diff --git a/internal/collector/collector_common.go b/internal/collector/collector_common.go
index 1cb78db..3171ff9 100644
--- a/internal/collector/collector_common.go
+++ b/internal/collector/collector_common.go
@@ -104,8 +104,8 @@ func newDeskSetsFromSubsystems(namespace string, subsystems model.Subsystems, co
 	return sets
 }
 
-// UpdateDescSet collect metrics for specified desc set.
-func UpdateDescSet(config Config, descSets []typedDescSet, ch chan<- prometheus.Metric) error {
+// updateAllDescSets collect metrics for specified desc set.
+func updateAllDescSets(config Config, descSets []typedDescSet, ch chan<- prometheus.Metric) error {
 
 	// Get de-duplicated list of databases should be visited.
 	databases := listDeskSetDatabases(descSets)
@@ -145,7 +145,7 @@ func updateFromSingleDatabase(config Config, descSets []typedDescSet, ch chan<-
 			continue
 		}
 
-		err = updateDescSet(conn, s, ch)
+		err = updateSingleDescSet(conn, s, ch)
 		if err != nil {
 			log.Errorf("collect failed: %s; skip", err)
 			continue
@@ -199,7 +199,7 @@ func updateFromMultipleDatabases(config Config, descSets []typedDescSet, userDat
 				s.variableLabels = append([]string{"database"}, s.variableLabels...)
 			}
 
-			err = updateDescSet(conn, s, ch)
+			err = updateSingleDescSet(conn, s, ch)
 			if err != nil {
 				log.Errorf("collect failed: %s; skip", err)
 				continue
@@ -213,8 +213,8 @@ func updateFromMultipleDatabases(config Config, descSets []typedDescSet, userDat
 	return nil
 }
 
-// updateDescSet using passed connection collects metrics for specified descSet and receives it to metric channel.
-func updateDescSet(conn *store.DB, set typedDescSet, ch chan<- prometheus.Metric) error {
+// updateSingleDescSet using passed connection collects metrics for specified descSet and receives it to metric channel.
+func updateSingleDescSet(conn *store.DB, set typedDescSet, ch chan<- prometheus.Metric) error {
 	res, err := conn.Query(set.query)
 	if err != nil {
 		return err
diff --git a/internal/collector/collector_common_test.go b/internal/collector/collector_common_test.go
index 5777fc3..f94e1c1 100644
--- a/internal/collector/collector_common_test.go
+++ b/internal/collector/collector_common_test.go
@@ -96,7 +96,7 @@ func Test_newDeskSetsFromSubsystems(t *testing.T) {
 	}
 }
 
-func Test_UpdateDescSet(t *testing.T) {
+func Test_updateAllDescSets(t *testing.T) {
 	config := Config{ConnString: store.TestPostgresConnStr}
 
 	subsystems := map[string]model.MetricsSubsystem{
@@ -141,7 +141,7 @@ func Test_UpdateDescSet(t *testing.T) {
 	var wg sync.WaitGroup
 	wg.Add(1)
 	go func() {
-		assert.NoError(t, UpdateDescSet(config, desksets, ch))
+		assert.NoError(t, updateAllDescSets(config, desksets, ch))
 		close(ch)
 		wg.Done()
 	}()
@@ -261,7 +261,7 @@ func Test_updateFromMultipleDatabases(t *testing.T) {
 	wg.Wait()
 }
 
-func Test_updateDescSet(t *testing.T) {
+func Test_updateSingleDescSet(t *testing.T) {
 	conn := store.NewTest(t)
 	defer conn.Close()
 
@@ -309,7 +309,7 @@ func Test_updateDescSet(t *testing.T) {
 			var wg sync.WaitGroup
 			wg.Add(1)
 			go func() {
-				assert.NoError(t, updateDescSet(conn, tc.set, ch))
+				assert.NoError(t, updateSingleDescSet(conn, tc.set, ch))
 				close(ch)
 				wg.Done()
 			}()
diff --git a/internal/collector/postgres_archiver.go b/internal/collector/postgres_archiver.go
index 82a579c..96e28e1 100644
--- a/internal/collector/postgres_archiver.go
+++ b/internal/collector/postgres_archiver.go
@@ -67,13 +67,13 @@ func (c *postgresWalArchivingCollector) Update(config Config, ch chan<- promethe
 	}
 
 	// Update builtin metrics.
-	err := UpdateDescSet(config, c.builtin, ch)
+	err := updateAllDescSets(config, c.builtin, ch)
 	if err != nil {
 		return err
 	}
 
 	// Update user-defined metrics.
-	err = UpdateDescSet(config, c.custom, ch)
+	err = updateAllDescSets(config, c.custom, ch)
 	if err != nil {
 		return err
 	}
diff --git a/internal/collector/postgres_custom.go b/internal/collector/postgres_custom.go
index 8487b80..8790f64 100644
--- a/internal/collector/postgres_custom.go
+++ b/internal/collector/postgres_custom.go
@@ -18,5 +18,5 @@ func NewPostgresCustomCollector(constLabels prometheus.Labels, settings model.Co
 
 // Update method collects statistics, parse it and produces metrics that are sent to Prometheus.
 func (c *postgresCustomCollector) Update(config Config, ch chan<- prometheus.Metric) error {
-	return UpdateDescSet(config, c.descSets, ch)
+	return updateAllDescSets(config, c.descSets, ch)
 }