1\u6838\u5efa\u8bae\uff0c\u5927\u5e45\u63d0\u9ad8\u5ba1\u6838\u6548\u7387\u4e0e\u51c6\u786e\u6027\u3002<\/li>\n\n\n\n<li><strong>\u5de5\u4f5c\u6d41\u534f\u8c03\u591a\u4e2a Agent<\/strong><br>\u591a\u4e2a Agent \u53ef\u4ee5\u88ab\u7ec4\u7ec7\u6210\u4e00\u4e2a\u5de5\u4f5c\u6d41\uff0c\u5404\u81ea\u627f\u62c5\u4e0d\u540c\u7684\u4efb\u52a1\uff0c\u901a\u8fc7\u5de5\u4f5c\u6d41\u6765\u534f\u8c03\u5b83\u4eec\u4e4b\u95f4\u7684\u534f\u4f5c\u5173\u7cfb\u3002\u6bd4\u5982\u5728\u590d\u6742\u7684\u9879\u76ee\u7ba1\u7406\u573a\u666f\u4e2d\uff0c\u6709\u8d1f\u8d23\u9700\u6c42\u5206\u6790\u7684 Agent\u3001\u8d1f\u8d23\u8d44\u6e90\u5206\u914d\u7684 Agent\u3001\u8d1f\u8d23\u8fdb\u5ea6\u8ddf\u8e2a\u7684 Agent \u7b49\u3002\u901a\u8fc7\u5de5\u4f5c\u6d41\u5c06\u8fd9\u4e9b Agent \u7684\u5de5\u4f5c\u6709\u5e8f\u7f16\u6392\uff0c\u660e\u786e\u5b83\u4eec\u4e4b\u95f4\u7684\u8f93\u5165\u8f93\u51fa\u5173\u7cfb\u548c\u6267\u884c\u987a\u5e8f\uff0c\u4ece\u800c\u5b9e\u73b0\u6574\u4e2a\u9879\u76ee\u7684\u9ad8\u6548\u7ba1\u7406\u3002<\/li>\n\n\n\n<li><strong>\u4f18\u52bf\u4e92\u8865\u63d0\u5347\u6548\u7387<\/strong><br>\u5de5\u4f5c\u6d41\u63d0\u4f9b\u4e86\u6e05\u6670\u7684\u6d41\u7a0b\u6846\u67b6\u548c\u7a33\u5b9a\u6027\uff0c\u786e\u4fdd\u4efb\u52a1\u6309\u7167\u4e00\u5b9a\u89c4\u5219\u548c\u987a\u5e8f\u6267\u884c\uff1b\u800c Agent \u5219\u4e3a\u7cfb\u7edf\u5e26\u6765\u4e86\u667a\u80fd\u6027\u548c\u7075\u6d3b\u6027\uff0c\u80fd\u591f\u5904\u7406\u590d\u6742\u51b3\u7b56\u548c\u73af\u5883\u53d8\u5316\u3002\u4e24\u8005\u7ed3\u5408\uff0c\u53ef\u4f7f\u7cfb\u7edf\u65e2\u5177\u6709\u53ef\u9884\u6d4b\u6027\u548c\u53ef\u63a7\u6027\uff0c\u53c8\u5177\u5907\u5e94\u5bf9\u590d\u6742\u60c5\u51b5\u7684\u80fd\u529b\uff0c\u8fdb\u800c\u63d0\u5347\u6574\u4f53\u5de5\u4f5c\u6548\u7387\u548c\u8d28\u91cf\u3002\u4f8b\u5982\u5728\u7535\u5546\u8ba2\u5355\u5904\u7406\u7cfb\u7edf\u4e2d\uff0c\u5de5\u4f5c\u6d41\u8d1f\u8d23\u7ba1\u7406\u4ece\u8ba2\u5355\u751f\u6210\u5230\u53d1\u8d27\u7684\u6574\u4f53\u6d41\u7a0b\uff0c\u800c\u5728\u5176\u4e2d\u7684\u5ba2\u670d\u73af\u8282\uff0c\u53ef\u5f15\u5165\u667a\u80fd\u5ba2\u670d Agent \u6765\u5904\u7406\u7528\u6237\u7684\u54a8\u8be2\u548c\u6295\u8bc9\uff0c\u5b9e\u73b0\u4e86\u6d41\u7a0b\u7ba1\u7406\u4e0e\u667a\u80fd\u670d\u52a1\u7684\u6709\u673a\u7ed3\u5408\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>from langgraph.graph import StateGraph, START, END\nfrom nodes import *\nfrom state import GraphState\nimport sys\nimport os\n\n# \u83b7\u53d6\u9879\u76ee\u6839\u76ee\u5f55\u7684\u7edd\u5bf9\u8def\u5f84\ncurrent_dir = os.path.dirname(os.path.abspath(__file__))\nproject_root = os.path.abspath(os.path.join(current_dir, '..\/..'))