код возвращает ошибку при чтении JSON, а указанный раздел отсутствует в JSON Структура в BigQuery SQL

Question

У меня есть код, который отлично читается, когда упомянутые разделы присутствуют в JSON, и выдает ошибку, когда упомянутый раздел отсутствует. Попытка обойти эту проблему для чтения этого раздела и возврата значений NULL, если они не найдены.

Входные данные: {"ProjectId": "P.2001850", "OperationId": "O.2001850.01 "," ActivityId ":" A.2001850.01.04 "," Description ":" "," Combos ": [{" ComboId ":" 28632 "," Demands ": {" DownHoleTools ": {" PrimaryTools ": [

      ],
      "BackupTools": [

      ]
    },
    "SurfaceTools": {
      "PrimaryTools": [

      ],
      "BackupTools": [

      ]
    },
    "Techniques": {
      "PrimaryTools": [

      ],
      "BackupTools": [

      ]
    },
    "Services": [

    ],
    "Tools": ""
  },
  "ComboType": 0,
  "HashCode": "",
  "SequenceNumber": "",
  "ConveyanceInfo": "",
  "CreatedDate": "0001-01-01T00:00:00",
  "CreatedBy": "",
  "LastModifiedDate": "0001-01-01T00:00:00",
  "LastModifiedBy": "",
  "Id": "0f987389-f724-4954-94fb-fd9b8f981951"
},
{
  "ComboId": "28631",
  "Demands": {
    "DownHoleTools": "",
    "SurfaceTools": "",
    "Techniques": {
      "PrimaryTools": [

