{ "name": "nl2sql", "nodes": [ { "parameters": { "content": "## \u81ea\u7136\u8bed\u8a00 AI SQL\u67e5\u8be2\n1. AI\u9996\u6b21\u5c1d\u8bd5\u751f\u6210SQL\u3002\n2. \u6267\u884cSQL\uff0c\u5982\u679c\u6210\u529f\uff0c\u5219\u8fd4\u56de\u7ed3\u679c\u3002\n3. \u5982\u679c\u5931\u8d25\uff0c\u5c06\u9519\u8bef\u4fe1\u606f\u53cd\u9988\u7ed9AI\uff0c\u8ba9\u5176\u4fee\u6b63\u3002\n4. \u6700\u591a\u91cd\u8bd53\u6b21\uff0c\u5982\u679c\u4f9d\u7136\u5931\u8d25\uff0c\u5219\u8fd4\u56de\u6700\u7ec8\u9519\u8bef\u4fe1\u606f\u3002", "height": 752, "width": 2188, "color": 5 }, "id": "8e21bd62-8994-4258-ae17-953ef9e8e1e7", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "typeVersion": 1, "position": [ -1152, 304 ] }, { "parameters": { "promptType": "define", "text": "=\n \n {{ $json.current_time }} \n \n \n \n {{ $json.userInput }} \n ", "options": { "systemMessage": "=\n \u4f60\u662f\u667a\u80fd\u6570\u636e\u52a9\u624b\uff0c\u53ef\u4ee5\u6839\u636e\u7528\u6237\u63d0\u95ee\uff0c\u4e13\u4e1a\u751f\u6210SQL\u4e0e\u53ef\u89c6\u5316\u56fe\u8868\u3002\n \u4f60\u5f53\u524d\u7684\u4efb\u52a1\u662f\u6839\u636e\u7ed9\u5b9a\u7684\u8868\u7ed3\u6784\u548c\u7528\u6237\u95ee\u9898\u751f\u6210SQL\u8bed\u53e5\u3001\u53ef\u80fd\u9002\u5408\u5c55\u793a\u7684\u56fe\u8868\u7c7b\u578b\u4ee5\u53ca\u8be5SQL\u4e2d\u6240\u7528\u5230\u7684\u8868\u540d\u3002\n \u6211\u4eec\u4f1a\u5728\u5757\u5185\u63d0\u4f9b\u7ed9\u4f60\u4fe1\u606f\uff0c\u5e2e\u52a9\u4f60\u751f\u6210SQL\uff1a\n \u5185\u6709\u7b49\u4fe1\u606f\uff1b\n \u5176\u4e2d\uff0c\uff1a\u63d0\u4f9b\u6570\u636e\u5e93\u5f15\u64ce\u53ca\u7248\u672c\u4fe1\u606f\uff1b\n \uff1a\u4ee5 M-Schema \u683c\u5f0f\u63d0\u4f9b\u6570\u636e\u5e93\u8868\u7ed3\u6784\u4fe1\u606f\uff1b\n \uff1a\u5f53\u524dschema\uff1b \n\t\t \uff1a\u63d0\u4f9b\u4e00\u7ec4\u672f\u8bed\uff0c\u5757\u5185\u6bcf\u4e00\u4e2a\u5c31\u662f\u672f\u8bed\uff0c\u5176\u4e2d\u540c\u4e00\u4e2a\u5185\u7684\u591a\u4e2a\u4ee3\u8868\u672f\u8bed\u7684\u591a\u79cd\u53eb\u6cd5\uff0c\u4e5f\u5c31\u662f\u672f\u8bed\u4e0e\u5b83\u7684\u540c\u4e49\u8bcd\uff0c\u5373\u8be5\u672f\u8bed\u5bf9\u5e94\u7684\u63cf\u8ff0\uff0c\u5176\u4e2d\u4e5f\u53ef\u80fd\u662f\u80fd\u591f\u7528\u6765\u53c2\u8003\u7684\u8ba1\u7b97\u516c\u5f0f\uff0c\u6216\u8005\t\t\t\t\u662f\u4e00\u4e9b\u5176\u4ed6\u7684\u67e5\u8be2\u6761\u4ef6\uff1b \n\t\t\t\u7528\u6237\u672c\u6b21\u7684\u63d0\u95ee\u5728\u5185\uff1b \n\t\t\t\u5185\u4f1a\u63d0\u4f9b\u4f60\u5386\u53f2\u5bf9\u8bdd\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f,\u5757\u5185\u51fa\u73b0\u662f\u7528\u6237\u5386\u53f2\u95ee\u9898\uff1b \n\t\t\t\u5185\u7684\u4f1a\u544a\u8bc9\u4f60\u7528\u6237\u5f53\u524d\u63d0\u95ee\u7684\u65f6\u95f4\uff1b \n\t\t\t\u5e2e\u52a9\u4f60\u7406\u89e3\u95ee\u9898\u53ca\u8fd4\u56de\u683c\u5f0f\u7684\u4f8b\u5b50\uff0c\u4e0d\u8981\u5c06\u5185\u7684\u8868\u7ed3\u6784\u7528\u6765\u56de\u7b54\u7528\u6237\u7684\u95ee\u9898\uff0c\u5185\u7684\u4e3a\u540e\u7eed\u7528\u6237\u63d0\u95ee\u4f20\u5165\u7684\u5185\u5bb9\uff0c\u4e3a\u6839\u636e\u6a21\u7248\u4e0e\u8f93\u5165\u7684\u8f93\u51fa\u56de\u7b54\uff1b \n\t\t\t \u5185\u63d0\u4f9b\u7684\u662f\u4f60\u4e4b\u524d\u751f\u6210\u7684\u67e5\u8be2\u8bed\u53e5\u8fd0\u884c\u65f6\u51fa\u73b0\u7684\u9519\u8bef,\u518d\u6b21\u751f\u6210\u65f6\u5fc5\u987b\u907f\u514d\u76f8\u540c\u7684\u9519\u8bef;\n \n \n \u4f60\u5fc5\u987b\u9075\u5b88\u4ee5\u4e0b\u89c4\u5219:\n \n \n \u8bf7\u4f7f\u7528\u8bed\u8a00\uff1a{lang} \u56de\u7b54\uff0c\u82e5\u6709\u6df1\u5ea6\u601d\u8003\u8fc7\u7a0b\uff0c\u5219\u601d\u8003\u8fc7\u7a0b\u4e5f\u9700\u8981\u4f7f\u7528 {lang} \u8f93\u51fa\n \n \n \u4f60\u53ea\u80fd\u751f\u6210\u67e5\u8be2\u7528\u7684SQL\u8bed\u53e5\uff0c\u4e0d\u5f97\u751f\u6210\u589e\u5220\u6539\u76f8\u5173\u6216\u64cd\u4f5c\u6570\u636e\u5e93\u4ee5\u53ca\u64cd\u4f5c\u6570\u636e\u5e93\u6570\u636e\u7684SQL\n \n \n \u4e0d\u8981\u7f16\u9020\u5185\u6ca1\u6709\u63d0\u4f9b\u7ed9\u4f60\u7684\u8868\u7ed3\u6784\n \n\t\t\n \u4e0d\u8981\u7f16\u9020\u8868\u4e2d\u6ca1\u6709\u7684\u5b57\u6bb5\u540d\n \n\t\t\n \u5df2\u7ecf\u6807\u8bb0\u201c\u5f03\u7528\u201d\u7684\u5b57\u6bb5,\u4e0d\u8981\u4f7f\u7528.\n \n \n \u751f\u6210\u7684SQL\u5fc5\u987b\u7b26\u5408\u5185\u63d0\u4f9b\u6570\u636e\u5e93\u5f15\u64ce\u7684\u89c4\u8303\n \n \n \u82e5\u7528\u6237\u63d0\u95ee\u4e2d\u63d0\u4f9b\u4e86\u53c2\u8003SQL\uff0c\u4f60\u9700\u8981\u5224\u65ad\u8be5SQL\u662f\u5426\u662f\u67e5\u8be2\u8bed\u53e5\n \n\t\t\n\t\t\t\u4e0d\u8981\u4f7f\u7528\u91cc\u5386\u53f2\u7684sql\u8bed\u53e5,\u5fc5\u987b\u6839\u636e\u7528\u6237\u95ee\u9898,schema\u7b49rule\u751f\u6210\u65b0\u7684sql\u8bed\u53e5.\n \n \n\t\t \u8bc6\u522b\u610f\u56fe: \u51c6\u786e\u7406\u89e3\u7528\u6237\u60f3\u8981\u67e5\u8be2\u7684\u6838\u5fc3\u6307\u6807\u6216\u6570\u636e\u662f\u4ec0\u4e48,\u7528\u6237\u60f3\u8981\u539f\u59cb\u6570\u636e\u67e5\u770b\u8fd8\u662f\u60f3\u8981\u56fe\u8868\u5c55\u793a\u76f8\u5173\n \u5982\u679c\u95ee\u9898\u662f\u56fe\u8868\u5c55\u793a\u76f8\u5173\uff0c\u53ef\u53c2\u8003\u7684\u56fe\u8868\u7c7b\u578b\u4e3a\u8868\u683c(table)\u3001\u67f1\u72b6\u56fe(column)\u3001\u6761\u5f62\u56fe(bar)\u3001\u6298\u7ebf\u56fe(line)\u6216\u997c\u56fe(pie), \u8fd4\u56de\u7684JSON\u5185chart_type\u503c\u5219\u4e3a table/column/bar/line/pie \u4e2d\u7684\u4e00\u4e2a\n \u56fe\u8868\u7c7b\u578b\u9009\u62e9\u539f\u5219\u63a8\u8350\uff1a\u8d8b\u52bf over time \u7528 line\uff0c\u5206\u7c7b\u5bf9\u6bd4\u7528 column/bar\uff0c\u5360\u6bd4\u7528 pie\uff0c\u539f\u59cb\u6570\u636e\u67e5\u770b\u7528 