\n\n# \u6dfb\u52a0\u9879\u76ee\u6839\u76ee\u5f55\u5230Python\u8def\u5f84\nif project_root not in sys.path:\n    sys.path.insert(0, project_root)\n\n# \u73b0\u5728\u53ef\u4ee5\u5bfc\u5165\n# from ssy.langgraph_agent_V3_1.nodes import business_understanding_node\n\n\ndef create_multiagents_workflow():\n    \"\"\"\u521b\u5efa\u591a\u667a\u80fd\u4f53\u5de5\u4f5c\u6d41\"\"\"\n    \n    workflow = StateGraph(GraphState)\n\n    # \u6dfb\u52a0\u6240\u6709\u8282\u70b9\n    workflow.add_node(\"business_understanding\", business_understanding_node)\n    workflow.add_node(\"sql_generation\", sql_generation_node)\n    workflow.add_node(\"sql_execution_node\", sql_execution_node)\n    workflow.add_node(\"sql_selection\", sql_selection_node)\n\n    # \u5b9a\u4e49\u5de5\u4f5c\u6d41\n    workflow.set_entry_point(\"business_understanding\")\n\n    # \u5355\u7ebf\u8fde\u63a5\n    workflow.add_edge(START, \"business_understanding\")\n    workflow.add_edge(\"business_understanding\", \"sql_generation\")\n    workflow.add_edge(\"sql_generation\", \"sql_execution_node\")\n    workflow.add_edge(\"sql_execution_node\", \"sql_selection\")\n\n    def should_continue_iteration(state: GraphState) -> str:\n        \"\"\"\u5224\u65ad\u662f\u5426\u7ee7\u7eed\u8fed\u4ee3\"\"\"\n        iteration_count = state&#91;\"episode\"]\n        max_iterations = state&#91;\"max_episode\"]\n        \n        # \u68c0\u67e5\u662f\u5426\u8fbe\u5230\u6700\u5927\u8fed\u4ee3\u6b21\u6570\n        if iteration_count >= max_iterations:\n            print(f\"\ud83d\uded1 \u8fbe\u5230\u6700\u5927\u8fed\u4ee3\u6b21\u6570({max_iterations})\uff0c\u505c\u6b62\u8fed\u4ee3\")\n            return \"end\"\n        \n        print(f\"\ud83d\udd04 \u7b2c{iteration_count + 1}\u8f6e\u8fed\u4ee3\u7ee7\u7eed...\")\n        return \"continue\"\n    # \u6761\u4ef6\u8fb9\n    workflow.add_conditional_edges(\n        \"sql_selection\",\n        should_continue_iteration,  # \u5224\u65ad\u51fd\u6570\n        {\n            \"continue\": \"sql_generation\",  # \u7ee7\u7eed\u751f\u6210\n            \"end\": END         # \u7ed3\u675f\u8fed\u4ee3\n        }\n    )\n\n    return workflow.compile()\n\n\n# \u521b\u5efa\u5e76\u5bfc\u51fa\u5de5\u4f5c\u6d41\nworkflow = create_multiagents_workflow()<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u6838\u5fc3\u6a21\u5757\u89e3\u6790<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">SQL \u751f\u6210\u8282\u70b9 (<code>sql_generation_node<\/code>)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5f02\u6b65\u5e76\u53d1\u751f\u6210<\/strong>\uff1a\u5229\u7528 <code>asyncio.gather<\/code> \u5e76\u53d1\u8c03\u7528\u591a\u4e2a\u6a21\u578b\uff08\u5982 DeepSeek-Reasoner, Doubao-Thinking \u7b49\uff09\u4ee5\u53ca\u4e0d\u540c\u6e29\u5ea6\u53c2\u6570\uff08<code>temperatures: [0, 0.188, 0.588]<\/code>\uff09\uff0c\u4e00\u6b21\u6027\u751f\u6210\u591a\u4e2a\u98ce\u683c\u548c\u601d\u8def\u7684\u5019\u9009 SQL\u3002<\/li>\n\n\n\n<li><strong>\u4e0a\u4e0b\u6587\u6ce8\u5165<\/strong>\uff1a\u8f93\u5165\u4e0d\u4ec5\u5305\u542b\u8868\u7ed3\u6784\uff08DDL \u8f6c Markdown\uff09\uff0c\u8fd8\u5305\u542b\u4e86\u4e1a\u52a1\u77e5\u8bc6\uff08<code>knowledge<\/code>\uff09\u3001\u901a\u7528\u89c4\u5219\uff08<code>common_knowledge<\/code>\uff09\u3001\u5c11\u91cf\u4f18\u8d28\u6837\u672c\uff08<code>golden_sql<\/code>\uff09\u4ee5\u53ca\u7528\u4e8e\u8f85\u52a9\u7406\u89e3\u7684\u63d2\u5165\u6570\u636e\uff08<code>insert_data_info<\/code>\uff09\u3002<\/li>\n\n\n\n<li><strong>\u8fed\u4ee3\u4f18\u5316<\/strong>\uff1a\u5982\u679c\u8fd9\u4e0d\u662f\u7b2c\u4e00\u8f6e\uff08<code>episode > 0<\/code>\uff09\uff0c\u4f1a\u5c06\u4e0a\u4e00\u8f6e\u88c1\u5224\u6a21\u578b\u7684\u4fee\u6539\u5efa\u8bae\uff08<code>impromvements<\/code>\uff09\u6ce8\u5165 Prompt\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">SQL \u6267\u884c\u4e0e\u81ea\u4fee\u6b63\u8282\u70b9 (<code>sql_execution_node<\/code>)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u771f\u5b9e\u6267\u884c\u5f15\u64ce<\/strong>\uff1a\u8c03\u7528 <code>sql_exe.py<\/code> \u4e2d\u7684 <code>execute_sql_with_pymysql<\/code> \u8fde\u63a5\u771f\u5b9e\u7684 StarRocks\/MySQL \u6570\u636e\u5e93\u6267\u884c\u751f\u6210\u7684 SQL\u3002<\/li>\n\n\n\n<li><strong>\u5185\u90e8\u4fee\u6b63\u5faa\u73af (Self-Correction)<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u7cfb\u7edf\u68c0\u67e5\u6bcf\u4e2a\u5019\u9009 SQL \u7684\u6267\u884c\u72b6\u6001\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u62a5\u9519\u7684 SQL\uff08<code>execution_success == False<\/code>\uff09\uff0c\u7cfb\u7edf\u4f1a\u5c06<strong>\u9519\u8bef\u4fe1\u606f<\/strong>\u548c<strong>\u539f SQL<\/strong> \u53d1\u9001\u7ed9 LLM \u8fdb\u884c\u4fee\u6b63\uff08<code>SQL_CORRECTION_USER_PROMPT<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u4fee\u6b63\u5faa\u73af\u6700\u591a\u6267\u884c <code>MAX_FIX_NUMB = 5<\/code> \u6b21\uff0c\u6781\u5927\u63d0\u9ad8\u4e86\u6700\u7ec8\u53ef\u7528\u5019\u9009 SQL \u7684\u6570\u91cf\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">SQL \u88c1\u5224\u9009\u62e9\u8282\u70b9 (<code>sql_selection_node<\/code>)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u667a\u80fd\u4f53\u8bc4\u59d4<\/strong>\uff1a\u4f7f\u7528\u80fd\u529b\u6781\u5f3a\u7684\u6a21\u578b\u4f5c\u4e3a\u88c1\u5224\u3002<\/li>\n\n\n\n<li><strong>\u591a\u7ef4\u8bc4\u4f30\u6807\u51c6<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li><strong>\u6267\u884c\u6210\u529f\u6027<\/strong>\uff1a\u5c4f\u853d\u8bed\u6cd5\u9519\u8bef\u7684 