{"name": "Data Sync", "nodes": [{"id": "source-db", "name": "Source Database", "type": "n8n-nodes-base.postgres", "position": [200, 300], "parameters": {"limit": 100, "table": "[[source_table]]", "operation": "select"}}, {"id": "target-db", "name": "Target Database", "type": "n8n-nodes-base.postgres", "position": [400, 300], "parameters": {"table": "[[target_table]]", "operation": "insert"}}], "connections": {"Source Database": {"main": [[{"node": "Target Database", "type": "main", "index": 0}]]}}}