      ],
      "BackupTools": [

      ]
    },
    "Services": [

    ],
    "Tools": {
      "PrimaryTools": [
        {
          "ToolCode": "ToolName",
          "ToolDescription": "WDIS9",
          "ToolSize": "900",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-04-02T05:00:00",
            "EndDate": "2020-04-05T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "WDP"
          },
          "BrandInfo": {
            "Code": "DM-WDP",
            "Description": "WDP",
            "WkId": "6:DM-WDP"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "d5c2d518-e6b0-4b1f-b490-5d22f14efd9e"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "TeleScope 825",
          "ToolSize": "825",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-25T05:00:00",
            "EndDate": "2020-03-31T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Mud Pulse"
          },
          "BrandInfo": {
            "Code": "DM-TEL",
            "Description": "[DM-TEL] TELESCOPE",
            "WkId": "6:DM-TEL"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "b6fd7582-6850-4ea4-a1ab-2caa69a956c2"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "SDNSC 475 - TOOL ASSY",
          "ToolSize": "475",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-25T05:00:00",
            "EndDate": "2020-03-31T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Logging While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Nuclear"
          },
          "BrandInfo": {
            "Code": "DM-IDNSC",
            "Description": "[DM-IDNSC] IDNSC",
            "WkId": "6:DM-IDNSC"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "4aeb2a19-6dfd-43ab-8dbb-ee79f607d326"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "IDNSC 675 - TOOL ASSY",
          "ToolSize": "675",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-25T05:00:00",
            "EndDate": "2020-03-31T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Logging While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Nuclear"
          },
          "BrandInfo": {
            "Code": "DM-IDNSC",
            "Description": "[DM-IDNSC] IDNSC",
            "WkId": "6:DM-IDNSC"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "1ab693cd-61ff-490b-9dff-6b8a77a8727c"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "CTD-MWD",
          "ToolSize": "",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-18T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Directional Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Coil Tubing Drilling"
          },
          "BrandInfo": {
            "Code": "DM-FD",
            "Description": "COIL TUBING DRILLING",
            "WkId": "6:DM-FD"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "c06a357b-6c8c-44e3-83cf-8c4d40cad1e4"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "FUSION Cycle Disconnect",
          "ToolSize": "",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-18T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Directional Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Coil Tubing Drilling"
          },
          "BrandInfo": {
            "Code": "DM-FD",
            "Description": "COIL TUBING DRILLING",
            "WkId": "6:DM-FD"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "7c434710-63c4-4a84-8221-63a53682019f"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "DMM675",
          "ToolSize": "675",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-18T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Drilling Mechanics"
          },
          "BrandInfo": {
            "Code": "DM-DMM",
            "Description": "OPTIDRILL",
            "WkId": "6:DM-DMM"
          },
          "Comments": "test",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "2045d05f-ac3c-40a5-aca4-714da606f844"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "DMM900",
          "ToolSize": "900",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-18T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Drilling Mechanics"
          },
          "BrandInfo": {
            "Code": "DM-DMM",
            "Description": "OPTIDRILL",
            "WkId": "6:DM-DMM"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "890dae1e-8204-47d7-9335-9fb5604e7ca3"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "FUSION Orienting Tool",
          "ToolSize": "",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-18T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Directional Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Coil Tubing Drilling"
          },
          "BrandInfo": {
            "Code": "DM-FD",
            "Description": "[DM-FD] COIL TUBING DRILLING",
            "WkId": "6:DM-FD"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "b89c973a-d9fc-4241-8e77-f1651b80a4e4"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "GRPI8",
          "ToolSize": "825",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-19T05:00:00",
            "EndDate": "2020-03-28T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "WDP"
          },
          "BrandInfo": {
            "Code": "DM-WDP",
            "Description": "[DM-WDP] WDP",
            "WkId": "6:DM-WDP"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "881abae1-3e3c-4df7-9663-afeff5b5eb11"
        }
      ],
      "BackupTools": [
        {
          "ToolCode": "ToolName",
          "ToolDescription": "ShortPulse 475",
          "ToolSize": "475",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-04-01T05:00:00",
            "EndDate": "2020-04-05T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Mud Pulse"
          },
          "BrandInfo": {
            "Code": "DM-BMP",
            "Description": "SHORTPULSE",
            "WkId": "6:DM-BMP"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "637a4465-0045-49f5-963d-ee65b93478b1"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "TeleScope 900",
          "ToolSize": "900",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-16T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Mud Pulse"
          },
          "BrandInfo": {
            "Code": "DM-TEL",
            "Description": "[DM-TEL] TELESCOPE",
            "WkId": "6:DM-TEL"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "dcf0fbef-05af-44af-bde1-2acdd09d2b85"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "IDNSC 675 - TOOL ASSY",
          "ToolSize": "675",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-16T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Logging While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Nuclear"
          },
          "BrandInfo": {
            "Code": "DM-IDNSC",
            "Description": "[DM-IDNSC] IDNSC",
            "WkId": "6:DM-IDNSC"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "401f8e09-6591-4f6b-92ca-e207b1679eed"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "SONICPACER 675 - TOOL ASSY",
          "ToolSize": "675",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-16T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Logging While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Sonic"
          },
          "BrandInfo": {
            "Code": "DM-SONP",
            "Description": "SONICPACER",
            "WkId": "6:DM-SONP"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "91feada7-807e-46dd-9fe8-17e255dbf87f"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "GDIS 900",
          "ToolSize": "900",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-16T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Gyro"
          },
          "BrandInfo": {
            "Code": "DM-GDIS",
            "Description": "GDIS",
            "WkId": "6:DM-GDIS"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "446a1535-848d-49f6-a6a3-53c2102aee46"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "WDIS9",
          "ToolSize": "900",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-04-01T05:00:00",
            "EndDate": "2020-04-05T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "WDP"
          },
          "BrandInfo": {
            "Code": "DM-WDP",
            "Description": "WDP",
            "WkId": "6:DM-WDP"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "70b21610-ff2f-4c87-9132-1b2d6dd59fa0"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "DMM675",
          "ToolSize": "675",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-04-01T05:00:00",
            "EndDate": "2020-04-05T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Drilling Mechanics"
          },
          "BrandInfo": {
            "Code": "DM-DMM",
            "Description": "OPTIDRILL",
            "WkId": "6:DM-DMM"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "aa0aa23c-d3f6-4920-897d-ecd3a10cde59"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "DMM900",
          "ToolSize": "900",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-12T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Drilling Mechanics"
          },
          "BrandInfo": {
            "Code": "DM-DMM",
            "Description": "OPTIDRILL",
            "WkId": "6:DM-DMM"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "f9f5fb49-7ec5-40fe-a737-9b145ae800a6"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "DMM675",
          "ToolSize": "675",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-12T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Drilling Mechanics"
          },
          "BrandInfo": {
            "Code": "DM-DMM",
            "Description": "OPTIDRILL",
            "WkId": "6:DM-DMM"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "b68c5c40-8cca-4ed0-a82c-a11a04a216a3"
        },
        {
          "ToolCode": "ToolName",
          "ToolDescription": "DMM900",
          "ToolSize": "900",
          "Source": "A",
          "DemandDurationInfo": {
            "StartDate": "2020-03-12T05:00:00",
            "EndDate": "2020-03-20T05:00:00"
          },
          "ToolGroupInfo": {
            "Code": "ToolGroup",
            "Description": "Measurements While Drilling"
          },
          "ToolTypeInfo": {
            "Code": "ToolType",
            "Description": "Drilling Mechanics"
          },
          "BrandInfo": {
            "Code": "DM-DMM",
            "Description": "OPTIDRILL",
            "WkId": "6:DM-DMM"
          },
          "Comments": "",
          "CreatedDate": "0001-01-01T00:00:00",
          "CreatedBy": "",
          "LastModifiedDate": "0001-01-01T00:00:00",
          "LastModifiedBy": "",
          "Id": "41eb924d-fe79-4743-a981-b9af73e272cb"
        }
      ]
    }
  },
  "ComboType": 1,
  "HashCode": "",
  "SequenceNumber": "",
  "ConveyanceInfo": "",
  "CreatedDate": "0001-01-01T00:00:00",
  "CreatedBy": "",
  "LastModifiedDate": "0001-01-01T00:00:00",
  "LastModifiedBy": "",
  "Id": "20b7a14b-b038-40a0-9da3-d13708838332"
}

], "FmpEdpId": "5e7ae62757b51d0001cbf6b5", "CreatedDate": "2020-03-13T20: 28: 27.539", "CreatedBy": "FDPSystemUser", "LastModifiedDate": "2020- 03-26T11: 38: 28.621 "," LastModifiedBy ":" RNighot "," Id ":" 5e6beceb3d6a2f7154aaed9f "}

Код:

CREATE TEMPORARY FUNCTION CUSTOM_JSON_EXTRACT(json STRING, json_path STRING) 
RETURNS ARRAY<STRING> LANGUAGE js AS '''
  var result = jsonPath(JSON.parse(json), json_path);
  if(result){return result;} 
  else {return [];}
'''
OPTIONS (library='gs://slb-it-op-dev-temp-dev-workspace/json_temp/jsonpath-0.8.0.js');

CREATE TEMP FUNCTION jsonparse(input STRING)
RETURNS ARRAY<STRING>
LANGUAGE js AS """
  var result= JSON.parse(input).map(x=>JSON.stringify(x));
   if(result){return result;} 
  else {return [];}
"""
OPTIONS (
    library="gs://slb-it-op-dev-temp-dev-workspace/json_temp/jsonpath-0.8.0.js"
);

SELECT 
  job_id,
  combo_id,
  JSON_EXTRACT_SCALAR(combo, '$.ComboType') Combo_Type,
  JSON_EXTRACT_SCALAR(combo, '$.HashCode') Combo_Hash_code,
  JSON_EXTRACT_SCALAR(combo, '$.Id') Combos_Id,
  JSON_EXTRACT_SCALAR(primary_tools, '$.ToolDescription') tool_name,
  JSON_EXTRACT_SCALAR(primary_tools, '$.ToolSize') tool_size,
   JSON_EXTRACT_SCALAR(primary_tools, '$.Source') Source,
   JSON_EXTRACT_SCALAR(primary_tools, '$.BrandInfo.Code') Brand_Info_Code,
  JSON_EXTRACT_SCALAR(primary_tools, '$.BrandInfo.Description') Brand_Info_Description,
   JSON_EXTRACT_SCALAR(primary_tools, '$.BrandInfo.WkId') Brand_Info_WKID,
 FROM temp_db.eqp_temp,
UNNEST(jsonparse(JSON_EXTRACT(conv_column, '$.Combos'))) combo
LEFT JOIN UNNEST(CUSTOM_JSON_EXTRACT(combo, '$.ComboId')) combo_id
LEFT JOIN UNNEST(jsonparse(JSON_EXTRACT(combo, '$.Demands.Tools.PrimaryTools'))) primary_tools

Вывод:

нам нужно прочитать комбоид "28632" для '$ ​​.Demands.Tools. PrimaryTools ', поймать здесь " Инструменты " раздел не имеет раздела "PrimaryTools" для этой комбинации.

