diff --git a/server/querier/service/errors.go b/server/querier/common/errors.go
similarity index 98%
rename from server/querier/service/errors.go
rename to server/querier/common/errors.go
index baab2c94205..362f3237362 100644
--- a/server/querier/service/errors.go
+++ b/server/querier/common/errors.go
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package service
+package common
 
 import (
 	"encoding/json"
diff --git a/server/querier/engine/clickhouse/filter.go b/server/querier/engine/clickhouse/filter.go
index 149cef8ada0..c66907720fc 100644
--- a/server/querier/engine/clickhouse/filter.go
+++ b/server/querier/engine/clickhouse/filter.go
@@ -807,7 +807,7 @@ func GetPrometheusFilter(promTag, table, op, value string) (string, error) {
 	labelNameID, ok := Prometheus.LabelNameToID[nameNoPreffix]
 	if !ok {
 		if value == "" {
-			filter = "1=1"
+			filter = fmt.Sprintf("1%s1", op)
 		} else {
 			filter = "1!=1"
 		}
@@ -822,7 +822,7 @@ func GetPrometheusFilter(promTag, table, op, value string) (string, error) {
 			if appLabel.AppLabelName == nameNoPreffix {
 				isAppLabel = true
 				if value == "" {
-					filter = fmt.Sprintf("app_label_value_id_%d = 0", appLabel.appLabelColumnIndex)
+					filter = fmt.Sprintf("app_label_value_id_%d %s 0", appLabel.appLabelColumnIndex, op)
 					return filter, nil
 				}
 				if strings.Contains(op, "match") {
@@ -852,12 +852,12 @@ func GetRemoteReadFilter(promTag, table, op, value, originFilter string, e *CHEn
 	metricID, ok := Prometheus.MetricNameToID[table]
 	if !ok {
 		errorMessage := fmt.Sprintf("%s not found", table)
-		return filter, errors.New(errorMessage)
+		return filter, common.NewError(common.RESOURCE_NOT_FOUND, errorMessage)
 	}
 	labelNameID, ok := Prometheus.LabelNameToID[nameNoPreffix]
 	if !ok {
 		if value == "" {
-			filter = "1=1"
+			filter = fmt.Sprintf("1%s1", op)
 		} else {
 			filter = "1!=1"
 		}
@@ -880,7 +880,7 @@ func GetRemoteReadFilter(promTag, table, op, value, originFilter string, e *CHEn
 					}
 				}
 				if value == "" {
-					filter = fmt.Sprintf("app_label_value_id_%d = 0", appLabel.appLabelColumnIndex)
+					filter = fmt.Sprintf("app_label_value_id_%d %s 0", appLabel.appLabelColumnIndex, op)
 					entryValue := common.EntryValue{Time: time.Now(), Filter: filter}
 					prometheusSubqueryCache.PrometheusSubqueryCache.Add(originFilter, entryValue)
 					return filter, nil
diff --git a/server/querier/router/response.go b/server/querier/router/response.go
index 9858ab50968..e1de7b5c09b 100644
--- a/server/querier/router/response.go
+++ b/server/querier/router/response.go
@@ -22,7 +22,6 @@ import (
 	"github.com/gin-gonic/gin"
 
 	"github.com/deepflowio/deepflow/server/querier/common"
-	"github.com/deepflowio/deepflow/server/querier/service"
 )
 
 type Response struct {
@@ -68,7 +67,7 @@ func InternalErrorResponse(c *gin.Context, data interface{}, debug interface{},
 func JsonResponse(c *gin.Context, data interface{}, debug interface{}, err error) {
 	if err != nil {
 		switch t := err.(type) {
-		case *service.ServiceError:
+		case *common.ServiceError:
 			switch t.Status {
 			case common.RESOURCE_NOT_FOUND, common.INVALID_POST_DATA, common.RESOURCE_NUM_EXCEEDED,
 				common.SELECTED_RESOURCES_NUM_EXCEEDED: