{"columns":[{"name":"reading_ts","type":"timestamp[us, tz=UTC]"},{"name":"device_id","type":"string"},{"name":"site","type":"string"},{"name":"temperature_c","type":"double"},{"name":"humidity_pct","type":"double"},{"name":"battery_pct","type":"int64"},{"name":"status","type":"string"}],"n_rows":100,"rows_kept":100,"cut":false,"text_format":"parquet-jsonl-2026-10-02","bounds":{"document_bytes":16777216,"package_text_limit_bytes":33554432,"package_text_slack_bytes":1024,"rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096,"vector_min":64,"vector_head_fixed":16,"vector_head_variable":64,"kv_value_chars":1048576,"nesting_max":64,"binary_text":true},"cells_cut":0,"cells_bad_utf8":0,"cells_raw":0,"cells_binary":0,"cells_binary_text":0,"cells_vector":0,"n_row_groups":1,"reader":"pyarrow 23.0.1, python 3.13","created_by":"DuckDB version v1.4.3 (build d1dc88f950)","schema":{"fields":[{"name":"reading_ts","type":"timestamp[us, tz=UTC]","nullable":true,"metadata":null,"children":null},{"name":"device_id","type":"string","nullable":true,"metadata":null,"children":null},{"name":"site","type":"string","nullable":true,"metadata":null,"children":null},{"name":"temperature_c","type":"double","nullable":true,"metadata":null,"children":null},{"name":"humidity_pct","type":"double","nullable":true,"metadata":null,"children":null},{"name":"battery_pct","type":"int64","nullable":true,"metadata":null,"children":null},{"name":"status","type":"string","nullable":true,"metadata":null,"children":null}],"parquet":"required group field_id=-1 duckdb_schema {\n  optional int64 field_id=-1 reading_ts (Timestamp(isAdjustedToUTC=true, timeUnit=microseconds, is_from_converted_type=false, force_set_converted_type=false));\n  optional binary field_id=-1 device_id (String);\n  optional binary field_id=-1 site (String);\n  optional double field_id=-1 temperature_c;\n  optional double field_id=-1 humidity_pct;\n  optional int64 field_id=-1 battery_pct (Int(bitWidth=64, isSigned=true));\n  optional binary field_id=-1 status (String);\n}\n"},"kv_metadata":[]}
["2026-03-01T00:00:00.000000Z","DEV-001","Plant A",17.9,41.3,98,"ok"]
["2026-03-01T07:12:00.000000Z","DEV-002","Plant B",20.6,44.0,99,"ok"]
["2026-03-01T14:24:00.000000Z","DEV-003","Warehouse North",21.6,44.2,97,"ok"]
["2026-03-01T21:36:00.000000Z","DEV-004","Warehouse South",24.4,40.4,97,"ok"]
["2026-03-02T04:48:00.000000Z","DEV-005","Lab",24.2,42.0,95,"ok"]
["2026-03-02T12:00:00.000000Z","DEV-006","Plant A",19.1,39.0,94,"ok"]
["2026-03-02T19:12:00.000000Z","DEV-007","Plant B",18.7,43.4,94,"ok"]
["2026-03-03T02:24:00.000000Z","DEV-008","Warehouse North",20.2,41.0,94,"ok"]
["2026-03-03T09:36:00.000000Z","DEV-009","Warehouse South",24.6,40.6,94,"ok"]
["2026-03-03T16:48:00.000000Z","DEV-010","Lab",25.7,40.7,94,"ok"]
["2026-03-04T00:00:00.000000Z","DEV-011","Plant A",19.4,42.4,92,"ok"]
["2026-03-04T07:12:00.000000Z","DEV-012","Plant B",19.5,47.1,91,"ok"]
["2026-03-04T14:24:00.000000Z","DEV-013","Warehouse North",22.5,45.9,88,"ok"]
["2026-03-04T21:36:00.000000Z","DEV-014","Warehouse South",23.2,44.0,88,"ok"]
