{"columns":[{"name":"ID","type":"int64"},{"name":"SWVERSION","type":"string"},{"name":"VSP","type":"double"},{"name":"VSPMode","type":"dictionary<values=string, indices=int8, ordered=1>"},{"name":"CO_2","type":"double"},{"name":"CO","type":"double"},{"name":"NO_x","type":"double"},{"name":"HC","type":"double"}],"n_rows":1,"rows_kept":1,"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":"parquet-cpp-arrow version 12.0.0","schema":{"fields":[{"name":"ID","type":"int64","nullable":true,"metadata":null,"children":null},{"name":"SWVERSION","type":"string","nullable":true,"metadata":null,"children":null},{"name":"VSP","type":"double","nullable":true,"metadata":null,"children":null},{"name":"VSPMode","type":"dictionary<values=string, indices=int8, ordered=1>","nullable":true,"metadata":null,"children":null},{"name":"CO_2","type":"double","nullable":true,"metadata":null,"children":null},{"name":"CO","type":"double","nullable":true,"metadata":null,"children":null},{"name":"NO_x","type":"double","nullable":true,"metadata":null,"children":null},{"name":"HC","type":"double","nullable":true,"metadata":null,"children":null}],"parquet":"required group field_id=-1 schema {\n  optional int64 field_id=-1 ID;\n  optional binary field_id=-1 SWVERSION (String);\n  optional double field_id=-1 VSP;\n  optional binary field_id=-1 VSPMode (String);\n  optional double field_id=-1 CO_2;\n  optional double field_id=-1 CO;\n  optional double field_id=-1 NO_x;\n  optional double field_id=-1 HC;\n}\n"},"kv_metadata":[["ARROW:schema",{"$cut":{"chars":2400,"head":""}}],["pandas","{\"index_columns\": [{\"kind\": \"range\", \"name\": null, \"start\": 0, \"stop\": 1, \"step\": 1}], \"column_indexes\": [{\"name\": null, \"field_name\": null, \"pandas_type\": \"unicode\", \"numpy_type\": \"object\", \"metadata\": {\"encoding\": \"UTF-8\"}}], \"columns\": [{\"name\": \"ID\", \"field_name\": \"ID\", \"pandas_type\": \"int64\", \"numpy_type\": \"int64\", \"metadata\": null}, {\"name\": \"SWVERSION\", \"field_name\": \"SWVERSION\", \"pandas_type\": \"unicode\", \"numpy_type\": \"object\", \"metadata\": null}, {\"name\": \"VSP\", \"field_name\": \"VSP\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"VSPMode\", \"field_name\": \"VSPMode\", \"pandas_type\": \"categorical\", \"numpy_type\": \"int8\", \"metadata\": {\"num_categories\": 8, \"ordered\": true}}, {\"name\": \"CO_2\", \"field_name\": \"CO_2\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"CO\", \"field_name\": \"CO\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"NO_x\", \"field_name\": \"NO_x\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"HC\", \"field_name\": \"HC\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}], \"creator\": {\"library\": \"pyarrow\", \"version\": \"12.0.1\"}, \"pandas_version\": \"1.5.3\"}"]]}
[0,"2.0.14",null,null,null,null,null,null]