我正在尝试阅读以下 JSON 结构。能够将数据提高到 1 级并正确查看其读数，但是当我深入了解其他部分时，它无法正确读取数据。以下是供您阅读的输入数据和我正在使用的代码和输出。请求您的帮助。
输入数据：
{“ProjectId”：“P.2000002”，“OperationId”：“O.2000002.01”，“ActivityId”：“A.2000002.01.01”，“描述”：“”，“Combos”：[{“ComboId”： “9146”，“需求”：{“DownHoleTools”：{“PrimaryTools”：[{“ToolCode”：“19139”，“ToolDescription”：“VSIT-C/D”，“IsEdoApplicable”：真，“来源”： “A”、“DemandDurationInfo”：{“StartDate”：“2019-09-09T17:42:10”、“EndDate”：“2019-09-19T23:00:00”}、“HashNumber”：1、“ClassificationName” “：“VSIT-C/D”、“ClassificationType”：0、“GroupInfo”：{“代码”：“1519”、“描述”：“VSIT”}、“CategoryInfo”：{“代码”：“1519”、“描述”：“VSIT”}，“评论”：“”，“IsDeleted”：false，“PartNumber”：“”，“描述”：“”，“CreatedDate”：“0001-01-01T00:00:00” , "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id":"1" }, { "ToolCode": "7030", "ToolDescription": "VSIB-P", "IsEdoApplicable": false, "Source": "A", "DemandDurationInfo": { "StartDate": "2019- 09-09T17:42:12”、“EndDate”：“2019-09-19T23:00:00”}、“HashNumber”：1、“ClassificationName”：“VSIB-P”、“ClassificationType”：0、“GroupInfo” “：{“代码”：“1519”，“描述”：“VSIT”}，“CategoryInfo”：{“代码”：“1519”，“描述”：“VSIT”}，“评论”：“”，“IsDeleted”：false，“PartNumber”：“”，“描述”：“”，“CreatedDate”：“0001-01-01T00:00:00 ", "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "1" }, { "ToolCode": "3707", “工具描述”：“HILT-TLD-H”，“IsEdoApplicable”：假，“来源”：“A”，“DemandDurationInfo”：{“StartDate”：“2020-02-12T15:18:32”，“EndDate”：“2020-02-13T15:18:32”}，“HashNumber”：1，“ClassificationName”：“HILT-TLD-H”， “ClassificationType”：0，“GroupInfo”：{“代码”：“842”，“描述”：“HILT”}，“CategoryInfo”：{“代码”：“842”，“描述”：“HILT”}， “评论”：“”，“IsDeleted”：false，“PartNumber”：“”，“描述”：“HILT-TLD-H”，“CreatedDate”：“0001-01-01T00:00:00”、“CreatedBy”：“”、“LastModifiedDate”：“0001-01-01T00:00:00”、“LastModifiedBy”：“”、“Id”：“1”}、 { "ToolCode": "3707", "ToolDescription": "HILT-TLD-H", "IsEdoApplicable": false, "Source": "A", "DemandDurationInfo": { "StartDate": "2020-02-12T15 :18:32", "EndDate": "2020-02-13T15:18:32" }, "HashNumber": 2, "ClassificationName": "HILT-TLD-H", "ClassificationType": 0, "GroupInfo": { "Code": "842", "Description": "HILT" }, "CategoryInfo": { "Code": "842", "Description": "HILT" }, "Comments": "", “IsDeleted”：false，“PartNumber”：“”，“描述”：“HILT-TLD-H”，“CreatedDate”：“0001-01-01T00:00:00”，“CreatedBy”：“”，“LastModifiedDate ": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "1" } ], "BackupTools": [{“代码”：“842”，“描述”：“HILT”}，“CategoryInfo”：{“代码”：“842”，“描述”：“HILT”}，“评论”：“”，“IsDeleted” ：假，“PartNumber”：“”，“描述”：“HILT-TLD-H”，“CreatedDate”：“0001-01-01T00:00:00”，“CreatedBy”：“”，“LastModifiedDate”：“ 0001-01-01T00:00:00”、“LastModifiedBy”：“”、“Id”：“1”}]、“BackupTools”：[{“代码”：“842”，“描述”：“HILT”}，“CategoryInfo”：{“代码”：“842”，“描述”：“HILT”}，“评论”：“”，“IsDeleted” ：假，“PartNumber”：“”，“描述”：“HILT-TLD-H”，“CreatedDate”：“0001-01-01T00:00:00”，“CreatedBy”：“”，“LastModifiedDate”：“ 0001-01-01T00:00:00”、“LastModifiedBy”：“”、“Id”：“1”}]、“BackupTools”：[代码”：“842”，“描述”：“HILT”}，“CategoryInfo”：{“代码”：“842”，“描述”：“HILT”}，“评论”：“”，“IsDeleted”：false , "PartNumber": "", "Description": "HILT-TLD-H", "CreatedDate": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001- 01-01T00:00:00”，“LastModifiedBy”：“”，“Id”：“1”}]，“BackupTools”：[代码”：“842”，“描述”：“HILT”}，“CategoryInfo”：{“代码”：“842”，“描述”：“HILT”}，“评论”：“”，“IsDeleted”：false , "PartNumber": "", "Description": "HILT-TLD-H", "CreatedDate": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001- 