fix: truncate_collection status check and add database interceptor su… (#46430)

issue: https://github.com/milvus-io/milvus/issues/46166

Signed-off-by: sijie-ni-0214 <sijie.ni@zilliz.com>

internal/proxy/database_interceptor.go

@@ -28,6 +28,11 @@ func fillDatabase(ctx context.Context, req interface{}) (context.Context, interf
 			r.DbName = GetCurDBNameFromContextOrDefault(ctx)
 		}
 		return ctx, r
+	case *milvuspb.TruncateCollectionRequest:
+		if r.DbName == "" {
+			r.DbName = GetCurDBNameFromContextOrDefault(ctx)
+		}
+		return ctx, r
 	case *milvuspb.HasCollectionRequest:
 		if r.DbName == "" {
 			r.DbName = GetCurDBNameFromContextOrDefault(ctx)

internal/proxy/database_interceptor_test.go

@@ -49,6 +49,7 @@ func TestDatabaseInterceptor(t *testing.T) {
 		availableReqs := []proto.Message{
 			&milvuspb.CreateCollectionRequest{},
 			&milvuspb.DropCollectionRequest{},
+			&milvuspb.TruncateCollectionRequest{},
 			&milvuspb.HasCollectionRequest{},
 			&milvuspb.LoadCollectionRequest{},
 			&milvuspb.ReleaseCollectionRequest{},