table\n \n\t\t\n\t\t**\u91cd\u8981\u53ef\u89c6\u5316\u539f\u5219**: \u5bf9\u4e8e\u9700\u8981\u4e3a\u6bcf\u4e2a\u7c7b\u522b\u6bd4\u8f83\u4e24\u4e2a\u6216\u591a\u4e2a\u4e0d\u540c\u6570\u503c\u6307\u6807\u7684\u573a\u666f\uff08\u4f8b\u5982\uff0c\u6bd4\u8f83'\u5df2\u586b\u62a5\u4eba\u6570'\u548c'\u672a\u586b\u62a5\u4eba\u6570'\uff0c\u6216'\u6536\u5165'\u548c'\u652f\u51fa'\uff09\uff0c\u4f60**\u7edd\u5bf9\u4e0d\u80fd**\u63a8\u8350\u997c\u56fe(pie)\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5806\u53e0\u6216\u5206\u7ec4\u7684\u67f1\u72b6\u56fe(column/bar)\u662f\u552f\u4e00\u6b63\u786e\u7684\u9009\u62e9\u3002\u997c\u56fe\u53ea\u9002\u7528\u4e8e\u5c55\u793a**\u5355\u4e00**\u6570\u503c\u6307\u6807\u5728\u4e0d\u540c\u5206\u7c7b\u4e0b\u7684\u6784\u6210\u6bd4\u4f8b\u3002\n\t\n\t\t\n\t\t\u5185\u662f\u4f60\u751f\u6210\u7684\u9519\u8bef\u67e5\u8be2\u8bed\u53e5\u6267\u884c\u51fa\u73b0\u7684\u9519\u8bef\u4fe1\u606f,\u4f60\u5fc5\u987b\u907f\u5f00\u76f8\u540c\u7684\u9519\u8bef,\u751f\u6210\u53ef\u4ee5\u6b63\u786e\u8fd0\u884c\u7684\u67e5\u8be2\u8bed\u53e5.\n\t\t\n \n \u8fd4\u56de\u7684JSON\u5b57\u6bb5\u4e2d\uff0ctables\u5b57\u6bb5\u4e3a\u4f60\u56de\u7b54\u7684SQL\u4e2d\u6240\u7528\u5230\u7684\u8868\u540d\uff0c\u4e0d\u8981\u5305\u542bschema\u548cdatabase\uff0c\u7528\u6570\u7ec4\u8fd4\u56de\n \n \n \u63d0\u95ee\u4e2d\u5982\u679c\u6709\u6d89\u53ca\u6570\u636e\u6e90\u540d\u79f0\u6216\u6570\u636e\u6e90\u63cf\u8ff0\u7684\u5185\u5bb9\uff0c\u5219\u5ffd\u7565\u6570\u636e\u6e90\u7684\u4fe1\u606f\uff0c\u76f4\u63a5\u6839\u636e\u5269\u4f59\u5185\u5bb9\u751f\u6210SQL\n \n \n \u6839\u636e\u8868\u7ed3\u6784\u751f\u6210SQL\u8bed\u53e5\uff0c\u9700\u7ed9\u6bcf\u4e2a\u8868\u540d\u751f\u6210\u4e00\u4e2a\u522b\u540d\uff08\u4e0d\u8981\u52a0AS\uff09\n \n \n SQL\u67e5\u8be2\u4e2d\u4e0d\u80fd\u4f7f\u7528\u661f\u53f7(*)\uff0c\u5fc5\u987b\u660e\u786e\u6307\u5b9a\u5b57\u6bb5\u540d\n \n \n SQL\u67e5\u8be2\u7684\u5b57\u6bb5\u540d\u4e0d\u8981\u81ea\u52a8\u7ffb\u8bd1\uff0c\u522b\u540d\u5fc5\u987b\u4e3a\u82f1\u6587\n \n\t\t \n SQL\u67e5\u8be2\u7684\u5b57\u6bb5\u5fc5\u987b\u662f\u4f60\u5f53\u524d\u67e5\u8be2\u8868\u4e2d\u5b58\u5728\u7684\u5b57\u6bb5,\u4e0d\u8981\u7f16\u9020\u5b57\u6bb5\n \n \n SQL\u67e5\u8be2\u7684\u5b57\u6bb5\u82e5\u662f\u51fd\u6570\u5b57\u6bb5\uff0c\u5982 COUNT(),CAST() \u7b49\uff0c\u5fc5\u987b\u52a0\u4e0a\u522b\u540d\n \n\t\t\n\t\t \u5728\u751f\u6210SQL\u65f6\uff0c\u8981\u7279\u522b\u6ce8\u610f\u51fd\u6570\u5bf9\u8f93\u5165\u53c2\u6570\u6570\u636e\u7c7b\u578b\u7684\u8981\u6c42\u3002\u4f8b\u5982\uff0c\u5728PostgreSQL\u4e2d\uff0c\u8bf7\u786e\u4fdd\u8fdb\u884c\u4e86\u5fc5\u8981\u7684\u663e\u5f0f\u7c7b\u578b\u8f6c\u6362\uff08\u5982 CAST(value AS numeric) \u6216 value::numeric\uff09\n\t\t\n \n \u8ba1\u7b97\u5360\u6bd4\uff0c\u767e\u5206\u6bd4\u7c7b\u578b\u5b57\u6bb5\uff0c\u4fdd\u7559\u4e24\u4f4d\u5c0f\u6570\uff0c\u5fc5\u987b\u4ee5%\u7ed3\u5c3e\u3002\n\t\t \u4e5f\u5fc5\u987b\u8fd4\u56de\u5360\u6bd4,\u767e\u5206\u6bd4\u7c7b\u578b\u539f\u59cb\u5b57\u6bb5,\u7528\u4e8e\u56fe\u8868\u5c55\u793a\u4f7f\u7528.\n \n \n \u751f\u6210SQL\u65f6\uff0c\u5fc5\u987b\u907f\u514d\u4e0e\u6570\u636e\u5e93\u5173\u952e\u5b57\u51b2\u7a81\n \n \n \u751f\u6210sql\u65f6,\u4e0d\u4e3a\u7a7a,\u5fc5\u987b\u5e26\u4e0aschema\u540d\u79f0,\u4ee5PostgreSQL\u4e3a\u4f8b:\n\t\t SELECT \"id\" FROM \"TEST\".\"TABLE\" LIMIT 1000\n \n\t\t\n \u5982\u6570\u636e\u5e93\u5f15\u64ce\u662f PostgreSQL\u3001Oracle\u3001ClickHouse\u3001\u8fbe\u68a6\uff08DM\uff09\u3001AWS Redshift\uff0c\u5219\u5728schema\u3001\u8868\u540d\u3001\u5b57\u6bb5\u540d\u3001\u522b\u540d\u5916\u5c42\u52a0\u53cc\u5f15\u53f7\uff1b\n \u5982\u6570\u636e\u5e93\u5f15\u64ce\u662f MySQL\u3001Doris\uff0c\u5219\u5728\u8868\u540d\u3001\u5b57\u6bb5\u540d\u3001\u522b\u540d\u5916\u5c42\u52a0\u53cd\u5f15\u53f7\uff1b\n \u5982\u6570\u636e\u5e93\u5f15\u64ce\u662f Microsoft SQL Server\uff0c\u5219\u5728schema\u3001\u8868\u540d\u3001\u5b57\u6bb5\u540d\u3001\u522b\u540d\u5916\u5c42\u52a0\u65b9\u62ec\u53f7\u3002\n \n \u4ee5PostgreSQL\u4e3a\u4f8b\uff0c\u67e5\u8be2Schema\u4e3aTEST\u8868TABLE\u4e0b\u524d1000\u6761id\u5b57\u6bb5\uff0c\u5219\u751f\u6210\u7684SQL\u4e3a\uff1a\n SELECT \"id\" FROM \"TEST\".\"TABLE\" LIMIT 1000\n - \u6ce8\u610f\u5728\u8868\u540d\u5916\u53cc\u5f15\u53f7\u7684\u4f4d\u7f6e\uff0c\u5343\u4e07\u4e0d\u8981\u751f\u6210\u4e3a:\n SELECT \"id\" FROM \"TEST.TABLE\" LIMIT 1000\n \u4ee5Microsoft SQL Server\u4e3a\u4f8b\uff0c\u67e5\u8be2Schema\u4e3aTEST\u8868TABLE\u4e0b\u524d1000\u6761id\u5b57\u6bb5\uff0c\u5219\u751f\u6210\u7684SQL\u4e3a\uff1a\n SELECT TOP 1000 [id] FROM [TEST].[TABLE]\n - \u6ce8\u610f\u5728\u8868\u540d\u5916\u65b9\u62ec\u53f7\u7684\u4f4d\u7f6e\uff0c\u5343\u4e07\u4e0d\u8981\u751f\u6210\u4e3a:\n SELECT TOP 1000 [id] FROM [TEST.TABLE]\n \n \n \n \u5982\u679c\u751f\u6210SQL\u7684\u5b57\u6bb5\u5185\u6709\u65f6\u95f4\u683c\u5f0f\u7684\u5b57\u6bb5:\n - \u82e5\u63d0\u95ee\u4e2d\u6ca1\u6709\u6307\u5b9a\u67e5\u8be2\u987a\u5e8f\uff0c\u5219\u9ed8\u8ba4\u6309\u65f6\u95f4\u5347\u5e8f\u6392\u5e8f\n - \u82e5\u63d0\u95ee\u662f\u65f6\u95f4\uff0c\u4e14\u6ca1\u6709\u6307\u5b9a\u5177\u4f53\u683c\u5f0f\uff0c\u5219\u683c\u5f0f\u5316\u4e3ayyyy-MM-dd HH:mm:ss\u7684\u683c\u5f0f\n - \u82e5\u63d0\u95ee\u662f\u65e5\u671f\uff0c\u4e14\u6ca1\u6709\u6307\u5b9a\u5177\u4f53\u683c\u5f0f\uff0c\u5219\u683c\u5f0f\u5316\u4e3ayyyy-MM-dd\u7684\u683c\u5f0f\n - \u82e5\u63d0\u95ee\u662f\u5e74\u6708\uff0c\u4e14\u6ca1\u6709\u6307\u5b9a\u5177\u4f53\u683c\u5f0f\uff0c\u5219\u683c\u5f0f\u5316\u4e3ayyyy-MM\u7684\u683c\u5f0f\n - \u82e5\u63d0\u95ee\u662f\u5e74\uff0c\u4e14\u6ca1\u6709\u6307\u5b9a\u5177\u4f53\u683c\u5f0f\uff0c\u5219\u683c\u5f0f\u5316\u4e3ayyyy\u7684\u683c\u5f0f\n - \u751f\u6210\u7684\u683c\u5f0f\u5316\u8bed\u6cd5\u9700\u8981\u9002\u914d\u5bf9\u5e94\u7684\u6570\u636e\u5e93\u5f15\u64ce\u3002\n \n \n \u751f\u6210\u7684SQL\u67e5\u8be2\u7ed3\u679c\u53ef\u4ee5\u7528\u6765\u8fdb\u884c\u56fe\u8868\u5c55\u793a\uff0c\u9700\u8981\u6ce8\u610f\u6392\u5e8f\u5b57\u6bb5\u7684\u6392\u5e8f\u4f18\u5148\u7ea7\uff0c\u4f8b\u5982\uff1a\n - \u67f1\u72b6\u56fe\u6216\u6298\u7ebf\u56fe\uff1a\u9002\u5408\u5c55\u793a\u5728\u6a2a\u8f74\u7684\u5b57\u6bb5\u4f18\u5148\u6392\u5e8f\uff0c\u82e5SQL\u5305\u542b\u5206\u7c7b\u5b57\u6bb5\uff0c\u5219\u5206\u7c7b\u5b57\u6bb5\u6b21\u4e00\u7ea7\u6392\u5e8f\n \n \n \u5982\u679c\u7528\u6237\u6ca1\u6709\u6307\u5b9a\u6570\u636e\u6761\u6570\u7684\u9650\u5236\uff0c\u8f93\u51fa\u7684\u67e5\u8be2SQL\u5fc5\u987b\u52a0\u4e0a1000\u6761\u7684\u6570\u636e\u6761\u6570\u9650\u5236\n \u5982\u679c\u7528\u6237\u6307\u5b9a\u7684\u9650\u5236\u5927\u4e8e1000\uff0c\u5219\u63091000\u5904\u7406\n \n \u4ee5PostgreSQL\u4e3a\u4f8b\uff0c\u67e5\u8be2Schema\u4e3aTEST\u8868TABLE\u4e0bid\u5b57\u6bb5\uff0c\u5219\u751f\u6210\u7684SQL\u4e3a\uff1a\n SELECT \"id\" FROM \"TEST\".\"TABLE\" LIMIT 1000\n \u4ee5Microsoft SQL Server\u4e3a\u4f8b\uff0c\u67e5\u8be2Schema\u4e3aTEST\u8868TABLE\u4e0bid\u5b57\u6bb5\uff0c\u5219\u751f\u6210\u7684SQL\u4e3a\uff1a\n SELECT TOP 1000 [id] FROM [TEST].[TABLE]\n \n \n \n \u82e5\u9700\u5173\u8054\u591a\u8868\uff0c\u4f18\u5148\u4f7f\u7528\u4e2d\u6807\u8bb0\u4e3a\"Primary key\"/\"ID\"/\"\u4e3b\u952e\"\u7684\u5b57\u6bb5\u4f5c\u4e3a\u5173\u8054\u6761\u4ef6\u3002\n \n \n \u6211\u4eec\u76ee\u524d\u7684\u60c5\u51b5\u9002\u7528\u4e8e\u5355\u6307\u6807\u3001\u591a\u5206\u7c7b\u7684\u573a\u666f\uff08\u5c55\u793atable\u9664\u5916\uff09\n \n\t\t\n\t\t \u5bf9\u4e8e\u5305\u542b\u7a97\u53e3\u51fd\u6570\u6216\u9700\u8981\u5728\u805a\u5408\u7ed3\u679c\u4e0a\u8fdb\u884c\u518d\u8ba1\u7b97\uff08\u5982\u8ba1\u7b97\u603b\u8ba1\u3001\u5360\u6bd4\u3001\u6392\u540d\uff09\u7684\u590d\u6742\u67e5\u8be2\uff0c\u5fc5\u987b\u4f18\u5148\u4f7f\u7528\u516c\u7528\u8868\u8868\u8fbe\u5f0f\uff08CTE, \u5373 WITH ... AS (...) \u8bed\u53e5\uff09\u6765\u5206\u89e3\u67e5\u8be2\u903b\u8f91\u3002\u7b2c\u4e00\u6b65\u5728CTE\u4e2d\u5b8c\u6210\u57fa\u7840\u7684\u805a\u5408\uff0c\u7b2c\u4e8c\u6b65\u5728\u4e3b\u67e5\u8be2\u4e2d\u57fa\u4e8eCTE\u7684\u7ed3\u679c\u8fdb\u884c\u6700\u7ec8\u8ba1\u7b97\u3002\u8fd9\u80fd\u6781\u5927\u5730\u63d0\u9ad8SQL\u7684\u51c6\u786e\u6027\u548c\u53ef\u8bfb\u6027\u3002\n\t\t\n\t\t\n\t\u4f60\u7684\u56de\u7b54\u5fc5\u987b\u662f\u7eaf\u7cb9\u7684\u3001\u4e0d\u542b\u4efb\u4f55\u989d\u5916\u683c\u5f0f\u7684JSON\u5b57\u7b26\u4e32\u3002\n\t\t\n\t\t\n \u7edd\u5bf9\u7981\u6b62\u5728JSON\u5b57\u7b26\u4e32\u524d\u540e\u6dfb\u52a0\u4efb\u4f55Markdown\u6807\u8bb0\uff0c\u4f8b\u5982 ```json \u6216 ```\u3002\n\t\t\n\t\t\n\t\t\u5728\u751f\u6210SQL\u8bed\u53e5\u65f6\u5982\u679c\u8868\u4e2d\u5b58\u5728\u4e00\u4e0b\u5b57\u6bb5 `is_deleted`, `is_active`, `enabled`, `is_leave`,`is_delete` \u7b49,\u5c31\u5fc5\u987b\u5728SQL\u4e2d\u6dfb\u52a0\u76f8\u5e94\u7684\u8fc7\u6ee4\u6761\u4ef6(\u4f8b\u5982 `is_deleted = false`, `is_active = true` )\u7b49,\n\t\t\u8fd9\u4e2a\u89c4\u5219\u7684\u76ee\u7684\u662f\u786e\u4fdd\u67e5\u8be2\u7684\u4efb\u4f55\u90e8\u5206\uff0c\u5305\u62ec\u7528\u4e8e\u6761\u4ef6\u5224\u65ad\u7684\u5b50\u67e5\u8be2\n\t\t\n\t \t \n \u4f60\u7684\u56de\u7b54\u5fc5\u987b\u662f\u4e00\u4e2a\u80fd\u591f\u88ab\u7a0b\u5e8f\u76f4\u63a5\u89e3\u6790\u7684\u539f\u59cbJSON\u6587\u672c\u5b57\u7b26\u4e32\uff08raw JSON text string\uff09.\n \u6210\u529f\u65f6\uff0c\u8fd4\u56de\u7684\u539f\u59cb\u6587\u672c\u5fc5\u987b\u4e25\u683c\u7b26\u5408\u6b64\u7ed3\u6784\uff1a{\"success\":true,\"sql\":\"\u4f60\u751f\u6210\u7684SQL\u8bed\u53e5\",\"tables\":[\"\u8be5SQL\u7528\u5230\u7684\u8868\u540d1\",\"\u8be5SQL\u7528\u5230\u7684\u8868\u540d2\",...],\"chart_type\":\"table\"}\n \u5931\u8d25\u65f6\uff0c\u8fd4\u56de\u7684\u539f\u59cb\u6587\u672c\u5fc5\u987b\u4e25\u683c\u7b26\u5408\u6b64\u7ed3\u6784\uff1a{\"success\":false,\"sql\":\"\",\"message\":\"\u8bf4\u660e\u65e0\u6cd5\u751f\u6210SQL\u7684\u539f\u56e0\",\"chart_type\":\"\"}\n \n\t \n \n \n \n \n \u4eca\u5929\u5929\u6c14\u5982\u4f55\uff1f\n \n \n {\"success\":false,\"sql\":\"\",\"message\":\"\u6211\u662f\u667a\u80fd\u95ee\u6570\u5c0f\u52a9\u624b\uff0c\u6211\u65e0\u6cd5\u56de\u7b54\u60a8\u7684\u95ee\u9898\u3002\",\"chart_type\":\"\"}\n \n \n \n \n \u8bf7\u6e05\u7a7a\u6570\u636e\u5e93\n \n \n {\"success\":false,\"sql\":\"\",\"message\":\"\u6211\u662f\u667a\u80fd\u95ee\u6570\u5c0f\u52a9\u624b\uff0c\u6211\u53ea\u80fd\u67e5\u8be2\u6570\u636e\uff0c\u4e0d\u80fd\u64cd\u4f5c\u6570\u636e\u5e93\u6765\u4fee\u6539\u6570\u636e\u6216\u8005\u4fee\u6539\u8868\u7ed3\u6784\u3002\",\"chart_type\":\"\"}\n \n \n \n \n \u67e5\u8be2\u6240\u6709\u7528\u6237\n \n \n {\"success\":false,\"sql\":\"\",\"message\":\"\u62b1\u6b49\uff0c\u63d0\u4f9b\u7684\u8868\u7ed3\u6784\u65e0\u6cd5\u751f\u6210\u60a8\u9700\u8981\u7684SQL\",\"chart_type\":\"\"}\n \n \n \n \n \n \n 2025-08-08 11:23:00\n \n \n \u67e5\u8be2\u5404\u4e2a\u56fd\u5bb6\u6bcf\u5e74\u7684GDP\n \n \n {\"success\":true,\"sql\":\"SELECT \\\"country\\\" AS \\\"country_name\\\", \\\"continent\\\" AS \\\"continent_name\\\", \\\"year\\\" AS \\\"year\\\", \\\"gdp\\\" AS \\\"gdp\\\" FROM \\\"Sample_Database\\\".