01-01T00:00:00”，“LastModifiedBy”：“”，“Id”：“1”}]，“BackupTools”：[描述”：“HILT”}，“CategoryInfo”：{“代码”：“842”，“描述”：“HILT”}，“评论”：“”，“IsDeleted”：false，“PartNumber”：“”， “描述”：“HILT-TLD-H”、“CreatedDate”：“0001-01-01T00:00:00”、“CreatedBy”：“”、“LastModifiedDate”：“0001-01-01T00:00:00” ，“LastModifiedBy”：“”，“Id”：“1”}]，“BackupTools”：[描述”：“HILT”}，“CategoryInfo”：{“代码”：“842”，“描述”：“HILT”}，“评论”：“”，“IsDeleted”：false，“PartNumber”：“”， “描述”：“HILT-TLD-H”、“CreatedDate”：“0001-01-01T00:00:00”、“CreatedBy”：“”、“LastModifiedDate”：“0001-01-01T00:00:00” ，“LastModifiedBy”：“”，“Id”：“1”}]，“BackupTools”：[代码”：“842”，“描述”：“HILT”}，“评论”：“”，“IsDeleted”：false，“PartNumber”：“”，“描述”：“HILT-TLD-H”，“CreatedDate ": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "1 " } ], "备份工具": [代码”：“842”，“描述”：“HILT”}，“评论”：“”，“IsDeleted”：false，“PartNumber”：“”，“描述”：“HILT-TLD-H”，“CreatedDate ": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "1 " } ], "备份工具": [PartNumber”：“”，“Description”：“HILT-TLD-H”，“CreatedDate”：“0001-01-01T00:00:00”，“CreatedBy”：“”，“LastModifiedDate”：“0001-01- 01T00:00:00”、“LastModifiedBy”：“”、“Id”：“1”}]、“BackupTools”：[PartNumber”：“”，“Description”：“HILT-TLD-H”，“CreatedDate”：“0001-01-01T00:00:00”，“CreatedBy”：“”，“LastModifiedDate”：“0001-01- 01T00:00:00”、“LastModifiedBy”：“”、“Id”：“1”}]、“BackupTools”：[备份工具”：[备份工具”：[
] }, "SurfaceTools": { "PrimaryTools": [ { "ToolCode": "19153", "ToolDescription": "MDT_Surface Eqpt", "IsEdoApplicable": false, "Source": "A", "DemandDurationInfo": { "StartDate": "2020-02-12T15:18:32", "EndDate": "2020-02-13T15:18:32" }, "HashNumber": 1, "ClassificationName": "MDT_Surface Eqpt", "ClassificationType": 1, "GroupInfo": { "Code": "965", "Description": "MDT Accessories" }, "CategoryInfo": { "Code": "965", "Description": "MDT Accessories" }, "Comments": "", "IsDeleted": false, "PartNumber": "", "Description": "MDT_Surface Eqpt", "CreatedDate": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "1" }, { "ToolCode": "19153", "ToolDescription": "MDT_Surface Eqpt", "IsEdoApplicable": false, "Source": "A", "DemandDurationInfo": { "StartDate": "2020-02-12T15:18:32", "EndDate": "2020-02-13T15:18:32" }, "HashNumber": 2, "ClassificationName": "MDT_Surface Eqpt", "ClassificationType": 1, "GroupInfo": { "Code": "965", "Description": "MDT Accessories" }, "CategoryInfo": { "Code": "965", "Description": "MDT Accessories" }, "Comments": "", "IsDeleted": false, "PartNumber": "", "Description": "MDT_Surface Eqpt", "CreatedDate": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "1" } ], "BackupTools": [ ] }, "Techniques": { "PrimaryTools": [ ], "BackupTools": [ ] }, "Services": [ ], "Tools": "" }, "ComboType": 2, "HashCode": "", "SequenceNumber": "", "ConveyanceInfo": "", "CreatedDate": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "98e9418f-e50a-417b-affb-5fc4c1f71f39"}，{“ComboId”：“5970”，“需求”：{“DownHoleTools”：{“PrimaryTools”：[
], "BackupTools": [ ] }, "SurfaceTools": { "PrimaryTools": [ ], "BackupTools": [ ] }, "Techniques": { "PrimaryTools": [ ], "BackupTools": [ ] }, "Services": [ ], "Tools": "" }, "ComboType": 1, "HashCode": "", "SequenceNumber": "", "ConveyanceInfo": "", "CreatedDate": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "944cf025-2a8c-4372-9f87-6c80c844ac68"}，{“ComboId”：“5971”，“需求”：{“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": "0a9338b2-aa95-4d5a-8e57-1305e78fec0c"}，{“ComboId”：“26793”，“需求”：{“DownHoleTools”：{“PrimaryTools”：[
], "BackupTools": [ ] }, "SurfaceTools": { "PrimaryTools": [ ], "BackupTools": [ ] }, "Techniques": { "PrimaryTools": [ ], "BackupTools": [ ] }, "Services": [ { "Code": "GIWS", "Name": "Grease Injection WHE Service", "Description": "", "GroupInfos": "", "ClassificationType": 4, "LegacySystemMapping": [ { "LegacyId": "EE61B186-CE57-46A8-B280-FE913CC8FF33", "LegacySystemMappedProperty": "Grease Injection WHE Service", "LegacySystemName": "ODM" }, { "LegacyId": "2e4b1aea-3d91-43b6-9c32-a165a546ed39", "LegacySystemMappedProperty": "Grease Injection WHE Service", "LegacySystemName": "OSCompliance" } ], "Source": "A", "Comments": "", "Id": "9c405cc1-5231-4baf-864f-7974bb4fbe07" }, { "Code": "SCNNGWS", "Name": "Slick Cable Non-Grease Injection WHE Service", "Description": "", "GroupInfos": "", "ClassificationType": 4, "LegacySystemMapping": [ { "LegacyId": "7B41D3DD-A6A7-47AF-81CD-5D8C248183B5", "LegacySystemMappedProperty": "Slick Cable Non-Grease Injection WHE Service", "LegacySystemName": "ODM" }, { "LegacyId": "399e61ed-353a-404f-aad3-1e84c46cb273", "LegacySystemMappedProperty": "Slick Cable Non-Grease Injection WHE Service", "LegacySystemName": "OSCompliance" } ], "Source": "A", "Comments": "", "Id": "0a4848d3-7d93-4721-a556-2ecf1b0a7f43" }, { "Code": "TPWS", "Name": "Third Party WHE Service", "Description": "", "GroupInfos": "", "ClassificationType": 4, "LegacySystemMapping": [ { "LegacyId": "CAF5754A-3F90-40C6-82AC-0A4F484A4E74", "LegacySystemMappedProperty": "Third Party WHE Service", "LegacySystemName": "ODM" }, { "LegacyId": "50ff1668-0b3b-489c-a7ad-794e327028e5", "LegacySystemMappedProperty": "Third Party WHE Service", "LegacySystemName": "OSCompliance" } ], "Source": "A", "Comments": "", "Id": "ee923f9e-210f-4c36-8fc4-f1e9521d0cbe" }, { "Code": "WLPPS", "Name": "Wireline Low Pressure Packoff Service", "Description": "", "GroupInfos": "", "ClassificationType": 4, "LegacySystemMapping": [ { "LegacyId": "CB79CDE1-2271-418D-9E67-D4B07E94AC61", "LegacySystemMappedProperty": "Wireline Low Pressure Packoff Service", "LegacySystemName": "ODM" }, { "LegacyId": "514650dd-5b71-4889-b991-0d77dd355666", "LegacySystemMappedProperty": "Wireline Low Pressure Packoff Service", "LegacySystemName": "OSCompliance" } ], "Source": "A", "Comments": "", "Id": "2216c1c0-41ba-40aa-90c2-1096e8191d2c" } ], "Tools": "" }, "ComboType": 2, "HashCode": "", "SequenceNumber": "", "ConveyanceInfo": "", "CreatedDate": "0001-01-01T00:00:00", "CreatedBy": "", "LastModifiedDate": "0001-01-01T00:00:00", "LastModifiedBy": "", "Id": "446d43e1-6476-4408-b850-e5f233933ba9"} ]，“CreatedDate”：“2019-09-09T13:12:14.94”，“CreatedBy”：“VHiremath”，“LastModifiedDate”：“2020-02-27T07:40:08.071”，“LastModifiedBy”：“VPanath” ，“ID”：“5d764fae3d6a351088a1c9d3”}
代码：
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://temp-dev-workspace/json_temp/jsonpath-0.8.0.js"
);
SELECT job_id,
combo_id,
tool_code
from temp.dbm_eqp_data,
UNNEST(CUSTOM_JSON_EXTRACT(conv_column, '$.Combos[*].ComboId')) combo_id,
UNNEST(CUSTOM_JSON_EXTRACT(conv_column, '$.Combos[*].Demands.DownHoleTools.PrimaryTools[*].ToolCode')) tool_code
;
预期输出：
