fix(region): support distinct sku by name

pkg/apis/compute/sku_const.go

@@ -83,6 +83,9 @@ type ServerSkuListInput struct {
 
 	// 预付费状态
 	PrepaidStatus string `json:"prepaid_status"`
+
+	// 按套餐名称去重
+	Distinct bool `json:"distinct"`
 }
 
 type ElasticcacheSkuListInput struct {

pkg/compute/models/skus.go

@@ -725,6 +725,10 @@ func (manager *SServerSkuManager) ListItemFilter(
 		}
 	}
 
+	if query.Distinct {
+		q = q.GroupBy(q.Field("name"))
+	}
+
 	brands := query.Brands
 	if len(brands) > 0 {
 		q = q.Filter(sqlchemy.In(q.Field("brand"), brands))

pkg/mcclient/options/serverskus.go

@@ -28,6 +28,7 @@ type ServerSkusListOptions struct {
 	PostpaidStatus string  `help:"Postpaid status" choices:"soldout|available"`
 	PrepaidStatus  string  `help:"Prepaid status" choices:"soldout|available"`
 	Enabled        *bool   `help:"Filter enabled skus"`
+	Distinct       bool    `help:"distinct sku by name"`
 }
 
 func (opts *ServerSkusListOptions) GetId() string {