["2026-03-05T04:48:00.000000Z","DEV-015","Lab",26.4,41.6,91,"ok"]
["2026-03-05T12:00:00.000000Z","DEV-016","Plant A",19.0,44.8,90,"ok"]
["2026-03-05T19:12:00.000000Z","DEV-017","Plant B",21.4,44.9,88,"ok"]
["2026-03-06T02:24:00.000000Z","DEV-018","Warehouse North",21.2,41.8,86,"ok"]
["2026-03-06T09:36:00.000000Z","DEV-019","Warehouse South",24.0,46.8,85,"ok"]
["2026-03-06T16:48:00.000000Z","DEV-020","Lab",25.5,45.7,83,"ok"]
["2026-03-07T00:00:00.000000Z","DEV-021","Plant A",17.6,45.1,80,"ok"]
["2026-03-07T07:12:00.000000Z","DEV-022","Plant B",21.1,48.6,87,"ok"]
["2026-03-07T14:24:00.000000Z","DEV-023","Warehouse North",23.7,42.0,86,"ok"]
["2026-03-07T21:36:00.000000Z","DEV-024","Warehouse South",24.3,47.0,83,"ok"]
["2026-03-08T04:48:00.000000Z","DEV-025","Lab",27.0,43.7,82,"ok"]
["2026-03-08T12:00:00.000000Z","DEV-026","Plant A",20.3,46.5,80,"ok"]
["2026-03-08T19:12:00.000000Z","DEV-027","Plant B",19.5,45.9,77,"ok"]
["2026-03-09T02:24:00.000000Z","DEV-028","Warehouse North",21.4,49.7,74,"ok"]
["2026-03-09T09:36:00.000000Z","DEV-029","Warehouse South",24.6,45.4,84,"ok"]
["2026-03-09T16:48:00.000000Z","DEV-030","Lab",24.7,46.9,82,"ok"]
["2026-03-10T00:00:00.000000Z","DEV-031","Plant A",18.3,44.5,79,"ok"]
["2026-03-10T07:12:00.000000Z","DEV-032","Plant B",19.5,45.5,77,"ok"]
["2026-03-10T14:24:00.000000Z","DEV-033","Warehouse North",22.3,44.4,74,"ok"]
["2026-03-10T21:36:00.000000Z","DEV-034","Warehouse South",23.9,50.3,71,"ok"]
["2026-03-11T04:48:00.000000Z","DEV-035","Lab",24.8,48.8,68,"ok"]
["2026-03-11T12:00:00.000000Z","DEV-036","Plant A",20.5,45.5,80,"ok"]
["2026-03-11T19:12:00.000000Z","DEV-037","Plant B",21.9,43.9,77,"ok"]
["2026-03-12T02:24:00.000000Z","DEV-038","Warehouse North",21.5,49.2,74,"ok"]
["2026-03-12T09:36:00.000000Z","DEV-039","Warehouse South",25.6,50.0,71,"ok"]
["2026-03-12T16:48:00.000000Z","DEV-040","Lab",27.5,46.0,68,"ok"]
["2026-03-13T00:00:00.000000Z","DEV-001","Plant A",19.6,46.1,77,"ok"]
["2026-03-13T07:12:00.000000Z","DEV-002","Plant B",20.3,44.7,74,"ok"]
["2026-03-13T14:24:00.000000Z","DEV-003","Warehouse North",22.2,44.5,71,"ok"]
["2026-03-13T21:36:00.000000Z","DEV-004","Warehouse South",23.4,51.9,67,"ok"]
["2026-03-14T04:48:00.000000Z","DEV-005","Lab",27.5,52.4,64,"ok"]
["2026-03-14T12:00:00.000000Z","DEV-006","Plant A",18.5,46.8,61,"ok"]
["2026-03-14T19:12:00.000000Z","DEV-007","Plant B",20.5,51.6,57,"ok"]
["2026-03-15T02:24:00.000000Z","DEV-008","Warehouse North",23.2,50.8,73,"ok"]
["2026-03-15T09:36:00.000000Z","DEV-009","Warehouse South",24.3,48.0,70,"ok"]
["2026-03-15T16:48:00.000000Z","DEV-010","Lab",28.0,52.9,67,"warn"]
["2026-03-16T00:00:00.000000Z","DEV-011","Plant A",21.0,51.1,63,"ok"]
["2026-03-16T07:12:00.000000Z","DEV-012","Plant B",21.6,49.5,58,"ok"]
["2026-03-16T14:24:00.000000Z","DEV-013","Warehouse North",24.1,52.6,54,"ok"]
["2026-03-16T21:36:00.000000Z","DEV-014","Warehouse South",23.7,48.6,51,"ok"]
["2026-03-17T04:48:00.000000Z","DEV-015","Lab",27.4,49.1,69,"ok"]
["2026-03-17T12:00:00.000000Z","DEV-016","Plant A",21.0,45.8,66,"ok"]
["2026-03-17T19:12:00.000000Z","DEV-017","Plant B",22.7,47.5,62,"ok"]
