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{"code":"invalid_param","message":"Query cannot exceed 250 characters","status":400} #21060
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opened 2026-02-21 20:10:29 -05:00 by yindo
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feat/ce-telemetry-dev
gh-readonly-queue/main/pr-38920-7b188287daa401c036e7a9c44df8becf374a6237
gh-readonly-queue/main/pr-38752-f6db23444db6a4680745ae0c2726c0e634432665
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laipz8200/human-input-loop-iteration
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feat/support-milvus-2.4
feat/add-resource-from-tools
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Reference: langgenius/dify#21060
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Originally created by @KkHu-Kistch on GitHub (Dec 15, 2025).
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Dify version
1.11
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Steps to reproduce
please tell me why? why i cant exceed 250 characters? its not Reasonable
✔️ Expected Behavior
i can use > 250 characters to search
❌ Actual Behavior
i cant use > 250 characters to search
@KkHu-Kistch commented on GitHub (Dec 15, 2025):
import requests
import json
import re
================= 配置区域 =================
DIFY_API_KEY = "xxxxxxxxxxxxxxxxx" # 必须是【知识库】的 API Key
DIFY_BASE_URL = "https://api.dify.ai/v1" # 私有部署请换成你的域名
DATASET_ID = "xxxxxxxxxxxxxxxxxx" # 你的 Dify 数据集 ID
def retrieve_triton_code(query_text):
"""
核心召回函数:
输入 Torch 代码/描述 -> 返回对应的 Triton 代码
"""
url = f"{DIFY_BASE_URL}/datasets/{DATASET_ID}/retrieve"
headers = {
"Authorization": f"Bearer {DIFY_API_KEY}",
"Content-Type": "application/json"
}
================= 测试用例 =================
if name == "main":
its my python code,you can use this to reproduce it
@dosubot[bot] commented on GitHub (Dec 15, 2025):
The 250-character query limit is enforced by Dify's backend validation. Specifically, the API expects the
queryfield to be no longer than 250 characters, as defined in the Pydantic model for the retrieval payload (see code). The service logic also checks this and raises an error if the limit is exceeded (see code). This restriction is hardcoded and not configurable in the current version.If you need to submit longer queries, you could try splitting your input into smaller chunks or, if your use case allows, use the
attachment_idsfield to upload content and reference it in your query. There are currently no official workarounds or plans announced to increase this limit. The validation is intentional and covered by unit tests (see PR #28668).To reply, just mention @dosu.
How did I do? Good | Irrelevant | Incorrect | Verbose | Hallucination | Report 🐛 | Other
@crazywoola commented on GitHub (Dec 15, 2025):
This is only for bug report, if you would like to ask a question, please head to Discussions.
We can moderately relax some length restrictions, but no matter the length, there will always be people questioning why there are any limits at all.
Because this is not the search method we want; it is recall testing, not intended for retrieval.
@KkHu-Kistch commented on GitHub (Dec 15, 2025):
As a paid Team user, we chose Dify for its more powerful features. The 250-character API response limit is severely impacting the effectiveness of our RAG application. Could you please:
Provide paid expansion options?
Or at least allow Team users to customize this limit?
Regarding the statement "it is recall testing, not intended for retrieval," we are confused:
Unclear feature positioning: If this functionality is only for testing purposes, why isn't it clearly indicated in the documentation and feature descriptions?
Mismatch with paid features: As paying users, we need production-level retrieval functionality, not just testing tools.
Actual requirements: We need to achieve efficient retrieval in the RAG workflow, returning complete and useful context.
Please clarify:
Does this mean the current functionality is unsuitable for production environments?
If so, does Dify offer a formal production-grade retrieval solution?
How can we upgrade or switch to the proper retrieval functionality?
@KkHu-Kistch commented on GitHub (Dec 15, 2025):
Moreover, please explain: I noticed that this issue was mentioned in the discussion area, yet there was no response from your side, which is why I’m reaching out here on GitHub. https://github.com/langgenius/dify/discussions/21147
At the same time, I have also contacted customer support, but so far, no one has responded to me, even you guys label this question as invalid. Don’t you think it is actually your arrogance that is causing users frustration?
Do you even care whether it’s a case of users not using the feature correctly, or a failure in the functionality design?
@JohnJyong commented on GitHub (Dec 16, 2025):
Excessively long queries dilute semantic focus, causing embedding vectors to lose discriminative power, leading to unstable similarity rankings and decreased recall quality. In RAG systems, this must be addressed through query compression or splitting. @KkHu-Kistch