上下文混合RAG AI文案
高级
这是一个AI RAG, Multimodal AI领域的自动化工作流，包含 76 个节点。主要使用 If, Set, Code, Wait, Crypto 等节点。 Google Drive到Supabase上下文向量数据库同步用于RAG应用
前置要求
- •Supabase URL 和 API Key
- •Google Drive API 凭证
- •可能需要目标 API 的认证凭证
- •OpenAI API Key
使用的节点 (76)
If
Set
Code
Wait
Crypto
Switch
SplitOut
Supabase
Aggregate
StickyNote
GoogleDrive
HttpRequest
SplitInBatches
Agent
ExecuteWorkflow
ExtractFromFile
ChainLlm
GoogleDriveTrigger
ChatTrigger
LmChatOpenAi
ToolWorkflow
ExecuteWorkflowTrigger
EmbeddingsOpenAi
MemoryBufferWindow
VectorStoreSupabase
OutputParserStructured
DocumentDefaultDataLoader
TextSplitterRecursiveCharacterTextSplitter
工作流预览
可视化展示节点连接关系，支持缩放和平移
导出工作流
复制以下 JSON 配置到 n8n 导入，即可使用此工作流
{
"id": "XwFvFryyo4goPzpd",
"meta": {
"instanceId": "00761fd5aea81495387b0889e15912dcc912b73b7bf62f5ca3898afbd7a79723",
"templateCredsSetupCompleted": true
},
"name": "上下文混合 RAG AI 文案",
"tags": [
{
"id": "YINdrIOThMQjiVkB",
"name": "RAG",
"createdAt": "2025-06-18T21:07:48.174Z",
"updatedAt": "2025-06-18T21:07:48.174Z"
},
{
"id": "j0SNhalFSbPAhdWo",
"name": "n8n creator",
"createdAt": "2025-09-02T01:40:23.866Z",
"updatedAt": "2025-09-02T01:40:23.866Z"
}
],
"nodes": [
{
"id": "c1422e6a-289f-4499-b19b-62df452010b2",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
-2544,
-736
],
"parameters": {
"options": {
"systemMessage": "Only generate answers based on the results from the connected database. Do no under any circumstance, get answers from anywhere else.\nfor every query check the database to see if you can find an answer. If you can not or are not sure, then say 'Sorry, I don’t know'. Never come up with answers. Only get answers from the database"
}
},
"typeVersion": 2
},
{
"id": "efb0bd4c-0b6d-4b96-8e8d-d1b511174151",
"name": "当收到聊天消息时",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
-2784,
-736
],
"webhookId": "f4516070-1da1-41ad-8320-bd3a31cddf12",
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "3c285b17-d4f0-4e8e-809b-38be2a5ede94",
"name": "简单记忆",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
-2544,
-528
],
"parameters": {
"contextWindowLength": 10
},
"typeVersion": 1.3
},
{
"id": "8a624394-5019-4a67-a31c-c56fad7b1406",
"name": "OpenAI 聊天模型",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-2704,
-528
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1",
"cachedResultName": "gpt-4.1"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "QsPyEUltWeliSiFb",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "317048f7-1423-4922-ac19-ad1b79152359",
"name": "Google Drive",
"type": "n8n-nodes-base.googleDrive",
"position": [
-3536,
304
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "KZY6CHPvoIbIxMKd",
"name": "Google Drive account"
}
},
"typeVersion": 3
},
{
"id": "27074acb-2256-4b79-a093-df35755ca0e8",
"name": "搜索记录管理器",
"type": "n8n-nodes-base.supabase",
"position": [
-2608,
304
],
"parameters": {
"limit": 1,
"filters": {
"conditions": [
{
"keyName": "gd_file_id",
"keyValue": "={{ $('Loop Over Items').item.json.id }}",
"condition": "eq"
}
]
},
"tableId": "record_managerhs",
"operation": "getAll"
},
"credentials": {
"supabaseApi": {
"id": "bi5dJhIwrvuB6YQA",
"name": "CHRAG"
}
},
"typeVersion": 1,
"alwaysOutputData": true
},
{
"id": "cc825e4c-1f68-4688-8e32-5d08b3aab1ac",
"name": "在记录管理器中创建行",
"type": "n8n-nodes-base.supabase",
"position": [
-1808,
48
],
"parameters": {
"tableId": "record_managerhs",
"fieldsUi": {
"fieldValues": [
{
"fieldId": "gd_file_id",
"fieldValue": "={{ $('Loop Over Items').item.json.id }}"
},
{
"fieldId": "hash",
"fieldValue": "={{ $('Generate Hash').item.json.hash }}"
}
]
}
},
"credentials": {
"supabaseApi": {
"id": "bi5dJhIwrvuB6YQA",
"name": "CHRAG"
}
},
"typeVersion": 1
},
{
"id": "39445058-69b3-4bf1-8236-99a4a55e7d86",
"name": "Google Calendar MCP",
"type": "n8n-nodes-base.switch",
"position": [
-2416,
288
