live: rename url param - assume stable schema by default (#33383)

pkg/services/live/managedstream/runner.go

@@ -92,7 +92,8 @@ func (s *ManagedStream) ListChannels(prefix string) []util.DynMap {
 }
 
 // Push sends frame to the stream and saves it for later retrieval by subscribers.
-func (s *ManagedStream) Push(path string, frame *data.Frame, stableSchema bool) error {
+// unstableSchema flag can be set to disable schema caching for a path.
+func (s *ManagedStream) Push(path string, frame *data.Frame, unstableSchema bool) error {
 	// Keep schema + data for last packet.
 	frameJSON, err := data.FrameToJSON(frame, true, true)
 	if err != nil {
@@ -100,7 +101,7 @@ func (s *ManagedStream) Push(path string, frame *data.Frame, stableSchema bool)
 		return err
 	}
 
-	if stableSchema {
+	if !unstableSchema {
 		// If schema is stable we can safely cache it, and only send values if
 		// stream already has schema cached.
 		s.mu.Lock()

pkg/services/live/managedstream/runner_test.go

@@ -16,11 +16,11 @@ func TestNewManagedStream(t *testing.T) {
 	require.NotNil(t, c)
 }
 
-func TestManagedStream_GetLastPacket(t *testing.T) {
+func TestManagedStream_GetLastPacket_UnstableSchema(t *testing.T) {
 	c := NewManagedStream("a", noopPublisher)
 	_, ok := c.getLastPacket("test")
 	require.False(t, ok)
-	err := c.Push("test", data.NewFrame("hello"), false)
+	err := c.Push("test", data.NewFrame("hello"), true)
 	require.NoError(t, err)
 
 	_, ok = c.getLastPacket("test")
@@ -28,11 +28,11 @@ func TestManagedStream_GetLastPacket(t *testing.T) {
 	require.False(t, ok)
 }
 
-func TestManagedStream_GetLastPacket_StableSchema(t *testing.T) {
+func TestManagedStream_GetLastPacket(t *testing.T) {
 	c := NewManagedStream("a", noopPublisher)
 	_, ok := c.getLastPacket("test")
 	require.False(t, ok)
-	err := c.Push("test", data.NewFrame("hello"), true)
+	err := c.Push("test", data.NewFrame("hello"), false)
 	require.NoError(t, err)
 
 	s, ok := c.getLastPacket("test")