fix: restore region selection to avoid breaking main branch (#236)

c++/greptime/v1/region/server.pb.cc

@@ -446,9 +446,9 @@ struct BulkInsertRequestDefaultTypeInternal {
 PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 BulkInsertRequestDefaultTypeInternal _BulkInsertRequest_default_instance_;
 PROTOBUF_CONSTEXPR ArrowIpc::ArrowIpc(
     ::_pbi::ConstantInitialized): _impl_{
-    /*decltype(_impl_.schema_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
+    /*decltype(_impl_.region_selection_)*/{}
+  , /*decltype(_impl_.schema_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.payload_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
-  , /*decltype(_impl_.region_id_)*/uint64_t{0u}
   , /*decltype(_impl_._cached_size_)*/{}} {}
 struct ArrowIpcDefaultTypeInternal {
   PROTOBUF_CONSTEXPR ArrowIpcDefaultTypeInternal()
@@ -459,6 +459,20 @@ struct ArrowIpcDefaultTypeInternal {
   };
 };
 PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 ArrowIpcDefaultTypeInternal _ArrowIpc_default_instance_;
+PROTOBUF_CONSTEXPR RegionSelection::RegionSelection(
+    ::_pbi::ConstantInitialized): _impl_{
+    /*decltype(_impl_.selection_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
+  , /*decltype(_impl_.region_id_)*/uint64_t{0u}
+  , /*decltype(_impl_._cached_size_)*/{}} {}
+struct RegionSelectionDefaultTypeInternal {
+  PROTOBUF_CONSTEXPR RegionSelectionDefaultTypeInternal()
+      : _instance(::_pbi::ConstantInitialized{}) {}
+  ~RegionSelectionDefaultTypeInternal() {}
+  union {
+    RegionSelection _instance;
+  };
+};
+PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 RegionSelectionDefaultTypeInternal _RegionSelection_default_instance_;
 PROTOBUF_CONSTEXPR MitoManifestInfo::MitoManifestInfo(
     ::_pbi::ConstantInitialized): _impl_{
     /*decltype(_impl_.data_manifest_version_)*/uint64_t{0u}
@@ -504,7 +518,7 @@ PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORIT
 }  // namespace region
 }  // namespace v1
 }  // namespace greptime
-static ::_pb::Metadata file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[35];
+static ::_pb::Metadata file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[36];
 static constexpr ::_pb::EnumDescriptor const** file_level_enum_descriptors_greptime_2fv1_2fregion_2fserver_2eproto = nullptr;
 static constexpr ::_pb::ServiceDescriptor const** file_level_service_descriptors_greptime_2fv1_2fregion_2fserver_2eproto = nullptr;
 
@@ -791,9 +805,17 @@ const uint32_t TableStruct_greptime_2fv1_2fregion_2fserver_2eproto::offsets[] PR
   ~0u,  // no _oneof_case_
   ~0u,  // no _weak_field_map_
   ~0u,  // no _inlined_string_donated_
-  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::ArrowIpc, _impl_.region_id_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::region::ArrowIpc, _impl_.schema_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::region::ArrowIpc, _impl_.payload_),
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::ArrowIpc, _impl_.region_selection_),
+  ~0u,  // no _has_bits_
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::RegionSelection, _internal_metadata_),
+  ~0u,  // no _extensions_
+  ~0u,  // no _oneof_case_
+  ~0u,  // no _weak_field_map_
+  ~0u,  // no _inlined_string_donated_
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::RegionSelection, _impl_.region_id_),
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::RegionSelection, _impl_.selection_),
   ~0u,  // no _has_bits_
   PROTOBUF_FIELD_OFFSET(::greptime::v1::region::MitoManifestInfo, _internal_metadata_),
   ~0u,  // no _extensions_
@@ -853,9 +875,10 @@ static const ::_pbi::MigrationSchema schemas[] PROTOBUF_SECTION_VARIABLE(protode
   { 260, -1, -1, sizeof(::greptime::v1::region::RegionColumnDef)},
   { 268, -1, -1, sizeof(::greptime::v1::region::BulkInsertRequest)},
   { 276, -1, -1, sizeof(::greptime::v1::region::ArrowIpc)},
-  { 285, -1, -1, sizeof(::greptime::v1::region::MitoManifestInfo)},
+  { 285, -1, -1, sizeof(::greptime::v1::region::RegionSelection)},
-  { 292, -1, -1, sizeof(::greptime::v1::region::MetricManifestInfo)},
+  { 293, -1, -1, sizeof(::greptime::v1::region::MitoManifestInfo)},
-  { 300, -1, -1, sizeof(::greptime::v1::region::SyncRequest)},
+  { 300, -1, -1, sizeof(::greptime::v1::region::MetricManifestInfo)},
+  { 308, -1, -1, sizeof(::greptime::v1::region::SyncRequest)},
 };
 
