Thespica commented on issue #2749:
URL:
https://github.com/apache/incubator-hugegraph/issues/2749#issuecomment-2777873907
`struct.jso`n 中 `edges` 的映射有点问题，需要把表中的`jykh`和`dskh`映射到`cardNumber`，因此
1. 前两个字段需要select上（或者干脆不填select，但不能忽略了）；
2. 再添加两个映射。
下面的`struct.json`供参考 : )
```json
{
"version": "2.0",
"structs": [
{
"id": "1",
"skip": false,
"input": {
"type": "FILE",
"path": "/loader/dataset/transaction_data.csv",
"format": "CSV",
"delimiter": ",",
"date_format": "yyyy-MM-dd HH:mm:ss",
"time_zone": "GMT+8",
"skipped_line": {
"regex": "(^#|^//).*|"
},
"compression": "NONE",
"header": [
"jykh",
"jyhm",
"jyje",
"jysj",
"dskh",
"dshm",
"ukey"
],
"charset": "UTF-8"
},
"vertices": [
{
"label": "card",
"skip": false,
"field_mapping": {
"jykh": "cardNumber",
"jyhm": "holderName"
},
"selected": [
"jykh",
"jyhm"
],
"null_values": [
"NULL",
"null",
""
]
},
{
"label": "card",
"skip": false,
"field_mapping": {
"dskh": "cardNumber",
"dshm": "holderName"
},
"selected": [
"dskh",
"dshm"
],
"null_values": [
"NULL",
"null",
""
]
}
],
"edges": [
{
"label": "transaction",
"skip": false,
"source": [
"jykh"
],
"target": [
"dskh"
],
"field_mapping": {
"jykh": "cardNumber",
"dskh": "cardNumber",
"jyje": "amount",
"jysj": "transTime",
"ukey": "ukey"
},
"selected": [
"jykh",
"dskh",
"jyje",
"jysj",
"ukey"
],
"null_values": [
"NULL",
"null",
""
]
}
]
}
]
}
```
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