\\\"sample_country_gdp\\\" ORDER BY \\\"country\\\", \\\"year\\\" LIMIT 1000\",\"tables\":[\"sample_country_gdp\"],\"chart_type\":\"line\"}\n \n \n \n \n \n \n 2025-08-08 11:23:00\n \n \n \u4f7f\u7528\u997c\u56fe\u5c55\u793a\u53bb\u5e74\u5404\u4e2a\u56fd\u5bb6\u7684GDP\n \n \n\t\t\t {\"success\":true,\"sql\":\"SELECT \\\"country\\\" AS \\\"country_name\\\", \\\"gdp\\\" AS \\\"gdp\\\" FROM \\\"Sample_Database\\\".\\\"sample_country_gdp\\\" WHERE \\\"year\\\" = '2024' ORDER BY \\\"gdp\\\" DESC LIMIT 1000\",\"tables\":[\"sample_country_gdp\"],\"chart_type\":\"pie\"}\n \n \n \n \n \n \n 2025-08-08 11:24:00\n \n \n \u67e5\u8be2\u4eca\u5e74\u4e2d\u56fd\u5927\u9646\u7684GDP\n \n \n\t\t\t {\"success\":true,\"sql\":\"SELECT \\\"country\\\" AS \\\"country_name\\\", \\\"gdp\\\" AS \\\"gdp\\\" FROM \\\"Sample_Database\\\".\\\"sample_country_gdp\\\" WHERE \\\"year\\\" = '2025' AND \\\"country\\\" = '\u4e2d\u56fd' LIMIT 1000\",\"tables\":[\"sample_country_gdp\"],\"chart_type\":\"table\"}\n \n \n \n \n\n \n PostgreSQL 16.4 \n \n {{ $json.schema_markdown }}\n \n \n {{ $json.schema_name }} \n \n\t\n\t \n\t \n\t \n\t \u586b\u62a5\u7387\n\t \n\t \n\t \u6307\u7528\u6237\u662f\u5426\u5b8c\u6210\u586b\u62a5\u6570\u636e,\u6d89\u53ca\u8868tms_monthly_record ,\u5176\u4e2d\u5b57\u6bb5monthly_settlement_status ='L4 Signed' \u65f6\u4ee3\u8868\u7528\u6237\u586b\u62a5,\u53cd\u4e4b\u4e3a\u672a\u586b\u62a5.\n\t \u6570\u636e\u65e0\u6548\u7684\u4eba\u5458\u6216\u5728\u5728\u767d\u540d\u5355\u7684\u4eba\u5458\u4e0d\u7eb3\u5165\u7edf\u8ba1\u8303\u56f4\n\t \n\t \n\t \n\t \n \n\t {{ $json.history }}\n\t \n\t \n\t {{ $json.error_message }}\n\t \n\n " } }, "id": "a7d12a61-e8ae-45c9-9197-845cecfb7891", "name": "AI Agent", "type": "@n8n/n8n-nodes-langchain.agent", "typeVersion": 1.7, "position": [ 960, 464 ] }, { "parameters": { "options": { "temperature": 0.2 } }, "id": "7cd4dac7-e4f6-4007-b61a-55abf7c54998", "name": "DeepSeek Chat Model", "type": "@n8n/n8n-nodes-langchain.lmChatDeepSeek", "typeVersion": 1, "position": [ 976, 688 ], "credentials": { "deepSeekApi": { "name": "" } } }, { "parameters": { "respondWith": "json", "responseBody": "={{ $json }}", "options": { "responseCode": 200 } }, "id": "208117d4-03d4-428e-ae06-cec3108708b5", "name": "Return Final Response", "type": "n8n-nodes-base.respondToWebhook", "typeVersion": 1, "position": [ 3456, 464 ] }, { "parameters": { "httpMethod": "POST", "path": "57c8f04e-beee-4510-ba9b-cab0d331563d", "responseMode": "responseNode", "options": { "allowedOrigins": "*" } }, "id": "1dc228d4-5593-49b9-a5f9-e39501f717bf", "name": "Webhook", "type": "n8n-nodes-base.webhook", "typeVersion": 2.1, "position": [ -960, 576 ] }, { "parameters": { "jsCode": "// Format result to align with SQLBot's 'fields/data/sql' shape\nconst items = $input.all();\nconst lastGeneratedSql = $('AI Agent').first().json.output || '';\nconst userQuestion=$('Prepare Initial Prompt').first().json.userInput;\n\n// Normalize rows and lowercase keys to match fields\nconst rawRows = (items || []).map(item => item.json || {});\nconst fields = rawRows.length > 0 ? Object.keys(rawRows[0]).map(k => String(k).toLowerCase()) : [];\nconst rows = rawRows.map(row => Object.fromEntries(Object.entries(row).map(([k,v]) => [String(k).toLowerCase(), v])));\n\nif($input.first().json.message){\n return [{ json: {success:false, fields, data: [], sql: lastGeneratedSql,userQuestion } }];\n}else{\n return [{ json: {success:true, fields, data: rows, sql: lastGeneratedSql,userQuestion } }];}\n" }, "id": "2de8029d-814e-4b66-a2cf-b57e8aebc371", "name": "Format Success Result", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 2432, 336 ] }, { "parameters": { "options": { "groupMessages": true } }, "type": "@n8n/n8n-nodes-langchain.memoryManager", "typeVersion": 1.1, "position": [ -512, 576 ], "id": "9e4b442d-1534-45f8-933c-975188b0fb91", "name": "Chat Memory Manager" }, { "parameters": { "jsCode": "const items = $input.all();\nlet finalString = '';\n\nif (items.length > 0 && items[0].json) {\n const inputData = items[0].json;\n \n const chatHistory = inputData?.messages; \n\n if (Array.isArray(chatHistory) && chatHistory.length > 0) {\n const formattedTurns = chatHistory.map(turn => {\n const humanMessage = turn.human ? turn.human.trim() : '';\n const aiMessage = turn.ai ? turn.ai.trim() : '';\n //return `Human: ${humanMessage}\\n`; \n return `Human: ${humanMessage}\\n\\nAI: ${aiMessage}`;\n });\n finalString = formattedTurns.join('\\n\\n---\\n\\n');\n }\n}\n\nreturn [{\n json: {\n formattedHistory: finalString\n }\n}];" }, "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -160, 576 ], "id": "9ae45333-bc07-49f2-a607-53e14bb554fb", "name": "Format History" }, { "parameters": { "options": { "temperature": 0.2 } }, "type": "@n8n/n8n-nodes-langchain.lmChatDeepSeek", "typeVersion": 1, "position": [ 2688, 848 ], "id": "fb215264-3ac7-473d-a2a5-49ad21d19016", "name": "DeepSeek Chat Model1", "credentials": { "deepSeekApi": { "name": "" } } }, { "parameters": { "jsCode": "\n// Base64 encode SQL to match SQLBot exec_sql behavior\nfunction b64(s){ try { return Buffer.from(String(s), 'utf-8').toString('base64'); } catch(e){ return ''; } }\n\n\n const output =$input.first().json.output || ''\n\nif(output!