["2026-03-18T02:24:00.000000Z","DEV-018","Warehouse North",22.6,53.7,57,"ok"]
["2026-03-18T09:36:00.000000Z","DEV-019","Warehouse South",24.1,47.9,54,"ok"]
["2026-03-18T16:48:00.000000Z","DEV-020","Lab",27.9,52.6,49,"warn"]
["2026-03-19T00:00:00.000000Z","DEV-021","Plant A",19.0,47.7,45,"ok"]
["2026-03-19T07:12:00.000000Z","DEV-022","Plant B",20.8,48.4,65,"ok"]
["2026-03-19T14:24:00.000000Z","DEV-023","Warehouse North",23.5,48.8,61,"ok"]
["2026-03-19T21:36:00.000000Z","DEV-024","Warehouse South",25.9,46.9,58,"ok"]
["2026-03-20T04:48:00.000000Z","DEV-025","Lab",28.6,49.1,53,"warn"]
["2026-03-20T12:00:00.000000Z","DEV-026","Plant A",21.9,51.8,47,"ok"]
["2026-03-20T19:12:00.000000Z","DEV-027","Plant B",21.4,49.3,43,"ok"]
["2026-03-21T02:24:00.000000Z","DEV-028","Warehouse North",24.1,46.9,39,"ok"]
["2026-03-21T09:36:00.000000Z","DEV-029","Warehouse South",25.5,47.4,62,"ok"]
["2026-03-21T16:48:00.000000Z","DEV-030","Lab",26.3,49.2,57,"ok"]
["2026-03-22T00:00:00.000000Z","DEV-031","Plant A",19.5,50.5,52,"ok"]
["2026-03-22T07:12:00.000000Z","DEV-032","Plant B",23.5,51.0,47,"ok"]
["2026-03-22T14:24:00.000000Z","DEV-033","Warehouse North",24.3,50.5,42,"ok"]
["2026-03-22T21:36:00.000000Z","DEV-034","Warehouse South",25.1,53.5,36,"ok"]
["2026-03-23T04:48:00.000000Z","DEV-035","Lab",26.9,47.1,32,"ok"]
["2026-03-23T12:00:00.000000Z","DEV-036","Plant A",20.5,52.6,58,"ok"]
["2026-03-23T19:12:00.000000Z","DEV-037","Plant B",22.4,48.8,53,"ok"]
["2026-03-24T02:24:00.000000Z","DEV-038","Warehouse North",24.9,48.7,48,"ok"]
["2026-03-24T09:36:00.000000Z","DEV-039","Warehouse South",26.9,47.1,42,"ok"]
["2026-03-24T16:48:00.000000Z","DEV-040","Lab",28.0,48.5,36,"warn"]
["2026-03-25T00:00:00.000000Z","DEV-001","Plant A",21.0,53.8,54,"ok"]
["2026-03-25T07:12:00.000000Z","DEV-002","Plant B",22.6,52.0,49,"ok"]
["2026-03-25T14:24:00.000000Z","DEV-003","Warehouse North",25.0,47.7,43,"ok"]
["2026-03-25T21:36:00.000000Z","DEV-004","Warehouse South",25.6,51.3,38,"ok"]
["2026-03-26T04:48:00.000000Z","DEV-005","Lab",28.6,50.8,33,"warn"]
["2026-03-26T12:00:00.000000Z","DEV-006","Plant A",21.2,49.4,26,"ok"]
["2026-03-26T19:12:00.000000Z","DEV-007","Plant B",22.3,50.1,20,"warn"]
["2026-03-27T02:24:00.000000Z","DEV-008","Warehouse North",23.5,49.2,52,"ok"]
["2026-03-27T09:36:00.000000Z","DEV-009","Warehouse South",25.0,52.7,45,"ok"]
["2026-03-27T16:48:00.000000Z","DEV-010","Lab",29.2,53.4,40,"warn"]
["2026-03-28T00:00:00.000000Z","DEV-011","Plant A",19.8,53.1,34,"ok"]
["2026-03-28T07:12:00.000000Z","DEV-012","Plant B",24.4,51.2,26,"ok"]
["2026-03-28T14:24:00.000000Z","DEV-013","Warehouse North",23.2,47.5,20,"warn"]
["2026-03-28T21:36:00.000000Z","DEV-014","Warehouse South",25.4,48.2,15,"warn"]
["2026-03-29T04:48:00.000000Z","DEV-015","Lab",28.4,48.2,47,"warn"]
["2026-03-29T12:00:00.000000Z","DEV-016","Plant A",22.3,54.6,42,"ok"]
["2026-03-29T19:12:00.000000Z","DEV-017","Plant B",23.8,51.3,35,"ok"]
["2026-03-30T02:24:00.000000Z","DEV-018","Warehouse North",25.7,52.1,29,"ok"]
["2026-03-30T09:36:00.000000Z","DEV-019","Warehouse South",25.4,48.4,22,"warn"]
["2026-03-30T16:48:00.000000Z","DEV-020","Lab",28.0,54.1,15,"warn"]