SQL\u3002<\/li>\n\n\n\n<li><strong>Schema \u4f9d\u4ece\u6027<\/strong>\uff1a\u4e25\u683c\u68c0\u67e5\u5b57\u6bb5\u540d\u548c\u8868\u540d\u3002<\/li>\n\n\n\n<li><strong>\u8f93\u51fa\u5217\u5339\u914d<\/strong>\uff1a\u8981\u6c42 <code>SELECT<\/code> \u7684\u522b\u540d\u5fc5\u987b\u548c\u95ee\u9898\u8981\u6c42\u7684\u8f93\u51fa\u5217\u5b8c\u5168\u4e00\u81f4\u3002<\/li>\n\n\n\n<li><strong>\u63d2\u5165\u6570\u636e\u6821\u9a8c (\u4eae\u70b9)<\/strong>\uff1a\u901a\u8fc7\u6bd4\u5bf9\u771f\u5b9e\u63d2\u5165\u6d4b\u8bd5\u6570\u636e\uff08Insert Data\uff09\u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u9a8c\u8bc1\u4e1a\u52a1\u903b\u8f91\u7684\u5408\u7406\u6027\uff08\u907f\u514d\u201c\u8bed\u6cd5\u6b63\u786e\u4f46\u903b\u8f91\u8352\u8c2c\u201d\u7684 SQL\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8bb0\u5f55\u539f\u56e0<\/strong>\uff1a\u9009\u51fa\u6700\u4f73 SQL \u5e76\u8f93\u51fa\u8be6\u7ec6\u539f\u56e0\uff08<code>selection_reason<\/code>\uff09\uff0c\u5b58\u5165 State \u4f9b\u4e0b\u4e00\u8f6e\u8fed\u4ee3\u53c2\u8003\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u6574\u4f53\u903b\u8f91<\/h3>\n\n\n\n<p><strong>\u201c\u751f\u6210-\u6267\u884c-\u4fee\u6b63-\u8bc4\u4f30\u201d\u95ed\u73af<\/strong>\uff1a\u4e0d\u4ec5\u4f9d\u8d56 LLM \u7684\u751f\u6210\u80fd\u529b\uff0c\u66f4\u5f15\u5165\u4e86\u7f16\u8bd1\u5668\uff08DB\u5f15\u64ce\uff09\u7684\u786e\u5b9a\u6027\u53cd\u9988\u3002\u8fd9\u6781\u5927\u5730\u63d0\u5347\u4e86 Text-to-SQL \u7684\u51c6\u786e\u7387\u3002<\/p>\n\n\n\n<p><strong>\u6d4b\u8bd5\u6570\u636e\u9a71\u52a8 (Test-Driven)<\/strong>\uff1a\u5c06\u4e1a\u52a1\u91cc\u7684 <code>insert_data<\/code> \u4f5c\u4e3a Prompt \u7684\u4e00\u90e8\u5206\u5582\u7ed9\u6a21\u578b\uff0c\u4e0d\u4ec5\u7528\u4e8e\u751f\u6210\uff0c\u8fd8\u7528\u4e8e\u8bc4\u4f30\u9636\u6bb5\u9a8c\u8bc1\u7ed3\u679c\u96c6\u662f\u5426\u7b26\u5408\u5e38\u7406\uff0c\u6a21\u62df\u4e86\u771f\u5b9e\u6570\u636e\u5206\u6790\u5e08\u7684\u5f00\u53d1\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p><strong>\u6df7\u5408\u6a21\u578b\u7b56\u7565<\/strong>\uff1a\u751f\u6210\u9636\u6bb5\u4f7f\u7528\u5f00\u6e90\u6a21\u578b\u6216\u4f4e\u6210\u672c\u6a21\u578b\u7684\u9ad8\u5e76\u53d1\u8bd5\u9519\uff0c\u8bc4\u4f30\u9636\u6bb5\uff08\u88c1\u5224\uff09\u4f7f\u7528\u6602\u8d35\u4f46\u903b\u8f91\u80fd\u529b\u66f4\u5f3a\u7684\u6a21\u578b\u8fdb\u884c\u62cd\u677f\uff0c\u517c\u987e\u4e86\u6210\u672c\u4e0e\u6548\u679c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prompt \u4e0e Context \u5de5\u7a0b<\/h2>\n\n\n\n<p>\u4ee3\u7801\u5728\u6784\u5efa\u4e0a\u4e0b\u6587\u548c\u63d0\u793a\u8bcd\u65f6\uff0c\u6781\u5927\u5730\u4e30\u5bcc\u4e86\u4fe1\u606f\u5bc6\u5ea6\uff0c\u91c7\u7528\u4e86\u975e\u5e38\u6807\u51c6\u7684\u9ad8\u9636 