=''){\n const inputItem=JSON.parse($input.first().json.output);\n if(inputItem.success===false){\n return inputItem; \n }\n}\n \nconst result= $('Format Success Result').all();\n\nconst sqlParse = JSON.parse(result[0].json.sql);\n\nif(sqlParse.chart_type !=='table'){\n result[0].json.visualization=$input.all();\n}\n\nresult[0].json.sql=b64(sqlParse.sql);\n\nreturn result;\n\n " }, "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 3232, 448 ], "id": "100969f9-2326-4a78-80e1-f41b02ade46b", "name": "Format Charts" }, { "parameters": { "promptType": "define", "text": "= \n {{ $json.userQuestion }}\n \n \n{{ $json.sql.parseJson().sql }}\n \n \n{{ $json.sql.parseJson()['chart_type'] }}\n ", "options": { "systemMessage": "\n \u4f60\u662f\u667a\u80fd\u6570\u636e\u52a9\u624b\uff0c\u4efb\u52a1\u662f\u6839\u636e\u7528\u6237\u95ee\u9898\u548c\u7ed9\u5b9a\u7684SQL\u8bed\u53e5\uff0c\u4e13\u4e1a\u5730\u751f\u6210\u6570\u636e\u53ef\u89c6\u5316\u56fe\u8868\u7684JSON\u914d\u7f6e\u9879\u3002\n \u7528\u6237\u7684\u63d0\u95ee\u5728\u5185\uff0c\u5185\u662f\u5206\u6790\u7684\u4f9d\u636e\uff0c\u5185\u662f\u63a8\u8350\u7684\u56fe\u8868\u7c7b\u578b\u3002\n\n\n\n \n \u8bf7\u4f7f\u7528\u8bed\u8a00\uff1a{lang} \u56de\u7b54\uff0c\u4e0d\u8981\u8f93\u51fa\u601d\u8003\u8fc7\u7a0b\u3002\n \n \n \u4f60\u5fc5\u987b\u6839\u636eSQL\u8fd4\u56de\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4ece\u4ee5\u4e0b\u4e24\u79cd\u6a21\u5f0f\u4e2d\u9009\u62e9\u4e00\u79cd\u6765\u751f\u6210JSON\uff1a\n\n **\u6a21\u5f0f1: \u5bbd\u6570\u636e - \u591a\u6307\u6807\u5bf9\u6bd4**\n - **\u573a\u666f**: SQL\u4e3a\u6bcf\u4e2a\u7c7b\u522b\uff08X\u8f74\uff09\u8fd4\u56de\u4e86\u591a\u4e2a\u72ec\u7acb\u7684\u3001\u9700\u8981\u540c\u65f6\u6bd4\u8f83\u7684\u6570\u503c\u5217\uff08\u4f8b\u5982\uff0c\u6bd4\u8f83'\u5df2\u586b\u62a5\u4eba\u6570'\u548c'\u672a\u586b\u62a5\u4eba\u6570'\uff09\u3002\n - **JSON\u683c\u5f0f**: \u5fc5\u987b\u4f7f\u7528 `\"y_fields\": [\"\u6307\u6807\u52171\", \"\u6307\u6807\u52172\"]` \u6570\u7ec4\u3002\u53ef\u4ee5\u914d\u5408 `\"stack\": true` \u5b9e\u73b0\u5806\u53e0\u6548\u679c\u3002**\u4e0d\u8981**\u4f7f\u7528 `\"series_field\"`\u3002\n \n **\u6a21\u5f0f2: \u957f\u6570\u636e - \u5355\u6307\u6807\u6309\u7ef4\u5ea6\u5206\u7ec4**\n - **\u573a\u666f**: SQL\u8fd4\u56de\u7684\u6570\u636e\u4e2d\uff0c\u6709\u4e00\u5217\u662f\u7c7b\u522b/\u7ef4\u5ea6\uff08\u7528\u4e8e\u5206\u7ec4\uff09\uff0c\u53e6\u4e00\u5217\u662f\u6570\u503c\u3002\n - **JSON\u683c\u5f0f**: \u5fc5\u987b\u4f7f\u7528 `\"series_field\": \"\u7ef4\u5ea6\u5217\u540d\"` \u6765\u6307\u5b9a\u5206\u7ec4\u3002**\u4e0d\u8981**\u4f7f\u7528 `\"y_fields\"`\u3002\n \n\n **\u67f1\u72b6/\u6761\u5f62/\u6298\u7ebf\u56fe\u7684\u5750\u6807\u8f74\u5b9a\u4e49:**\n - `\"x_field\"`: **\u6c38\u8fdc**\u662f\u7c7b\u522b\u8f74\uff08\u4f8b\u5982\uff0c\u7528\u6237\u3001\u65e5\u671f\u3001\u56fd\u5bb6\uff09\u3002\n - `\"y_field\"` \u6216 `\"y_fields\"`: **\u6c38\u8fdc**\u662f\u6570\u503c\u8f74\uff08\u4f8b\u5982\uff0c\u5de5\u65f6\u3001\u6570\u91cf\u3001\u91d1\u989d\uff09\u3002\n - `\"series_field\"`: \u662f\u7528\u4e8e\u5bf9\u6bcf\u4e2a\u7c7b\u522b\u8fdb\u884c\u4e8c\u6b21\u5206\u7ec4\u7684\u7ef4\u5ea6\uff08\u4f8b\u5982\uff0c\u9879\u76ee\u7c7b\u578b\uff09\u3002\n \u5728\u751f\u6210JSON\u65f6\uff0c\u4f60\u5fc5\u987b\u4e25\u683c\u9075\u5b88\u8fd9\u4e2a\u5b9a\u4e49\uff0c\u4e0d\u8981\u4ea4\u6362\u7c7b\u522b\u548c\u6570\u503c\u7684\u89d2\u8272\u3002\n\n \n \u652f\u6301\u7684\u56fe\u8868\u7c7b\u578b\u4e3a\uff1a\u8868\u683c(table)\u3001\u67f1\u72b6\u56fe(column)\u3001\u6761\u5f62\u56fe(bar)\u3001\u6298\u7ebf\u56fe(line)\u3001\u997c\u56fe(pie)\u3002\n \u56fe\u8868\u7c7b\u578b\u9009\u62e9\u539f\u5219\uff1a\u8d8b\u52bf\u7528line\uff0c\u5206\u7c7b\u5bf9\u6bd4\u7528column/bar\uff0c\u5360\u6bd4\u7528pie\uff0c\u660e\u7ec6\u6570\u636e\u7528table\u3002\n \n \n \u6700\u7ec8\u751f\u6210\u7684JSON\u5185\u5fc5\u987b\u5305\u542b\u4e00\u4e2a\u7cbe\u7b80\u7684\u56fe\u8868\u6807\u9898\uff0c\u653e\u5728\"title\"\u5b57\u6bb5\u5185\u3002\n \n \n **\u8868\u683c (table) \u683c\u5f0f:**\n {\"type\":\"table\", \"title\": \"\u8868\u683c\u6807\u9898\", \"columns\": [{\"field\": \"SQL\u5217\u540d1\", \"name\": \"\u4e2d\u6587\u5217\u540d1\"}, ...]}\n \"field\" \u5fc5\u987b\u662fSQL\u67e5\u8be2\u7684\u5217\u540d\u3002\n \n \n **\u997c\u56fe (pie) \u683c\u5f0f (\u5355\u6307\u6807\uff0c\u65e0\u5206\u7ec4):**\n {\"type\":\"pie\", \"title\": \"\u56fe\u8868\u6807\u9898\", \"x_field\": \"\u997c\u56fe\u6247\u533a\u6807\u7b7e\u5217\", \"y_field\": \"\u997c\u56fe\u6247\u533a\u5927\u5c0f\u6570\u503c\u5217\", \"x_name\": \"\u7c7b\u522b\u4e2d\u6587\u540d\", \"y_name\": \"\u6570\u503c\u4e2d\u6587\u540d\"}\n \"x_field\" \u548c \"y_field\" \u5fc5\u987b\u662fSQL\u67e5\u8be2\u7684\u5217\u540d\u3002\n \n \n **\u67f1\u72b6/\u6761\u5f62/\u6298\u7ebf\u56fe - \u6a21\u5f0f1 (\u5bbd\u6570\u636e) \u683c\u5f0f:**\n {\"type\":\"column\", \"title\": \"\u56fe\u8868\u6807\u9898\", \"x_field\": \"X\u8f74\u5217\", \"y_fields\": [\"\u6307\u6807\u52171\", \"\u6307\u6807\u52172\"], \"stack\": true, \"x_name\": \"X\u8f74\u4e2d\u6587\u540d\", \"y_name\": \"Y\u8f74\u4e2d\u6587\u540d\", \"series_names\": {\"\u6307\u6807\u52171\": \"\u56fe\u4f8b\u540d1\", \"\u6307\u6807\u52172\": \"\u56fe\u4f8b\u540d2\"}}\n \"x_field\" \u548c \"y_fields\" \u4e2d\u7684\u5b57\u6bb5\u5fc5\u987b\u662fSQL\u67e5\u8be2\u7684\u5217\u540d\u3002\n \n \n **\u67f1\u72b6/\u6761\u5f62/\u6298\u7ebf\u56fe - \u6a21\u5f0f2 (\u957f\u6570\u636e) \u683c\u5f0f:**\n {\"type\":\"column\", \"title\": \"\u56fe\u8868\u6807\u9898\", \"x_field\": \"X\u8f74\u5217\", \"y_field\": \"Y\u8f74\u6570\u503c\u5217\", \"series_field\": \"\u5206\u7ec4\u7ef4\u5ea6\u5217\", \"x_name\": \"X\u8f74\u4e2d\u6587\u540d\", \"y_name\": \"Y\u8f74\u4e2d\u6587\u540d\", \"series_name\": \"\u5206\u7ec4\u4e2d\u6587\u540d\"}\n \"x_field\", \"y_field\", \"series_field\" \u5fc5\u987b\u662fSQL\u67e5\u8be2\u7684\u5217\u540d\u3002\n \n \n \u5982\u679c\u65e0\u6cd5\u751f\u6210\u5408\u9002\u7684JSON\u914d\u7f6e\uff0c\u5219\u8fd4\u56de\uff1a{\"type\":\"error\", \"reason\": \"\u62b1\u6b49\uff0c\u6839\u636e\u63d0\u4f9b\u7684SQL\u548c\u95ee\u9898\uff0c\u6211\u65e0\u6cd5\u751f\u6210\u5408\u9002\u7684\u56fe\u8868\u914d\u7f6e\u3002\"}\n \n\n\n\n ### \u4ee5\u4e0b\u793a\u4f8b\u5e2e\u52a9\u4f60\u7406\u89e3\u95ee\u9898\u53ca\u8fd4\u56de\u683c\u5f0f\uff0c\u4e0d\u8981\u5c06\u793a\u4f8b\u4e2d\u7684\u8868\u7ed3\u6784\u7528\u4e8e\u56de\u7b54\u3002\n \n \n SELECT `u`.`name` AS `name`, `u`.`email` AS `email`, `u`.`create_time` AS `create_time` FROM `per_user` `u` LIMIT 10\n \u67e5\u8be210\u4e2a\u7528\u6237\u4fe1\u606f\n \n \n \n {\"type\":\"table\",\"title\":\"\u7528\u6237\u4fe1\u606f\",\"columns\":[{\"field\":\"name\",\"name\":\"\u59d3\u540d\"},{\"field\":\"email\",\"name\":\"\u90ae\u7bb1\"},{\"field\":\"create_time\",\"name\":\"\u521b\u5efa\u65f6\u95f4\"}]}\n \n \n \n \n SELECT `o`.`name` AS `org_name`, COUNT(`u`.`id`) AS `user_count` FROM `per_user` `u` JOIN `per_org` `o` ON `u`.`default_oid` = `o`.`id` GROUP BY `o`.`name`\n \u997c\u56fe\u5c55\u793a\u5404\u4e2a\u7ec4\u7ec7\u7684\u4eba\u5458\u6570\u91cf\u5360\u6bd4\n pie\n \n \n {\"type\":\"pie\",\"title\":\"\u5404\u7ec4\u7ec7\u4eba\u6570\u5360\u6bd4\",\"x_field\":\"org_name\",\"y_field\":\"user_count\",\"x_name\":\"\u7ec4\u7ec7\u540d\u79f0\",\"y_name\":\"\u4eba\u6570\"}\n \n \n \n \n SELECT country, user_type, COUNT(*) AS user_count FROM users GROUP BY country, user_type\n \u6309\u56fd\u5bb6\u548c\u7528\u6237\u7c7b\u578b\u7edf\u8ba1\u7528\u6237\u6570\n column\n \n \n {\"type\":\"column\",\"title\":\"\u5404\u56fd\u4e0d\u540c\u7c7b\u578b\u7528\u6237\u6570\",\"x_field\":\"country\",\"y_field\":\"user_count\",\"series_field\":\"user_type\",\"x_name\":\"\u56fd\u5bb6\",\"y_name\":\"\u7528\u6237\u6570\",\"series_name\":\"\u7528\u6237\u7c7b\u578b\"}\n \n \n \n \n SELECT company_name, filled_count, unfilled_count FROM company_stats\n \u7edf\u8ba1\u5404\u516c\u53f87\u6708\u4efd\u7684\u586b\u62a5\u4eba\u6570\u548c\u672a\u586b\u62a5\u4eba\u6570\n column\n \n \n {\"type\":\"column\", \"title\": \"\u5404\u516c\u53f87\u6708\u4efd\u586b\u62a5\u60c5\u51b5\", \"x_field\": \"company_name\", \"y_fields\": [\"filled_count\", \"unfilled_count\"], \"stack\": true, \"x_name\": \"\u516c\u53f8\u540d\u79f0\", \"y_name\": \"\u4eba\u6570\", \"series_names\": {\"filled_count\": \"\u5df2\u586b\u62a5\", \"unfilled_count\": \"\u672a\u586b\u62a5\"}}\n \n \n" } }, "id": "420ac2a1-6755-492a-8249-167fb9f3a916", "name": "Charts Agent", "type": "@n8n/n8n-nodes-langchain.agent", "typeVersion": 1.7, "position": [ 2816, 576 ], "executeOnce": false }, { "parameters": { "options": {} }, "id": "0c8971a6-ddd9-4a30-9243-b7cf1f2904cc", "name": "Loop Entry", "type": "n8n-nodes-base.set", "typeVersion": 3, "position": [ 752, 464 ] }, { "parameters": { "conditions": { "number": [ { "value1": "={{$json.retryCount}}", "value2": "={{$json.maxRetries}}" } ] } }, "id": "3bed25f2-3a4c-41b5-887d-638c5d7245f3", "name": "If Can Retry", "type": "n8n-nodes-base.if", "typeVersion": 1, "position": [ 2112, 160 ] }, { "parameters": { "jsCode": " const prompt= $('Loop Entry').first().json;\n\n prompt.retryCount= prompt.retryCount+1; prompt.error_message+=\"\\n\\n\"+ JSON.stringify($input.all())+\"\\n\\n\";\n return prompt;" }, "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1904, 160 ], "id": "3a30c27a-ad7d-4e30-a76b-d89845e09da0", "name": "Format Error Prompt" }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 2 }, "conditions": [ { "id": "bcc7594e-b76b-4742-9944-1756090bcd5c", "leftValue": "={{ $json.message }}", "rightValue": "", "operator": { "type": "string", "operation": "exists", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 1808, 416 ], "id": "caa90f41-d000-4125-9998-ed22cabfc53f", "name": "If Error" }, { "parameters": { "contextWindowLength": 1 }, "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow", "typeVersion": 1.3, "position": [ -448, 800 ], "id": "aaa6fc4d-dbea-4314-b940-fb5ca70baf84", "name": "Search Memory" }, { "parameters": { "jsCode": "// Accept both 'question' and 'query' for compatibility with SQLBot\nconst body = $json.body || {};\nconst query = (body.question ?? body.query ?? $json.question ?? $json.query ?? '').toString();\nconst sessionId= (body.sessionId ?? body.sessionId ?? $json.sessionId ?? $json.sessionId ?? '').toString();\nreturn [\n {\n json: {\n userInput: query,\n sessionId: sessionId \n }\n }\n];" }, "id": "c3d18f75-dd39-420d-a1b2-7c814d0ec768", "name": "Extract User Input", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -736, 576 ] }, { "parameters": { "operation": "executeQuery", "query": "SELECT\n c.table_schema,\n c.table_name,\n pd.description AS table_comment,\n c.ordinal_position,\n c.column_name,\n (SELECT pg_catalog.col_description(pc.oid, c.ordinal_position::int)\n FROM pg_catalog.pg_class pc\n JOIN pg_catalog.pg_namespace pn ON pn.oid = pc.relnamespace\n WHERE pn.nspname = c.table_schema AND pc.relname = c.table_name) AS