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "does not exist",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "231bfd13-5f93-4801-b0f5-9ff2d949c165",
"operator": {
"type": "object",
"operation": "empty",
"singleValue": true
},
"leftValue": "={{ $json }}",
"rightValue": ""
}
]
},
"renameOutput": true
},
{
"outputKey": "modified",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "b311878c-297f-4d5b-ba2f-f1babb9c9f7b",
"operator": {
"type": "string",
"operation": "notEquals"
},
"leftValue": "={{ $json.hash }}",
"rightValue": "={{ $('Generate Hash').item.json.hash }}"
}
]
},
"renameOutput": true
},
{
"outputKey": "exist",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "dc26f05e-859a-40a4-b0e3-49abc55397a5",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $('Generate Hash').item.json.hash }}",
"rightValue": "={{ $json.hash }}"
}
]
},
"renameOutput": true
}
]
},
"options": {},
"looseTypeValidation": true
},
"typeVersion": 3.2
},
{
"id": "10062467-974d-4103-aeb3-bff32d0c6e3f",
"name": "删除先前向量",
"type": "n8n-nodes-base.supabase",
"position": [
-2016,
368
],
"parameters": {
"tableId": "documentshs",
"operation": "delete",
"filterType": "string",
"filterString": "=metadata->>file_id=eq.{{ $('Loop Over Items').item.json.id }}"
},
"credentials": {
"supabaseApi": {
"id": "GZCrvWKfz1aQNVve",
"name": "Supabase - RAG"
}
},
"typeVersion": 1,
"alwaysOutputData": true
},
{
"id": "e145b247-04d6-40f9-b3ab-7ad034aa0a31",
"name": "生成哈希",
"type": "n8n-nodes-base.crypto",
"position": [
-2848,
304
],
"parameters": {
"type": "SHA256",
"value": "={{ $json.text }}",
"dataPropertyName": "hash"
},
"typeVersion": 1
},
{
"id": "40aa27bb-4577-4d2d-abc4-0ed103fc0cbd",
"name": "更新记录管理器",
"type": "n8n-nodes-base.supabase",
"position": [
-1600,
368
],
"parameters": {
"filters": {
"conditions": [
{
"keyName": "id",
"keyValue": "={{ $('Search Record Manager').item.json.id }}",
"condition": "eq"
}
]
},
"tableId": "record_managerhs",
"fieldsUi": {
"fieldValues": [
{
"fieldId": "hash",
"fieldValue": "={{ $('Generate Hash').item.json.hash }}"
}
]
},
"operation": "update"
},
"credentials": {
"supabaseApi": {
"id": "GZCrvWKfz1aQNVve",
"name": "Supabase - RAG"
}
},
"typeVersion": 1
},
{
"id": "f0c2dcd5-5fe8-4968-a510-0f7d997d3b2f",
"name": "聚合",
"type": "n8n-nodes-base.aggregate",
"position": [
-1824,
368
],
"parameters": {
"options": {},
"aggregate": "aggregateAllItemData"
},
"typeVersion": 1
},
{
"id": "56bc70d8-aba3-4534-be6b-05cce089505a",
"name": "Basic LLM Chain",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
-1248,
272
],
"parameters": {
"text": "=# File Name\n{{ $('Loop Over Items').item.json.name}}\n\n# File Content\n{{ $('Set Text').item.json.text.split(/\\s+/).length > 500\n? $('Set Text').item.json.text.split(/\\s+/).slice(0, 500).join(' ') + '...'\n: $('Set Text').item.json.text}}",
"batching": {},
"messages": {
"messageValues": [
{
"message": "=Based on the provided file name and file contents, extract out a 1 sentence description of what the document is about and classify the document based on motorsport category. \n\n Only output JSON in the following format \n\n{ \n\"document_summary\": \"document summary\"\n}\n\nIf you are unsure, just output N/A in the field. \n\n"
}
]
},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.7
},
{
"id": "c99060a8-fe04-44c8-86ad-76ad9c0f2f6c",
"name": "结构化输出解析器",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
-1072,
432
],
"parameters": {
"jsonSchemaExample": "{ \n\"documentSummary\": \"document summary\"\n} "
},
"typeVersion": 1.3
},
{
"id": "478f6320-0c37-478c-8321-8083e5d903fe",
"name": "OpenAI 聊天模型1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-1264,
432
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1",
"cachedResultName": "gpt-4.1"
},
"options": {
"responseFormat": "json_object"
}
},
