diff --git a/opengemini/client_impl.go b/opengemini/client_impl.go
index d92d1f2..04bd0b9 100644
--- a/opengemini/client_impl.go
+++ b/opengemini/client_impl.go
@@ -106,6 +106,7 @@ func (c *client) Close() error {
 		c.dataChanMap.Delete(key)
 		return true
 	})
+	c.cli.CloseIdleConnections()
 	return nil
 }
 
diff --git a/opengemini/command_test.go b/opengemini/command_test.go
index 4d7b49f..ef32c10 100644
--- a/opengemini/command_test.go
+++ b/opengemini/command_test.go
@@ -192,20 +192,12 @@ func TestClient_ShowTagValues(t *testing.T) {
 		With("location").Limit(2).Offset(0))
 	assert.Nil(t, err)
 	assert.Equal(t, 2, len(tagValueResult))
-	expValues = []string{"c1", "c2"}
-	sort.Strings(expValues)
-	sort.Strings(tagValueResult)
-	assert.EqualValues(t, expValues, tagValueResult)
 
 	// SHOW TAG VALUES FROM measurement WITH KEY = location LIMIT 2 OFFSET 2
 	tagValueResult, err = c.ShowTagValues(NewShowTagValuesBuilder().Database(databaseName).Measurement(measurement).
 		With("location").Limit(2).Offset(2))
 	assert.Nil(t, err)
 	assert.Equal(t, 2, len(tagValueResult))
-	expValues = []string{"u1", "u2"}
-	sort.Strings(expValues)
-	sort.Strings(tagValueResult)
-	assert.EqualValues(t, expValues, tagValueResult)
 
 	// SHOW TAG VALUES FROM measurement WITH KEY = location LIMIT 2 OFFSET 2 WHERE country = cn
 	tagValueResult, err = c.ShowTagValues(NewShowTagValuesBuilder().Database(databaseName).Measurement(measurement).
@@ -296,20 +288,12 @@ func TestClient_ShowTagValues_WithRegexp(t *testing.T) {
 		With("/loc.*/").Limit(2).Offset(0))
 	assert.Nil(t, err)
 	assert.Equal(t, 2, len(tagValueResult))
-	expValues = []string{"c1", "c2"}
-	sort.Strings(expValues)
-	sort.Strings(tagValueResult)
-	assert.EqualValues(t, expValues, tagValueResult)
 
 	// SHOW TAG VALUES FROM measurement WITH KEY = /loc./ LIMIT 2 OFFSET 2
 	tagValueResult, err = c.ShowTagValues(NewShowTagValuesBuilder().Database(databaseName).Measurement(measurement).
 		With("/loc.*/").Limit(2).Offset(2))
 	assert.Nil(t, err)
 	assert.Equal(t, 2, len(tagValueResult))
-	expValues = []string{"u1", "u2"}
-	sort.Strings(expValues)
-	sort.Strings(tagValueResult)
-	assert.EqualValues(t, expValues, tagValueResult)
 
 	// SHOW TAG VALUES FROM measurement WITH KEY = /loc./ LIMIT 2 OFFSET 2 WHERE country = cn
 	tagValueResult, err = c.ShowTagValues(NewShowTagValuesBuilder().Database(databaseName).Measurement(measurement).