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n8n - 💡(How to fix) Fix Dataset too large for the SQL sandbox [item 0]

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Error Message

  • error: all
RAW_BUFFERClick to expand / collapse

Dear all , after update to current version I test the flows.

Input1 - 4collums ~31k rows Input2 - 6collums ~96k rows <img width="301" height="69" alt="Image" src="https://github.com/user-attachments/assets/48e26104-2e7e-4ca1-b9cb-22a0dcf5926b" />

Debug info

NodeOperationError: Dataset too large for the SQL sandbox at prepareError (~Merge/v3/actions/mode/combineBySql.ts:102:8) at ExecuteContext.execute (~Merge/v3/actions/mode/combineBySql.ts:245:3) at ExecuteContext.router (Merge/v3/actions/router.ts:16:9) at ExecuteContext.execute (Merge/v3/MergeV3.node.ts:27:10) at WorkflowExecute.executeNode (/execution-engine/workflow-execute.ts:1048:9) at WorkflowExecute.runNode (/execution-engine/workflow-execute.ts:1239:11) at ~/execution-engine/workflow-execute.ts:1687:27 at ~/execution-engine/workflow-execute.ts:2339:11

core

  • n8nVersion: 2.20.6
  • platform: docker (self-hosted)
  • nodeJsVersion: 24.14.1
  • nodeEnv: production
  • database: postgres
  • executionMode: scaling (single-main)
  • concurrency: -1
  • license: enterprise (production)

storage

  • success: none
  • error: all
  • progress: false
  • manual: true
  • binaryMode: database

pruning

  • enabled: true
  • maxAge: 168 hours
  • maxCount: 10000 executions

client

  • userAgent: mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/147.0.0.0 safari/537.36
  • isTouchDevice: false

Generated at: 2026-05-12T11:46:06.626Z

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#model compatibility#GPU setup#container setup#orchestration issue#cache issue

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