"credentials": {
"openAiApi": {
"id": "QsPyEUltWeliSiFb",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "3e9028df-ff29-4599-9ae9-c08a3811f047",
"name": "从文件提取",
"type": "n8n-nodes-base.extractFromFile",
"position": [
-3344,
304
],
"parameters": {
"options": {},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "df98c1e9-b29c-4558-bbe4-a8925fd5a2f1",
"name": "设置文本",
"type": "n8n-nodes-base.set",
"position": [
-3104,
304
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "766bf659-155f-4d60-a033-085b3a752933",
"name": "text",
"type": "string",
"value": "={{ $json.text }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "258005cc-104e-4e31-96f0-a3fae138da93",
"name": "## 如何实施此 n8n 工作流",
"type": "n8n-nodes-base.splitInBatches",
"position": [
-2224,
976
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "84ac45bc-27c8-4fce-8e03-be8c9cf18fe8",
"name": "搜索记录管理器1",
"type": "n8n-nodes-base.supabase",
"position": [
-1936,
976
],
"parameters": {
"limit": 1,
"filters": {
"conditions": [
{
"keyName": "gd_file_id",
"keyValue": "={{ $('Loop Over Items1').item.json.id }}",
"condition": "eq"
}
]
},
"tableId": "record_managerhs",
"operation": "getAll"
},
"credentials": {
"supabaseApi": {
"id": "bi5dJhIwrvuB6YQA",
"name": "CHRAG"
}
},
"typeVersion": 1,
"alwaysOutputData": true
},
{
"id": "81fc8e77-f1fb-4914-87b7-489bdcdf3f9d",
"name": "如果 1",
"type": "n8n-nodes-base.if",
"position": [
-1728,
976
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "21ca0db4-5ca4-49e8-86c1-9e09c469122d",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
},
"leftValue": "={{$json}}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "9561c9dd-0b82-4cdb-bed0-a3307d206394",
"name": "删除先前向量1",
"type": "n8n-nodes-base.supabase",
"position": [
-1472,
976
],
"parameters": {
"tableId": "documentshs",
"operation": "delete",
"filterType": "string",
"filterString": "=metadata->>file_id=eq.{{ $('Loop Over Items1').item.json.id }}"
},
"credentials": {
"supabaseApi": {
"id": "bi5dJhIwrvuB6YQA",
"name": "CHRAG"
}
},
"typeVersion": 1,
"alwaysOutputData": true
},
{
"id": "31cc03e7-50db-4c6d-b266-136225457218",
"name": "聚合 1",
"type": "n8n-nodes-base.aggregate",
"position": [
-1280,
976
],
"parameters": {
"options": {},
"aggregate": "aggregateAllItemData"
},
"typeVersion": 1
},
{
"id": "0c76dd9b-be10-4fdd-8536-ea3eb75a6cba",
"name": "从记录管理器1删除记录",
"type": "n8n-nodes-base.supabase",
"position": [
-1072,
976
],
"parameters": {
"filters": {
"conditions": [
{
"keyName": "id",
"keyValue": "={{ $('Search Record Manager1').item.json.id }}",
"condition": "eq"
}
]
},
"tableId": "record_managerhs",
"operation": "delete"
},
"credentials": {
"supabaseApi": {
"id": "bi5dJhIwrvuB6YQA",
"name": "CHRAG"
}
},
"typeVersion": 1
},
{
"id": "c41851a0-ba52-432d-ae00-752bb630cead",
"name": "Google Drive2",
"type": "n8n-nodes-base.googleDrive",
"position": [
-848,
976
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $('Loop Over Items1').item.json.id }}"
},
"options": {},
"operation": "deleteFile"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "KZY6CHPvoIbIxMKd",
"name": "Google Drive account"
}
},
"typeVersion": 3
},
{
"id": "03516980-317e-483d-9471-6cf9e3148415",
"name": "监控 GD 回收站",
"type": "n8n-nodes-base.googleDriveTrigger",
"position": [
-2432,
976
],
"parameters": {
"event": "fileCreated",
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"mode": "list",
"value": "1gwf7pIH8X5wU-i0YMw-j7qPSA4MnA40L",
"cachedResultUrl": "https://drive.google.com/drive/folders/1gwf7pIH8X5wU-i0YMw-j7qPSA4MnA40L",
"cachedResultName": "Trash"
}
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "KZY6CHPvoIbIxMKd",
"name": "Google Drive account"
}
},
"typeVersion": 1
},
{
"id": "a791c6a2-1311-40cc-837e-c875425774cc",
"name": "监控 GD RAG 文件",
"type": "n8n-nodes-base.googleDriveTrigger",
"position": [
-3984,
304
],
