[Feature] 通过属性值(非主键属性)创建关系

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
java
Domain
data

Research direction

Start by tracing the loader path that reports the missing primary-key fields and review how headers and field_mapping are used for relationship creation. Done should mean relationships can be imported using non-primary-key property values, including the described MySQL association-table scenario, without the current parse error.

Written by the indexing model from the issue text.

Description

feature
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Feature Description (功能描述)

使用loader时，通过属性值(非主键属性)来创建关系会报

PARSE ERROR: Make sure the the primary key fields [id] are not empty, or check whether the headers or field_mapping are configured correctly

也就是说，loader必须使用主键关联来创建属性。所以希望添加标题的功能。
毕竟更多的场景，就是mysql中一张关联关系表，通过非主键id做的。这时候就无法快速导入

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Code of Conduct
Dominant language
Java
Stars
121
Forks
125
Avg merge
8d 14h
Merged PRs (30d)
2

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