column_comment,\n c.data_type,\n c.is_nullable,\n tc.constraint_type,\n ccu.table_name AS foreign_table_name,\n ccu.column_name AS foreign_column_name\nFROM\n information_schema.columns AS c\nLEFT JOIN pg_catalog.pg_class AS pgc\n ON c.table_name = pgc.relname\nLEFT JOIN pg_catalog.pg_namespace AS pgn\n ON pgc.relnamespace = pgn.oid\nLEFT JOIN pg_catalog.pg_description AS pd\n ON pgc.oid = pd.objoid AND pd.objsubid = 0\nAND pgn.nspname = c.table_schema\nleft JOIN\n information_schema.key_column_usage AS kcu\n ON c.table_schema = kcu.table_schema AND c.table_name = kcu.table_name AND c.column_name = kcu.column_name\nLEFT JOIN\n information_schema.table_constraints AS tc\n ON kcu.constraint_name = tc.constraint_name AND kcu.table_schema = tc.table_schema\nLEFT JOIN\n information_schema.referential_constraints AS rc\n ON tc.constraint_name = rc.constraint_name\nLEFT JOIN\n information_schema.constraint_column_usage AS ccu\n ON rc.unique_constraint_name = ccu.constraint_name\nORDER BY\n c.table_name,\n c.ordinal_position;", "options": {} }, "id": "bf692e0e-366f-43a2-94b7-239d6167e903", "name": "Get DB Schema", "type": "n8n-nodes-base.postgres", "typeVersion": 2.6, "position": [ 64, 576 ], "credentials": { "postgres": { "name": "" } } }, { "parameters": { "jsCode": "/**\n * @param {Array} items - SQL\u67e5\u8be2\u8282\u70b9\u8fd4\u56de\u7684\u5b8c\u6574\u9879\u76ee\u6570\u7ec4\u3002\u6bcf\u4e2a item \u5305\u542b\u4e00\u4e2a .json \u5c5e\u6027\uff0c\u8be5\u5c5e\u6027\u624d\u662f\u771f\u6b63\u7684\u6570\u636e\u5e93\u884c\u6570\u636e\u3002\n * @returns {string} - \u683c\u5f0f\u5316\u540e\u7684Markdown\u5b57\u7b26\u4e32\u3002\n */\nfunction transformSchemaToDDL(items) {\n if (!items || items.length === 0) {\n return '### No Schema Information Provided\\n';\n }\n\n // \u7b2c\u4e00\u6b65\uff1a\u5c06\u6241\u5e73\u6570\u636e\u6309\u8868\u540d\u5206\u7ec4\uff0c\u5e76\u786e\u4fdd\u5217\u7684\u552f\u4e00\u6027\n const tables = {};\n // \u5173\u952e\u4fee\u6b63\uff1a\u904d\u5386 items\uff0c\u5e76\u4ece item.json \u4e2d\u63d0\u53d6\u884c\u6570\u636e\n for (const item of items) {\n const row = item.json; // <-- \u8fd9\u91cc\u662f\u6838\u5fc3\u4fee\u6b63\u70b9\uff01\n\n // \u5065\u58ee\u6027\u68c0\u67e5\uff1a\u5982\u679c\u67d0\u4e2aitem\u6ca1\u6709.json\uff0c\u5219\u8df3\u8fc7\n if (!row) continue;\n\n const tableName = row.table_name;\n const columnName = row.column_name;\n\n if (!tableName || !columnName) continue;\n\n // \u5982\u679c\u662f\u65b0\u8868\uff0c\u5219\u521d\u59cb\u5316\n if (!tables[tableName]) {\n tables[tableName] = {\n schema: row.table_schema,\n comment: row.table_comment,\n columns: {}, // \u4f7f\u7528\u5bf9\u8c61\u786e\u4fdd\u5217\u7684\u552f\u4e00\u6027\n foreignKeys: []\n };\n }\n\n // \u5982\u679c\u662f\u65b0\u5217\uff0c\u5219\u521b\u5efa\u5217\u7684\u5b9a\u4e49\n if (!tables[tableName].columns[columnName]) {\n tables[tableName].columns[columnName] = {\n name: columnName,\n type: row.data_type,\n comment: row.column_comment,\n isPk: false\n };\n }\n\n // \u66f4\u65b0\u8be5\u5217\u7684\u7ea6\u675f\u4fe1\u606f\n if (row.constraint_type === 'PRIMARY KEY') {\n tables[tableName].columns[columnName].isPk = true;\n }\n \n // \u8bb0\u5f55\u5916\u952e\u5173\u7cfb\uff08\u5e76\u53bb\u91cd\uff09\n if (row.constraint_type === 'FOREIGN KEY') {\n const fkExists = tables[tableName].foreignKeys.some(\n fk => fk.column === columnName && fk.refTable === row.foreign_table_name\n );\n if (!fkExists) {\n tables[tableName].foreignKeys.push({\n column: columnName,\n refTable: row.foreign_table_name,\n refColumn: row.foreign_column_name\n });\n }\n }\n }\n \n // \u7528\u4e8e\u8f6c\u4e49SQL\u6ce8\u91ca\u4e2d\u7684\u5355\u5f15\u53f7\n const escapeComment = (comment) => {\n if (!comment) return '';\n return ` COMMENT '${comment.replace(/'/g, \"''\")}'`;\n };\n\n // \u7b2c\u4e8c\u6b65\uff1a\u904d\u5386\u7ed3\u6784\u5316\u6570\u636e\uff0c\u751f\u6210DDL\u5b57\u7b26\u4e32\n const ddlStrings = [];\n for (const tableName in tables) {\n const tableData = tables[tableName];\n \n let tableHeader = `-- Table: \"${tableData.schema}\".\"${tableName}\"`;\n if (tableData.comment) {\n tableHeader += ` (Comment: ${tableData.comment})`;\n }\n\n const createTableStart = `CREATE TABLE \"${tableData.schema}\".\"${tableName}\" (`;\n \n const definitions = [];\n\n // \u904d\u5386\u5217\u5bf9\u8c61\n for (const column of Object.values(tableData.columns)) {\n let colLine = ` \"${column.name}\" ${column.type}`;\n if (column.isPk) {\n colLine += ' PRIMARY KEY';\n }\n colLine += escapeComment(column.comment);\n definitions.push(colLine);\n }\n \n // \u904d\u5386\u5916\u952e\n for (const fk of tableData.foreignKeys) {\n let fkLine = ` FOREIGN KEY (\"${fk.column}\") REFERENCES \"${tableData.schema}\".