"parameters": {
"event": "fileCreated",
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"mode": "list",
"value": "1e1Af14X5nlPq6oVEqbHs4h7pQtYktzAM",
"cachedResultUrl": "https://drive.google.com/drive/folders/1e1Af14X5nlPq6oVEqbHs4h7pQtYktzAM",
"cachedResultName": "RAG Files"
}
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "KZY6CHPvoIbIxMKd",
"name": "Google Drive account"
}
},
"typeVersion": 1
},
{
"id": "3024e04e-86c4-43d6-819d-22f45ef40750",
"name": "当被其他工作流执行时",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
-2016,
-544
],
"parameters": {
"workflowInputs": {
"values": [
{
"name": "query"
}
]
}
},
"typeVersion": 1.1
},
{
"id": "5da16ea7-5c2c-4326-8069-7228ea20041f",
"name": "查询向量存储",
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"position": [
-2272,
-512
],
"parameters": {
"workflowId": {
"__rl": true,
"mode": "list",
"value": "XwFvFryyo4goPzpd",
"cachedResultName": "Contextual Hybrid RAG AI copy"
},
"description": "调用此工具从我们的向量数据库获取知识",
"workflowInputs": {
"value": {
"query": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('query', ``, 'string') }}"
},
"schema": [
{
"id": "query",
"type": "string",
"display": true,
"required": false,
"displayName": "query",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"query"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
}
},
"typeVersion": 2.2
},
{
"id": "467f3d3b-8727-413b-aa8d-7547ac7d8a68",
"name": "遍历项目",
"type": "n8n-nodes-base.splitInBatches",
"position": [
-3776,
304
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "7d2d4e71-ce5f-4e08-a5fb-2ca01d17e6a6",
"name": "设置用于分块的文本",
"type": "n8n-nodes-base.set",
"position": [
-864,
272
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "5fb33f33-8d7f-467e-ab8b-784c411b63b2",
"name": "content",
"type": "string",
"value": "={{ $('Set Text').item.json.text }}"
},
{
"id": "d0fdcb3c-915f-4e39-93de-ac8244415be5",
"name": "documentSummary",
"type": "string",
"value": "={{ $json.output.document_summary }}"
},
{
"id": "5ffe4726-56f1-4478-9f89-ba862efce940",
"name": "file_id",
"type": "string",
"value": "={{ $('Loop Over Items').item.json.id }}"
},
{
"id": "df951786-5196-4590-9e32-fed42ef35200",
"name": "fileName",
"type": "string",
"value": "={{ $('Loop Over Items').item.json.name }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "9a68682b-7a2f-40ca-91a9-e0d935ec7ed3",
"name": "便签1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-4016,
144
],
"parameters": {
"width": 160,
"height": 304,
"content": "### 监控 GD 文件夹"
},
"typeVersion": 1
},
{
"id": "22acc35b-1370-450f-90f2-ff4a2c9f61e4",
"name": "便签 6",
"type": "n8n-nodes-base.stickyNote",
"position": [
-3136,
144
],
"parameters": {
"width": 160,
"height": 300,
"content": "### 设置文本"
},
"typeVersion": 1
},
{
"id": "cb0d4e98-3716-4bba-8f33-a1c0ee5224a7",
"name": "便签 7",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2896,
144
],
"parameters": {
"width": 172,
"height": 308,
"content": "### 基于文本生成哈希。如果文本改变，我们将得到不同的哈希"
},
"typeVersion": 1
},
{
"id": "6f0493ae-8973-48c8-9338-f62d1b826445",
"name": "## 为什么选择 4o 模型？👆",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2656,
144
],
"parameters": {
"width": 188,
"height": 308,
"content": "### 搜索记录管理器，查看数据库中是否有任何文件具有相同的文件 ID。如果有，它将返回哈希值"
},
"typeVersion": 1
},
{
"id": "6336a34a-fade-435c-b0a7-5257b48c5579",
"name": "便签 9",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2432,
112
],
"parameters": {
"width": 180,
"height": 340,
"content": "### 比较生成的哈希和（如果存在）记录管理器搜索中的哈希，以确定文件是否存在或是否被修改"
},
"typeVersion": 1
},
{
"id": "be85f58e-3cff-42f7-b1ff-d1f22c781961",
"name": "便签10",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2080,
256
],
"parameters": {
"width": 640,
"height": 280,
"content": "### 如果文档被修改，我们删除与该 Google ID 相关的所有向量，并更新记录管理器 ID 和哈希"
},
"typeVersion": 1
},
{
"id": "79ee3377-d001-4bd7-8d25-c48e5676aff7",
