lb4 discover model is correct,but when i use this model ,return data's type is error that not what I need this type

Nobody has claimed this yet.

### Describe the bug

`
@property({
type: 'number',
required: true,
scale: 0,
postgresql: {
columnName: 'node_parent',
dataType: 'bigint',
dataLength: null,
dataPrecision: null,
dataScale: 0,
nullable: 'NO',
},
})
nodeParent: number;`

**I use postgreSQL DB and use lb4 discover, correct to create the last one item,but when i use this model,it return data‘s is error ;I need return number,but it return string type ,for e.g.**

`PermissionMenu {
id: undefined,
nodeName: undefined,
nodeType: undefined,
nodeParent: '123123123',
parentNodes: undefined,
seq: undefined,
description: undefined,
cssExt: undefined
}`

### Logs

_No response_

### Additional information

_No response_

### Reproduction

Occasional problem

No source file, test, or reliable reproduction is provided. Start at the lb4 discover path for PostgreSQL bigint fields and reproduce the reported nodeParent value; done means the discovered model consistently returns the expected numeric type, with regression coverage if the relevant test area is found.

Written by the indexing model from the issue text.