RAG\uff08\u68c0\u7d22\u589e\u5f3a\u751f\u6210\uff09\u4e0e Prompt \u6280\u5de7\u3002<\/p>\n\n\n\n<p><strong>1. \u6781\u81f4\u7684\u4e0a\u4e0b\u6587\u6ce8\u5165 (Context Density)<\/strong> \u4e3a\u4e86\u9632\u6b62\u5927\u6a21\u578b\u201c\u5e7b\u89c9\u201d\uff0c\u4ee3\u7801\u5411 Prompt \u4e2d\u6ce8\u5165\u4e86\u6781\u5176\u4e30\u5bcc\u7684\u771f\u5b9e\u4e1a\u52a1\u4e0a\u4e0b\u6587\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7ed3\u6784\u4e0a\u4e0b\u6587<\/strong>\uff1a\u4e0d\u4ec5\u544a\u8bc9\u5927\u6a21\u578b\u8868\u540d\uff08<code>table_list<\/code>\uff09\uff0c\u8fd8\u901a\u8fc7 <code>ddl_to_markdown<\/code> \u5c06 DDL \u8bed\u53e5\u8f6c\u6362\u4e3a Markdown \u683c\u5f0f\uff08<code>table_descriptions<\/code>\uff09\uff0c\u6e05\u6670\u5c55\u793a\u5b57\u6bb5\u3001\u7c7b\u578b\u548c\u4e2d\u6587 Comment \u6ce8\u91ca\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u4e0a\u4e0b\u6587\uff08\u6838\u5fc3\u4eae\u70b9\uff09<\/strong>\uff1a\u901a\u8fc7 <code>insert_data_info<\/code> \u5c06\u771f\u5b9e\u7684\u6570\u636e\u5e93<strong>\u6d4b\u8bd5\u6570\u636e\uff08Insert \u8bed\u53e5\uff09<\/strong> \u5582\u7ed9\u5927\u6a21\u578b\u3002\u8fd9\u4e0d\u4ec5\u5e2e\u52a9\u751f\u6210\uff0c\u66f4\u5728\u88c1\u5224\u8bc4\u4f30\u9636\u6bb5\uff08<code>SQL_SELECTION_SYSTEM_PROMPT<\/code>\uff09\u8ba9\u5927\u6a21\u578b\u80fd\u591f\u6839\u636e\u771f\u5b9e\u6570\u636e\u7684\u503c\u57df\u6765\u5224\u65ad SQL \u903b\u8f91\u662f\u5426\u8352\u8c2c\u3002<\/li>\n\n\n\n<li><strong>\u4e1a\u52a1\u4e0a\u4e0b\u6587<\/strong>\uff1a\u533a\u5206\u4e86\u7279\u5b9a\u95ee\u9898\u7684\u4e1a\u52a1\u77e5\u8bc6\uff08<code>knowledge<\/code>\uff09\u548c\u5168\u5c40\u901a\u7528\u7684\u4e1a\u52a1\u89c4\u5219\uff08<code>common_knowledge<\/code>\uff09\uff0c\u5f3a\u7ea6\u675f\u6a21\u578b\u7684\u4e1a\u52a1\u903b\u8f91\u7406\u89e3\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>2. \u5c11\u6837\u672c\u63d0\u793a\u5de5\u7a0b (Few-Shot Prompting)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u751f\u6210\u548c\u8bc4\u4f30\u7684 Prompt \u4e2d\uff0c\u90fd\u6ce8\u5165\u4e86 <code>golden_sql<\/code>\uff08\u6807\u51c6\u7b54\u6848\/\u4f18\u8d28\u6837\u672c\uff09\u3002<\/li>\n\n\n\n<li>\u8fd9\u4e0d\u662f\u7b80\u5355\u7684 QA \u5bf9\uff0c\u800c\u662f\u660e\u786e\u544a\u8bc9\u5927\u6a21\u578b\u201c\u53c2\u8003\u4ee5\u4e0b\u6210\u529f\u7684 SQL \u6a21\u5f0f\u201d\uff08\u5982 CTE \u7684\u4f7f\u7528\u3001\u65f6\u95f4\u8303\u56f4\u7684\u7cbe\u786e\u5904\u7406\u3001 datediff \u8ba1\u7b97\u7559\u5b58\u7b49\uff09\uff0c\u5f15\u5bfc\u5927\u6a21\u578b\u6a21\u4eff\u4f18\u79c0\u7684\u7f16\u7801\u98ce\u683c\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>3. \u52a8\u6001\u4e0a\u4e0b\u6587\u6784\u5efa (Dynamic