"name": "便签11",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1328,
176
],
"parameters": {
"width": 380,
"height": 220,
"content": "### 为元数据创建文档摘要"
},
"typeVersion": 1
},
{
"id": "2943dad5-ae6b-4fde-a293-eb8e319bc41b",
"name": "便签12",
"type": "n8n-nodes-base.stickyNote",
"position": [
-896,
176
],
"parameters": {
"width": 160,
"height": 224,
"content": "### 设置要发送到子工作流的文本"
},
"typeVersion": 1
},
{
"id": "6109b822-9860-4a85-860b-15dd4494bac7",
"name": "便签 14",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2464,
864
],
"parameters": {
"width": 156,
"height": 280,
"content": "### 监控 GD 回收站文件夹"
},
"typeVersion": 1
},
{
"id": "4522d72b-9a92-4614-a2c8-f6a739d2169d",
"name": "便签 15",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1984,
864
],
"parameters": {
"width": 192,
"height": 264,
"content": "### 根据相应的 GD 文件 ID 搜索记录管理器"
},
"typeVersion": 1
},
{
"id": "c57592c9-e02e-4861-a1e3-189f3b24f7cf",
"name": "便签16",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1760,
864
],
"parameters": {
"width": 160,
"height": 264,
"content": "### 检查此 ID 是否存在记录"
},
"typeVersion": 1
},
{
"id": "9af264c1-de52-4fd7-9366-7d573499b02a",
"name": "便签17",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1520,
864
],
"parameters": {
"width": 580,
"height": 264,
"content": "### 从 supabase 删除记录"
},
"typeVersion": 1
},
{
"id": "0403746d-e354-4d88-93d4-a05f9faa4aea",
"name": "便签18",
"type": "n8n-nodes-base.stickyNote",
"position": [
-880,
864
],
"parameters": {
"width": 150,
"height": 264,
"content": "### 从 GD 删除文件"
},
"typeVersion": 1
},
{
"id": "d48e00db-570d-41b5-a5db-4435059fe3ec",
"name": "便签19",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2304,
-624
],
"parameters": {
"width": 1020,
"height": 240,
"content": "## 使用工作流查询搜索 Supabase 数据库工具"
},
"typeVersion": 1
},
{
"id": "1af9acb3-e6a8-435d-9d91-cb84c5fd608b",
"name": "便签20",
"type": "n8n-nodes-base.stickyNote",
"position": [
-688,
192
],
"parameters": {
"width": 150,
"height": 248,
"content": "### 设置数据"
},
"typeVersion": 1
},
{
"id": "936e7ead-1a8c-4337-b784-5732ef2784ac",
"name": "便签",
"type": "n8n-nodes-base.stickyNote",
"position": [
-6000,
-16
],
"parameters": {
"width": 752,
"height": 800,
"content": "## 设置 Supabase"
},
"typeVersion": 1
},
{
"id": "76cf1951-f712-4d05-ab00-c5201a4bdf15",
"name": "便签2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-7456,
-784
],
"parameters": {
"width": 656,
"height": 2416,
"content": "# documentHS"
},
"typeVersion": 1
},
{
"id": "ae127c8a-15e8-485a-913b-932e7a3f0f15",
"name": "便签3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-6784,
-784
],
"parameters": {
"width": 592,
"height": 224,
"content": "# record_managerHS 代码"
},
"typeVersion": 1
},
{
"id": "4e8a1b14-2fd5-4dfc-89f4-73898134d384",
"name": "边缘函数",
"type": "n8n-nodes-base.httpRequest",
"position": [
-1552,
-544
],
"parameters": {
"url": "Your Edge Function URL Here",
"method": "POST",
"options": {
"redirect": {
"redirect": {}
}
},
"jsonBody": "={\n \"query_text\": \"{{ $('When Executed by Another Workflow').item.json.query }}\",\n \"query_embedding\": [{{ $json.data[0].embedding }}],\n \"match_count\": 5, \n \"full_text_weight\": 1.0,\n \"semantic_weight\": 1.0,\n \"rrf_k\": 50\n } ",
"sendBody": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "T59KJDlDMiYYary2",
"name": "Supabase CHRAG"
}
},
"typeVersion": 4.2,
"alwaysOutputData": true
},
{
"id": "cf18ef2b-6044-4526-9f0f-b1ec4d7a547d",
"name": "调用我的子工作流",
"type": "n8n-nodes-base.executeWorkflow",
"position": [
-656,
336
],
"parameters": {
"options": {},
"workflowId": {
"__rl": true,
"mode": "list",
"value": "OB2T8YYdXtHcujuT",
"cachedResultName": "My Sub-workflow"
},
"workflowInputs": {
"value": {
"content": "={{ $json.content }}",
"file_id": "={{ $json.file_id }}",
"fileName": "={{ $json.fileName }}",
"documentSummary": "={{ $json.documentSummary }}"
