feat: Add DropTableTask, AlterTableTask (#54)

* feat: use type instead of pb bytes

* feat: add table_info to CreateTableTask

* fix: remove unused fields

* feat: bring create route method back

* feat: add table_id in SubmitDdlTaskResponse

* feat: add drop table task

* feat: add alter table task

* chore: allow large_enum_variant

* chore: apply suggestions from CR

go/greptime/v1/meta/route_grpc.pb.go

@@ -22,6 +22,7 @@ const _ = grpc.SupportPackageIsVersion7
 //
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type RouterClient interface {
+	Create(ctx context.Context, in *CreateRequest, opts ...grpc.CallOption) (*RouteResponse, error)
 	// Fetch routing information for tables. The smallest unit is the complete
 	// routing information(all regions) of a table.
 	//
@@ -56,6 +57,15 @@ func NewRouterClient(cc grpc.ClientConnInterface) RouterClient {
 	return &routerClient{cc}
 }
 
+func (c *routerClient) Create(ctx context.Context, in *CreateRequest, opts ...grpc.CallOption) (*RouteResponse, error) {
+	out := new(RouteResponse)
+	err := c.cc.Invoke(ctx, "/greptime.v1.meta.Router/Create", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *routerClient) Route(ctx context.Context, in *RouteRequest, opts ...grpc.CallOption) (*RouteResponse, error) {
 	out := new(RouteResponse)
 	err := c.cc.Invoke(ctx, "/greptime.v1.meta.Router/Route", in, out, opts...)
@@ -78,6 +88,7 @@ func (c *routerClient) Delete(ctx context.Context, in *DeleteRequest, opts ...gr
 // All implementations must embed UnimplementedRouterServer
 // for forward compatibility
 type RouterServer interface {
+	Create(context.Context, *CreateRequest) (*RouteResponse, error)
 	// Fetch routing information for tables. The smallest unit is the complete
 	// routing information(all regions) of a table.
 	//
@@ -109,6 +120,9 @@ type RouterServer interface {
 type UnimplementedRouterServer struct {
 }
 
+func (UnimplementedRouterServer) Create(context.Context, *CreateRequest) (*RouteResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Create not implemented")
+}
 func (UnimplementedRouterServer) Route(context.Context, *RouteRequest) (*RouteResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Route not implemented")
 }
@@ -128,6 +142,24 @@ func RegisterRouterServer(s grpc.ServiceRegistrar, srv RouterServer) {
 	s.RegisterService(&Router_ServiceDesc, srv)
 }
 
+func _Router_Create_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CreateRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(RouterServer).Create(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/greptime.v1.meta.Router/Create",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(RouterServer).Create(ctx, req.(*CreateRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Router_Route_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(RouteRequest)
 	if err := dec(in); err != nil {
@@ -171,6 +203,10 @@ var Router_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "greptime.v1.meta.Router",
 	HandlerType: (*RouterServer)(nil),
 	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Create",
+			Handler:    _Router_Create_Handler,
+		},
 		{
 			MethodName: "Route",
 			Handler:    _Router_Route_Handler,