go使用map去重

mapData := make(map[string]*csEntity.SyncCodeScanRecordSdkDtl)
linq.From(sdkResult).ForEachT(func(sdk *csEntity.CodeScanRecordSDKDetailPo) {
        if len(sdk.SdkId) == 0 || len(sdk.SdkVersion) == 0 {
            log.ErrorContextf(ctx, "[syncSdkConfigLib]-sdkid[%d]或sdkversion[%d]不能为空",
                sdk.SdkId, sdk.SdkVersion)
            err = errors.New("[syncSdkConfigLib]-sdkid[%d]或sdkversion[%d]不能为空")
        }
        var leak []null.String
        var read []null.String
        if len(sdk.PrivacyLeakData.String) > 0 {
            leak = append(leak, sdk.PrivacyLeakData)
        }
        if len(sdk.PrivacyReadData.String) > 0 {
            read = append(read, sdk.PrivacyReadData)
        }
        if mapData[sdk.SdkId+"_"+sdk.SdkVersion] == nil {
            mapData[sdk.SdkId+"_"+sdk.SdkVersion] = &csEntity.SyncCodeScanRecordSdkDtl{
                Category:        sdk.Category,
                CorporateName:   sdk.CompanyName,
                Description:     sdk.Description,
                SdkId:           sdk.SdkId,
                SdkName:         sdk.ChineseName,
                Version:         sdk.SdkVersion,
                SdkFunction:     sdk.Capability,
                Website:         sdk.Website,
                PrivacyDataLeak: leak,
                PrivacyDataRead: read,
            }
        }
    })

for _, val := range mapData {
   codeScanSdkDtlList = append(codeScanSdkDtlList, val)
}