},
"schema": [
{
"id": "content",
"display": true,
"removed": false,
"required": false,
"displayName": "content",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "documentSummary",
"display": true,
"removed": false,
"required": false,
"displayName": "documentSummary",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "file_id",
"display": true,
"removed": false,
"required": false,
"displayName": "file_id",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "fileName",
"display": true,
"removed": false,
"required": false,
"displayName": "fileName",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"content",
"documentSummary",
"file_id",
"fileName"
],
"attemptToConvertTypes": false,
"convertFieldsToString": true
}
},
"typeVersion": 1.2
},
{
"id": "61e693a0-bebc-4f32-8531-67110fc08e38",
"name": "Supabase 向量存储1",
"type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
"position": [
1440,
336
],
"parameters": {
"mode": "insert",
"options": {},
"tableName": {
"__rl": true,
"mode": "list",
"value": "documentshs",
"cachedResultName": "documentshs"
}
},
"credentials": {
"supabaseApi": {
"id": "GZCrvWKfz1aQNVve",
"name": "Supabase - RAG"
}
},
"typeVersion": 1.3
},
{
"id": "7588feea-e4d2-4a67-91a8-2a35d4439293",
"name": "嵌入 OpenAI1",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
1440,
512
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "QsPyEUltWeliSiFb",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "db23a77d-2805-421d-a3c0-43de5a78e0a5",
"name": "默认数据加载器",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
1568,
528
],
"parameters": {
"options": {
"metadata": {
"metadataValues": [
{
"name": "file_id",
"value": "={{ $('Metadata').item.json.file_id }}"
},
{
"name": "motorsport_category",
"value": "={{ $('Metadata').item.json.motorsportCategory }}"
},
{
"name": "file_name",
"value": "={{ $('Metadata').item.json.fileName }}"
},
{
"name": "file_summary",
"value": "={{ $('Metadata').item.json.documentSummary }}"
}
]
}
},
"textSplittingMode": "custom"
},
"typeVersion": 1.1
},
{
"id": "fa1ce78e-ef3c-45e9-9b89-b6afa3e3a119",
"name": "递归字符文本分割器",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"position": [
1536,
656
],
"parameters": {
"options": {},
"chunkSize": 1400
},
"typeVersion": 1
},
{
"id": "c4771f8f-dabe-4815-8fe2-d862234cbec7",
"name": "递归分割器2",
"type": "n8n-nodes-base.code",
"position": [
-80,
336
],
"parameters": {
"mode": "runOnceForEachItem",
"jsCode": "const chunkSize = 1000;\nconst chunkOverlap = 200;\nconst text = $input.item.json.content.replace(/\\n/, '');\n\nconst chunks = [];\nlet remainingText = text;\n\nwhile (remainingText.length > 0) {\n let splitPoint;\n\n // Try splitting at paragraph level first\n splitPoint = remainingText.lastIndexOf(\"\\n\\n\", chunkSize);\n \n // If no paragraph split, try splitting at sentence level\n if (splitPoint === -1) {\n splitPoint = remainingText.lastIndexOf(\". \", chunkSize);\n }\n\n // If no sentence split, try splitting at word level\n if (splitPoint === -1) {\n splitPoint = remainingText.lastIndexOf(\" \", chunkSize);\n }\n\n // If still no split point, force cut at chunkSize\n if (splitPoint === -1 || splitPoint < chunkSize * 0.5) { \n splitPoint = chunkSize; // Hard split if no good split point\n }\n\n // Extract chunk and adjust remaining text with overlap\n let chunk = remainingText.substring(0, splitPoint).trim();\n chunks.push(chunk);\n\n // Move the pointer forward while keeping the overlap\n remainingText = remainingText.substring(Math.max(0, splitPoint - chunkOverlap)).trim();\n\n // Break if remaining text is too small to form another chunk\n if (remainingText.length < chunkSize * 0.2) {\n chunks.push(remainingText);\n break;\n }\n}\n\nreturn { chunks };"
},
"typeVersion": 2
},
{
"id": "0969dc28-0e90-47ad-9dde-b4425978a6eb",
"name": "拆分输出",
"type": "n8n-nodes-base.splitOut",
