follow to memalloc classify (#3346)

Author: heavycrystal

flow/alerting/classifier.go

@@ -160,8 +160,8 @@ var (
 	// Postgres 16.9/17.5 etc. introduced a bug where certain workloads can cause logical replication to
 	// request a memory allocation of >1GB, which is not allowed by Postgres. Fixed already, but we need to handle this error
 	// https://github.com/postgres/postgres/commit/d87d07b7ad3b782cb74566cd771ecdb2823adf6a
-	ErrorPostgresSlotMemalloc = ErrorClass{
-		Class: "ERROR_POSTGRES_SLOT_MEMALLOC", action: NotifyUser,
+	ErrorNotifyPostgresSlotMemalloc = ErrorClass{
+		Class: "NOTIFY_POSTGRES_SLOT_MEMALLOC", action: NotifyUser,
 	}
 )
 
@@ -329,7 +329,7 @@ func GetErrorClass(ctx context.Context, err error) (ErrorClass, ErrorInfo) {
 			}
 
 			if strings.Contains(pgErr.Message, "invalid memory alloc request size") {
-				return ErrorPostgresSlotMemalloc, pgErrorInfo
+				return ErrorNotifyPostgresSlotMemalloc, pgErrorInfo
 			}
 
 			// Fall through for other internal errors

flow/alerting/classifier_test.go

@@ -160,7 +160,7 @@ func TestPostgresMemoryAllocErrorShouldBeSlotMemalloc(t *testing.T) {
 		},
 	}
 	errorClass, errInfo := GetErrorClass(t.Context(), fmt.Errorf("error in WAL: %w", err))
-	assert.Equal(t, ErrorPostgresSlotMemalloc, errorClass, "Unexpected error class")
+	assert.Equal(t, ErrorNotifyPostgresSlotMemalloc, errorClass, "Unexpected error class")
 	assert.Equal(t, ErrorInfo{
 		Source: ErrorSourcePostgres,
 		Code:   pgerrcode.InternalError,