Postgres Scheduler

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "name": "scheduler",
  "nodes": [
    {
      "parameters": {
        "workflowId": {
          "__rl": true,
          "value": "Uxm-SlghMh4gTtgUcR252",
          "mode": "list",
          "cachedResultUrl": "/workflow/Uxm-SlghMh4gTtgUcR252",
          "cachedResultName": "ingestion"
        },
        "workflowInputs": {
          "mappingMode": "defineBelow",
          "value": {},
          "matchingColumns": [],
          "schema": [],
          "attemptToConvertTypes": false,
          "convertFieldsToString": true
        },
        "options": {}
      },
      "type": "n8n-nodes-base.executeWorkflow",
      "typeVersion": 1.3,
      "position": [
        208,
        0
      ],
      "id": "7fc8e7b2-8329-4757-8e51-fe1f6bfa1a0a",
      "name": "Call 'ingestion'"
    },
    {
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "minutes"
            }
          ]
        }
      },
      "type": "n8n-nodes-base.scheduleTrigger",
      "typeVersion": 1.3,
      "position": [
        -128,
        0
      ],
      "id": "86e2e077-8841-4482-a8bc-604605f732f8",
      "name": "Schedule Trigger"
    },
    {
      "parameters": {
        "workflowId": {
          "__rl": true,
          "value": "eXwD1aDrKD0qlWdWhfAVH",
          "mode": "list",
          "cachedResultUrl": "/workflow/eXwD1aDrKD0qlWdWhfAVH",
          "cachedResultName": "processing"
        },
        "workflowInputs": {
          "mappingMode": "defineBelow",
          "value": {},
          "matchingColumns": [],
          "schema": [],
          "attemptToConvertTypes": false,
          "convertFieldsToString": true
        },
        "options": {}
      },
      "type": "n8n-nodes-base.executeWorkflow",
      "typeVersion": 1.3,
      "position": [
        416,
        0
      ],
      "id": "cbe2ebb9-5674-4e36-b04c-3826afc2f4bd",
      "name": "Call 'processing'"
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "INSERT INTO control.dw_pipeline_state (\n  execution_id,\n  started_at,\n  status\n)\nVALUES (\n  {{ $execution.id }},\n  now(),\n  'RUNNING'\n);",
        "options": {}
      },
      "type": "n8n-nodes-base.postgres",
      "typeVersion": 2.6,
      "position": [
        32,
        0
      ],
      "id": "ad162147-cd51-471f-bf93-065caebe83eb",
      "name": "Execute a SQL query",
      "credentials": {
        "postgres": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "UPDATE control.api_ingestion_runs\nSET\n  finished_at = now(),\n  records_counter = (SELECT COUNT(*) FROM gold.enriquecimentos),\n  status = 'SUCCESS'\nWHERE execution_id = '{{ $execution.id}}';",
        "options": {}
      },
      "type": "n8n-nodes-base.postgres",
      "typeVersion": 2.6,
      "position": [
        592,
        0
      ],
      "id": "1d685017-d140-4094-a356-c48e11730ebc",
      "name": "Execute a SQL query1",
      "credentials": {
        "postgres": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "SELECT * FROM control.dw_pipeline_state",
        "options": {}
      },
      "type": "n8n-nodes-base.postgres",
      "typeVersion": 2.6,
      "position": [
        784,
        0
      ],
      "id": "8fe9dbce-5eaa-4d83-af3a-9f75f8de8e10",
      "name": "Execute a SQL query2",
      "credentials": {
        "postgres": {
          "name": "<your credential>"
        }
      }
    }
  ],
  "connections": {
    "Schedule Trigger": {
      "main": [
        [
          {
            "node": "Execute a SQL query",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Call 'ingestion'": {
      "main": [
        [
          {
            "node": "Call 'processing'",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Execute a SQL query": {
      "main": [
        [
          {
            "node": "Call 'ingestion'",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Call 'processing'": {
      "main": [
        [
          {
            "node": "Execute a SQL query1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Execute a SQL query1": {
      "main": [
        [
          {
            "node": "Execute a SQL query2",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Execute a SQL query2": {
      "main": [
        []
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "availableInMCP": false
  },
  "versionId": "fc969e0e-88f8-4df1-988b-1ce0714a97b2",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "id": "LZr4ay4Ilzg9ytoiGTjgP",
  "tags": []
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• postgres

About this workflow

scheduler. Uses postgres. Scheduled trigger; 6 nodes.

Source: https://github.com/kauangod/driva-technical-test/blob/49a7d374216e74cba1d66ee64a1ed2ee7c968076/workflows/scheduler.json — original creator credit. Request a take-down →

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