"position": [
128,
336
],
"parameters": {
"options": {},
"fieldToSplitOut": "chunks"
},
"typeVersion": 1
},
{
"id": "b279aabb-d27f-44d4-9290-e0bf9abca567",
"name": "设置用于嵌入的块",
"type": "n8n-nodes-base.set",
"position": [
912,
336
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "caed5bb3-bd1e-475f-94ad-db0b73cdedf0",
"name": "text",
"type": "string",
"value": "={{ $json.text }} \n"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "2f58e5f1-afe1-4e34-8cf1-e02f932a2e99",
"name": "元数据",
"type": "n8n-nodes-base.set",
"position": [
-288,
336
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "93527bdc-6f91-4942-b5da-d7d5f1a67f9d",
"name": "content",
"type": "string",
"value": "={{ $json.content }}"
},
{
"id": "15ac4402-e7a1-40fc-a45d-bafd8302358a",
"name": "documentSummary",
"type": "string",
"value": "={{ $json.documentSummary }}"
},
{
"id": "79781e9e-8d64-4ebb-b96a-5d9954e62939",
"name": "motorsportCategory",
"type": "string",
"value": "={{ $json.motorsportCategory }}"
},
{
"id": "ca42a5a1-d11b-4a1e-a9f1-b696d31b4251",
"name": "file_id",
"type": "string",
"value": "={{ $json.file_id }}"
},
{
"id": "97242570-a638-454d-8d5e-62a1eb6c8376",
"name": "fileName",
"type": "string",
"value": "={{ $json.fileName }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "02d36503-b3ad-451b-8f90-9ee50d9e3c53",
"name": "等待",
"type": "n8n-nodes-base.wait",
"position": [
1104,
336
],
"webhookId": "9ddc5ae1-c2d9-4031-aa38-dafc7cdda091",
"parameters": {},
"typeVersion": 1.1
},
{
"id": "f0e1c571-d615-4942-a9cc-2529aa401cef",
"name": "添加上下文",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
576,
336
],
"parameters": {
"text": "=<document> \n{{ $('Metadata').item.json.content}}\n</document> \n\nHere is the chunk we want to situate within the overall document:\n\n<chunk> \n{{ $('Loop Over Items2').item.json.chunks }}\n</chunk> \n\nPlease:\n- Provide a short and succinct **context** to situate this chunk within the document for improved search retrieval.\n- Return the **original chunk** exactly as provided unless a correction is necessary.\n- If the chunk contains an **incomplete number, percentage, or entity**, correct it using the full document.\n- If part of a **sentence is cut off**, reconstruct the missing words only if necessary for clarity.\n- If the chunk is part of a table, include the complete table entry to maintain data integrity\n- Do not add any additional explanations or formatting beyond the required output.\n\nFill in the following format:\n[succinct context] : [original chunk or corrected version if necessary]\n\nYour response should contain only the text that replaces these placeholders, without including the placeholder labels themselves.",
"promptType": "define"
},
"typeVersion": 1.5
},
{
"id": "9153a959-d4a9-4392-a072-8db62ecd4008",
"name": "OpenAI 聊天模型2",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
576,
544
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-nano",
"cachedResultName": "gpt-4.1-nano"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "QsPyEUltWeliSiFb",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "25cb00db-559f-4eb0-baf6-3118fc6c6bf0",
"name": "循环处理项目2",
"type": "n8n-nodes-base.splitInBatches",
"position": [
352,
336
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "756c06ae-1b66-44a0-b4a6-076856cf01b5",
"name": "聚合2",
"type": "n8n-nodes-base.aggregate",
"position": [
544,
80
],
"parameters": {
"options": {},
"fieldsToAggregate": {
"fieldToAggregate": [
{}
]
}
},
"typeVersion": 1
},
{
"id": "1b2f5f20-f2f3-49c4-900a-d63d297b3fc2",
"name": "便签说明5",
"type": "n8n-nodes-base.stickyNote",
"position": [
-320,
224
],
"parameters": {
"width": 176,
"height": 280,
"content": "### 设置数据"
},
"typeVersion": 1
},
{
"id": "a321d862-fcb5-4895-bb44-2f1d038c4614",
"name": "便签13",
"type": "n8n-nodes-base.stickyNote",
