# 结构函数

本部分介绍以下结构函数：

| 函数 | 描述 |
| --- | --- |
| [FROM_KEY_VALUE](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/from_key_value.htm) | 将键值列表映射到包含每个键的字段的记录 |
| [GET_RANGE](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/get_range.htm) | 返回一个介于开始和结束（包括）之间的数字范围 |
| [JOIN_ALL_BY_KEY](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/join_all_by_key.htm) | 按键将多个键值数组合并为一个 |
| [JSON_PATH](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/json_path.htm) | 从 JSON 对象中提取数据 |
| [JSON_TO_RECORD](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/json_to_record.htm) | 从 JSON 对象中提取数据 |
| [MAP_WITH_INDEX](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/map_with_index.htm) | 输出索引和值字段。索引包含一个从零开始的索引，值包含输入字段中的值 |
| [QUERY_STRING_TO_RECORD](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/query_string_to_record.htm) | 从查询字符串中提取数据 |
| [RECORD_TO_JSON](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/record_to_json.htm) | 将包含该字段的记录转换为 JSON 字符串 |
| [SORT_BY](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/sort_by.htm) | 按 sortKeys 数组对 values 数组进行排序 |
| [TO_ARRAY](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/to_array.htm) | 将所有输入中的所有值作为数组输出 |
| [ZIP](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/zip.htm) | 按索引将多个数组合并为记录 |
| [ZIP_WITH_INDEX](https://help.qlik.com/zh-CN/cloud-services/Subsystems/Hub/Content/Sense_Hub/DataIntegration/Lakehouse/TransformationFunctions/structural/zip_with_index.htm) | 按索引将多个数组组合成记录 |