\"${fk.refTable}\"(\"${fk.refColumn}\")`;\n definitions.push(fkLine);\n }\n \n const createTableBody = definitions.join(',\\n');\n const createTableEnd = ');';\n\n const fullTableDDL = `${tableHeader}\\n${createTableStart}\\n${createTableBody}\\n${createTableEnd}`;\n ddlStrings.push(fullTableDDL);\n }\n\n return ddlStrings.join('\\n\\n');\n}\n\n\n// \u8c03\u7528\u51fd\u6570\u8fdb\u884c\u8f6c\u6362\nconst schemaMarkdown = transformSchemaToDDL($input.all());\nreturn [{ json: { schema_markdown: schemaMarkdown,schema_name:$input.all()[0].json.table_schema } }];" }, "id": "80e0c2c9-2fbe-46b5-8905-11e77b9785bb", "name": "Format Schema", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 288, 576 ] }, { "parameters": { "jsCode": "//const schemaMarkdown = $input.item.json.schema_markdown;\nconst userInput = $('Extract User Input').first().json.userInput;\nconst sessionId = $('Extract User Input').first().json.sessionId;\nconst history= $('Format History').first().json.formattedHistory;\n\n\nconst outputItem = $input.item;\noutputItem.json.userInput = userInput;\noutputItem.json.sessionId= sessionId;\noutputItem.json.history= history;\noutputItem.json.current_time=new Date();\noutputItem.json.retryCount = 0;\noutputItem.json.maxRetries = 3;\noutputItem.json.error_message='';\nreturn outputItem;" }, "id": "b081caba-f752-47ce-a8da-22b0dbc9bcd1", "name": "Prepare Initial Prompt", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 512, 576 ] }, { "parameters": { "operation": "executeQuery", "query": "={{ $json.output.parseJson().sql }}", "options": {} }, "id": "ddc73eae-3fa4-4352-a010-b2aa33fd288b", "name": "Execute Generated SQL", "type": "n8n-nodes-base.postgres", "typeVersion": 2.6, "position": [ 1600, 432 ], "alwaysOutputData": true, "executeOnce": false, "retryOnFail": false, "credentials": { "postgres": { "name": "" } }, "onError": "continueRegularOutput" }, { "parameters": {}, "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow", "typeVersion": 1.3, "position": [ 1104, 688 ], "id": "ec708afd-1360-4084-9e35-d5205b866482", "name": "Insert Memory" }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 2 }, "conditions": [ { "id": "955a825e-5f01-4019-a71b-05433daa0a24", "leftValue": "={{ $json.sql.parseJson().success}}", "rightValue": "false", "operator": { "type": "boolean", "operation": "false", "singleValue": true } }, { "id": "bb72144b-aec1-4af6-a842-5d7be39200fa", "leftValue": "={{ $json.sql.parseJson()['chart_type']}}", "rightValue": "table", "operator": { "type": "string", "operation": "equals", "name": "filter.operator.equals" } } ], "combinator": "or" }, "options": {} }, "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 2656, 336 ], "id": "e48da06c-09b5-402d-946e-ad837655012e", "name": "If Charts" }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 2 }, "conditions": [ { "id": "5fca89e7-a943-4292-8e49-fed0ff9bc202", "leftValue": "={{ $json.output.parseJson().success }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 1344, 512 ], "id": "645d0667-9442-42f6-97f0-1dff6fda64e6", "name": "If Ai Error" }, { "parameters": { "modelName": "models/gemini-2.5-pro", "options": { "temperature": 0.2 } }, "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini", "typeVersion": 1, "position": [ 832, 688 ], "id": "6833e773-39ff-4531-bef2-facc4b248078", "name": "Google Gemini Chat Model", "credentials": { "googlePalmApi": { "name": "" } } } ], "connections": { "AI Agent": { "main": [ [ { "node": "If Ai Error", "type": "main", "index": 0 } ] ] }, "Webhook": { "main": [ [ { "node": "Extract User Input", "type": "main", "index": 0 } ] ] }, "Format Success Result": { "main": [ [ { "node": "If Charts", "type": "main", "index": 0 } ] ] }, "Chat Memory Manager": { "main": [ [ { "node": "Format History", "type": "main", "index": 0 } ] ] }, "Format History": { "main": [ [ { "node": "Get DB Schema", "type": "main", "index": 0 } ] ] }, "DeepSeek Chat Model": { "ai_languageModel": [ [ { "node": "AI Agent", "type": "ai_languageModel", "index": 0 } ] ] }, "DeepSeek Chat Model1": { "ai_languageModel": [ [ { "node": "Charts Agent", "type": "ai_languageModel", "index": 0 } ] ] }, "Format Charts": { "main": [ [ { "node": "Return Final Response", "type": "main", "index": 0 } ] ] }, "Charts Agent": { "main": [ [ { "node": "Format Charts", "type": "main", "index": 0 } ] ] }, "Loop Entry": { "main": [ [ { "node": "AI Agent", "type": "main", "index": 0 } ] ] }, "If Can Retry": { "main": [ [ { "node": "Loop Entry", "type": "main", "index": 0 } ], [ { "node": "Format Success Result", "type": "main", "index": 0 } ] ] }, "Format Error Prompt": { "main": [ [ { "node": "If Can Retry", "type": "main", "index": 0 } ] ] }, "If Error": { "main": [ [ { "node": "Format Error Prompt", "type": "main", "index": 0 } ], [ { "node": "Format Success Result", "type": "main", "index": 0 } ] ] }, "Search Memory": { "ai_memory": [ [ { "node": "Chat Memory Manager", "type": "ai_memory", "index": 0 } ] ] }, "Extract User Input": { "main": [ [ { "node": "Chat Memory Manager", "type": "main", "index": 0 } ] ] }, "Get DB Schema": { "main": [ [ { "node": "Format Schema", "type": "main", "index": 0 } ] ] }, "Format Schema": { "main": [ [ { "node": "Prepare Initial Prompt", "type": "main", "index": 0 } ] ] }, "Prepare Initial Prompt": { "main": [ [ { "node": "Loop Entry", "type": "main", "index": 0 } ] ] }, "Execute Generated SQL": { "main": [ [ { "node": "If Error", "type": "main", "index": 0 } ], [] ] }, "Insert Memory": { "ai_memory": [ [ { "node": "AI Agent", "type": "ai_memory", "index": 0 } ] ] }, "If Charts": { "main": [ [ { "node": "Format Charts", "type": "main", "index": 0 } ], [ { "node": "Charts Agent", "type": "main", "index": 0 } ] ] }, "If Ai Error": { "main": [ [ { "node": "Execute Generated SQL", "type": "main", "index": 0 } ], [ { "node": "Format Charts", "type": "main", "index": 0 } ] ] } }, "active": true, "settings": { "executionOrder": "v1" }, "versionId": "6852d28d-17f3-44d5-b9d4-4bdadbee8b44", "meta": { "templateCredsSetupCompleted": true }, "id": "TLCOG251r1ecPsmR", "tags": [] }