{"database": "eudr", "table": "sensor_readings", "rows": [["r-0092-1", "AGR-CO-0092", "2026-04-01T06:00:00", -1.8, 61.2, 28.4, 6.3, null, "CC-BY-SA-4.0", "Agrometer IoT Network"]], "columns": ["reading_id", "sensor_id", "timestamp", "water_table_m", "soil_moisture_pct", "temp_celsius", "soil_ph", "conductivity_ds_m", "license", "source"], "primary_keys": ["reading_id"], "primary_key_values": ["r-0092-1"], "units": {}, "query_ms": 1.0326619958505034, "source": "CleantechHUB", "source_url": "https://cleantechhub.net", "license": "CC-BY-SA-4.0", "license_url": "https://creativecommons.org/licenses/by-sa/4.0/"}