"position": [
-112,
224
],
"parameters": {
"width": 356,
"height": 280,
"content": "### 根据块大小将文档分块成多个块"
},
"typeVersion": 1
},
{
"id": "dfb50197-9be2-4189-ab3c-0f11de6b62c1",
"name": "便签21",
"type": "n8n-nodes-base.stickyNote",
"position": [
544,
224
],
"parameters": {
"width": 264,
"height": 280,
"content": "### 为每个块添加上下文"
},
"typeVersion": 1
},
{
"id": "48bbb8a8-56de-4e68-acf2-beb25a583145",
"name": "便签22",
"type": "n8n-nodes-base.stickyNote",
"position": [
832,
224
],
"parameters": {
"width": 420,
"height": 284,
"content": "### 设置文本块并添加计时器，以免达到创建限制"
},
"typeVersion": 1
},
{
"id": "044811b8-f03e-4954-a6b0-1522030aa109",
"name": "便签23",
"type": "n8n-nodes-base.stickyNote",
"position": [
1344,
224
],
"parameters": {
"width": 472,
"height": 576,
"content": "### 更新插入到向量数据库中。"
},
"typeVersion": 1
},
{
"id": "57986be6-d5b8-47d8-8e14-f9be28282e59",
"name": "便签24",
"type": "n8n-nodes-base.stickyNote",
"position": [
-352,
64
],
"parameters": {
"color": 3,
"width": 2192,
"height": 752,
"content": "# 这是调用我的子工作流"
},
"typeVersion": 1
},
{
"id": "f28c07f0-e1d7-482f-bacc-bd2bc3ba011b",
"name": "便签说明4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-6000,
-784
],
"parameters": {
"width": 752,
"height": 752,
"content": "# 工作流摘要"
},
"typeVersion": 1
},
{
"id": "7c719413-7945-4e8e-9db2-02c6f3ee49c2",
"name": "便签26",
"type": "n8n-nodes-base.stickyNote",
"position": [
-3808,
144
],
"parameters": {
"width": 150,
"height": 304,
"content": "### Loop over each item, as more than 1 file can be placed in the Google Drive"
},
"typeVersion": 1
},
{
"id": "f5d30b0f-d7cc-4574-9939-9a53e7b02d12",
"name": "便签28",
"type": "n8n-nodes-base.stickyNote",
"position": [
-3568,
144
],
"parameters": {
"width": 160,
"height": 304,
"content": "### Download file"
},
"typeVersion": 1
},
{
"id": "f9c3a219-dbf0-470a-a54a-2c5775da45c4",
"name": "便签29",
"type": "n8n-nodes-base.stickyNote",
"position": [
-3376,
144
],
"parameters": {
"width": 160,
"height": 304,
"content": "### Extract text from pdf"
},
"typeVersion": 1
},
{
"id": "aced0ee1-a1d5-40fd-b866-c2640136802e",
"name": "便签30",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1840,
-96
],
"parameters": {
"width": 176,
"height": 304,
"content": "### Create new record in record manager since file is new and doesn't exist in database"
},
"typeVersion": 1
},
{
"id": "ae132431-fb89-45b5-9849-96812a46dcfd",
"name": "便签25",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2592,
-832
],
"parameters": {
"width": 336,
"height": 208,
"content": "## AI Agent to communicate with the database"
},
"typeVersion": 1
},
{
"id": "c8d17104-e110-453d-97ca-e8e79bf589c1",
"name": "Embedding",
"type": "n8n-nodes-base.httpRequest",
"position": [
-1792,
-544
],
"parameters": {
"url": "https://api.openai.com/v1/embeddings",
"method": "POST",
"options": {},
"sendBody": true,
"authentication": "genericCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "input",
"value": "={{ $json.query }}"
},
{
"name": "model",
"value": "text-embedding-3-small"
}
]
},
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "IZ2NWEGrJPwf73xf",
"name": "Openai"
}
},
"typeVersion": 4.2
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "60d22f47-01bc-4326-b282-0d742ef48480",
"connections": {
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}常见问题
如何使用这个工作流？
复制上方的 JSON 配置代码，在您的 n8n 实例中创建新工作流并选择「从 JSON 导入」，粘贴配置后根据需要修改凭证设置即可。
这个工作流适合什么场景？
高级 - AI RAG 检索增强, 多模态 AI
需要付费吗？
本工作流完全免费，您可以直接导入使用。但请注意，工作流中使用的第三方服务（如 OpenAI API）可能需要您自行付费。
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难度等级
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作者
Michael Taleb
@michaeltalebn8n developer helping businesses save time and scale by automating complex business processes with n8n and smart integrations.
外部链接
在 n8n.io 查看 →
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