Context Update)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728 <code>sql_generation_node<\/code> \u4e2d\uff0c\u5982\u679c\u8fdb\u5165\u4e86\u7b2c\u4e8c\u8f6e\u6216\u4e4b\u540e\u7684\u8fed\u4ee3\uff08<code>state[\"episode\"] > 0<\/code>\uff09\uff0c\u4ee3\u7801\u4f1a\u52a8\u6001\u63d0\u53d6\u4e0a\u4e00\u8f6e\u88c1\u5224\u7559\u4e0b\u7684\u5386\u53f2\u4fee\u6539\u5efa\u8bae\uff1a <code>improvement_guidelines = \"\\n\\n\".join([f\"{guideline_id+1}: \\n{json.dumps(...)}\"...])<\/code><\/li>\n\n\n\n<li>\u8fd9\u79cd\u5c06\u201c\u5386\u53f2\u5931\u8d25\u6559\u8bad\u201d\u52a8\u6001\u7ec4\u5408\u6210\u65b0 Context \u7684\u505a\u6cd5\uff0c\u662f\u5f3a\u5316\u5927\u6a21\u578b\u8fed\u4ee3\u5b66\u4e60\u80fd\u529b\u7684\u5173\u952e\u5de5\u7a0b\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>4. \u5f3a\u7ea6\u675f\u7684\u8f93\u51fa\u683c\u5f0f (Output Formatting Constraints)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u6240\u6709 Prompt \u4e2d\uff0c\u90fd\u901a\u8fc7 Markdown \u683c\u5f0f\u548c JSON \u793a\u4f8b\u4e25\u683c\u5b9a\u4e49\u4e86\u8f93\u51fa\u7ed3\u6784\uff08\u4f8b\u5982 <code>{\"candidate\": \"SQL\"}<\/code> \u6216 <code>{\"selected_index\": 0, \"reasoning\": {...}}<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u4e3a\u4e86\u9632\u6b62\u5927\u6a21\u578b\u5728\u8f93\u51fa JSON \u65f6\u5e26\u6709 Markdown \u4ee3\u7801\u5757\u5305\u88f9\uff08<code>json ... <\/code>\uff09\uff0c\u4f5c\u8005\u5728 <code>utils.py<\/code> \u4e2d\u4e13\u95e8\u5199\u4e86 <code>extract_json<\/code> \u548c <code>extract_answer<\/code>\uff08\u5904\u7406 <code>&lt;think><\/code> \u6807\u7b7e\uff09\u8fdb\u884c\u540e\u5904\u7406\u5de5\u7a0b\uff0c\u4fdd\u8bc1\u7a0b\u5e8f\u7684\u9c81\u68d2\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u672c\u4eba\u5728\u524d\u6bb5\u65f6\u95f4\u521d\u6b21\u63a5\u89e6\u591a\u667a\u80fd\u4f53\u6280\u672f\u7684\u4e00\u6b21\u5b9e\u8df5\uff0c\u589e\u957f\u4e86\u8bb8\u591a\u89c1\u8bc6\uff0c\u5728\u6b64\u8bb0\u5f55\u4e00\u4e0b\u3002 \u4efb\u52a1\u9700\u6c42 \u8fd9\u662f2025\u5e74\u817e\u8baf\u6e38\u620f\u7b97\u6cd5\u5927\u8d5b\u6570\u667a\u51b3\u7b56 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-47","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Text to SQL\uff0c\u521d\u6b21\u5c1d\u8bd5Multi-Agent\u7cfb\u7edf\u6784\u5efa - Sunsyblog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sunsyblog.cn\/index.php\/2026\/03\/03\/text-to-sql\uff0c\u521d\u6b21\u5c1d\u8bd5multi-agent\u7cfb\u7edf\u6784\u5efa\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Text to SQL\uff0c\u521d\u6b21\u5c1d\u8bd5Multi-Agent\u7cfb\u7edf\u6784\u5efa - Sunsyblog\" \/>\n<meta property=\"og:description\" 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