Workflow: Cron Postgres Automation

{
    "id": "33",
    "name": "Postgres Data Ingestion",
    "nodes": [
        {
            "name": "Cron",
            "type": "n8n-nodes-base.cron",
            "position": [
                300,
                250
            ],
            "parameters": {
                "triggerTimes": {
                    "item": [
                        {
                            "mode": "everyMinute"
                        }
                    ]
                }
            },
            "typeVersion": 1
        },
        {
            "name": "Function",
            "type": "n8n-nodes-base.function",
            "position": [
                500,
                250
            ],
            "parameters": {
                "functionCode": "var today = new Date();\nvar date = today.getFullYear()+'-'+(today.getMonth()+1)+'-'+today.getDate();\nvar time = today.getHours() + \":\" + today.getMinutes() + \":\" + today.getSeconds();\nvar dateTime = date+' '+time;\n\nitems[0].json.sensor_id = 'humidity01';\nitems[0].json.value = Math.ceil(Math.random()*100);\nitems[0].json.time_stamp = dateTime;\nitems[0].json.notification = false;\n\nreturn items;"
            },
            "typeVersion": 1
        },
        {
            "name": "Postgres",
            "type": "n8n-nodes-base.postgres",
            "position": [
                680,
                250
            ],
            "parameters": {
                "table": "n8n",
                "columns": "sensor_id,value,time_stamp,notification"
            },
            "credentials": {
                "postgres": "Postgres"
            },
            "typeVersion": 1
        }
    ],
    "active": true,
    "settings": [],
    "connections": {
        "Cron": {
            "main": [
                [
                    {
                        "node": "Function",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Function": {
            "main": [
                [
                    {
                        "node": "Postgres",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}