Answer 1

Единственное незначительное исправление потребовалось в функции JSONparse (ФУНКЦИЯ ТЕМПЕРАТУРЫ), как показано в коде ниже

#standardSQL
CREATE TEMPORARY FUNCTION CUSTOM_JSON_EXTRACT(json STRING, json_path STRING) 
RETURNS ARRAY<STRING> LANGUAGE js AS '''
  var result = jsonPath(JSON.parse(json), json_path);
  if(result){return result;} 
  else {return [];}
'''
OPTIONS (library='gs://slb-it-op-dev-temp-dev-workspace/json_temp/jsonpath-0.8.0.js');

CREATE TEMP FUNCTION jsonparse(input STRING)
RETURNS ARRAY<STRING>
LANGUAGE js AS '''
  if(input){return JSON.parse(input).map(x => JSON.stringify(x));} 
  else {return [];}
'''
OPTIONS (library='gs://slb-it-op-dev-temp-dev-workspace/json_temp/jsonpath-0.8.0.js');

SELECT 
  job_id,
  combo_id,
  JSON_EXTRACT_SCALAR(combo, '$.ComboType') Combo_Type,
  JSON_EXTRACT_SCALAR(combo, '$.HashCode') Combo_Hash_code,
  JSON_EXTRACT_SCALAR(combo, '$.Id') Combos_Id,
  JSON_EXTRACT_SCALAR(primary_tools, '$.ToolDescription') tool_name,
  JSON_EXTRACT_SCALAR(primary_tools, '$.ToolSize') tool_size,
  JSON_EXTRACT_SCALAR(primary_tools, '$.Source') Source,
  JSON_EXTRACT_SCALAR(primary_tools, '$.BrandInfo.Code') Brand_Info_Code,
  JSON_EXTRACT_SCALAR(primary_tools, '$.BrandInfo.Description') Brand_Info_Description,
  JSON_EXTRACT_SCALAR(primary_tools, '$.BrandInfo.WkId') Brand_Info_WKID,
FROM `temp_db.eqp_temp`,
UNNEST(jsonparse(JSON_EXTRACT(conv_column, '$.Combos'))) combo
LEFT JOIN UNNEST(CUSTOM_JSON_EXTRACT(combo, '$.ComboId')) combo_id
LEFT JOIN UNNEST(jsonparse(JSON_EXTRACT(combo, '$.Demands.Tools.PrimaryTools'))) primary_tools    

с выводом

Row job_id  combo_id    Combo_Type  Combo_Hash_code Combos_Id   tool_name   tool_size   Source  Brand_Info_Code Brand_Info_Description  Brand_Info_WKID  
1   1   28632   0       0f987389-f724-4954-94fb-fd9b8f981951    null    null    null    null    null    null     
2   1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    WDIS9   900 A   DM-WDP  WDP 6:DM-WDP     
3   1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    TeleScope 825   825 A   DM-TEL  [DM-TEL] TELESCOPE  6:DM-TEL     
4   1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    SDNSC 475 - TOOL ASSY   475 A   DM-IDNSC    [DM-IDNSC] IDNSC    6:DM-IDNSC   
5   1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    IDNSC 675 - TOOL ASSY   675 A   DM-IDNSC    [DM-IDNSC] IDNSC    6:DM-IDNSC   
6   1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    CTD-MWD     A   DM-FD   COIL TUBING DRILLING    6:DM-FD  
7   1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    FUSION Cycle Disconnect     A   DM-FD   COIL TUBING DRILLING    6:DM-FD  
8   1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    DMM675  675 A   DM-DMM  OPTIDRILL   6:DM-DMM     
9   1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    DMM900  900 A   DM-DMM  OPTIDRILL   6:DM-DMM     
10  1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    FUSION Orienting Tool       A   DM-FD   [DM-FD] COIL TUBING DRILLING    6:DM-FD  
11  1   28631   1       20b7a14b-b038-40a0-9da3-d13708838332    GRPI8   825 A   DM-WDP  [DM-WDP] WDP    6:DM-WDP