 static const ::_pb::Message* const file_default_instances[] = {
@@ -891,6 +914,7 @@ static const ::_pb::Message* const file_default_instances[] = {
   &::greptime::v1::region::_RegionColumnDef_default_instance_._instance,
   &::greptime::v1::region::_BulkInsertRequest_default_instance_._instance,
   &::greptime::v1::region::_ArrowIpc_default_instance_._instance,
+  &::greptime::v1::region::_RegionSelection_default_instance_._instance,
   &::greptime::v1::region::_MitoManifestInfo_default_instance_._instance,
   &::greptime::v1::region::_MetricManifestInfo_default_instance_._instance,
   &::greptime::v1::region::_SyncRequest_default_instance_._instance,
@@ -990,22 +1014,24 @@ const char descriptor_table_protodef_greptime_2fv1_2fregion_2fserver_2eproto[] P
   "\022*\n\ncolumn_def\030\001 \001(\0132\026.greptime.v1.Colum"
   "nDef\022\021\n\tcolumn_id\030\002 \001(\r\"N\n\021BulkInsertReq"
   "uest\0221\n\tarrow_ipc\030\001 \001(\0132\034.greptime.v1.re"
-  "gion.ArrowIpcH\000B\006\n\004body\">\n\010ArrowIpc\022\021\n\tr"
+  "gion.ArrowIpcH\000B\006\n\004body\"j\n\010ArrowIpc\022\016\n\006s"
-  "egion_id\030\001 \001(\004\022\016\n\006schema\030\002 \001(\014\022\017\n\007payloa"
+  "chema\030\001 \001(\014\022\017\n\007payload\030\002 \001(\014\022=\n\020region_s"
-  "d\030\003 \001(\014\"1\n\020MitoManifestInfo\022\035\n\025data_mani"
+  "election\030\003 \003(\0132#.greptime.v1.region.Regi"
-  "fest_version\030\001 \001(\004\"V\n\022MetricManifestInfo"
+  "onSelection\"7\n\017RegionSelection\022\021\n\tregion"
-  "\022\035\n\025data_manifest_version\030\001 \001(\004\022!\n\031metad"
+  "_id\030\001 \001(\004\022\021\n\tselection\030\002 \001(\014\"1\n\020MitoMani"
-  "ata_manifest_version\030\002 \001(\004\"\275\001\n\013SyncReque"
+  "festInfo\022\035\n\025data_manifest_version\030\001 \001(\004\""
-  "st\022\021\n\tregion_id\030\001 \001(\004\022B\n\022mito_manifest_i"
+  "V\n\022MetricManifestInfo\022\035\n\025data_manifest_v"
-  "nfo\030\002 \001(\0132$.greptime.v1.region.MitoManif"
+  "ersion\030\001 \001(\004\022!\n\031metadata_manifest_versio"
-  "estInfoH\000\022F\n\024metric_manifest_info\030\003 \001(\0132"
+  "n\030\002 \001(\004\"\275\001\n\013SyncRequest\022\021\n\tregion_id\030\001 \001"
-  "&.greptime.v1.region.MetricManifestInfoH"
+  "(\004\022B\n\022mito_manifest_info\030\002 \001(\0132$.greptim"
-  "\000B\017\n\rmanifest_info2Y\n\006Region\022O\n\006Handle\022!"
+  "e.v1.region.MitoManifestInfoH\000\022F\n\024metric"
-  ".greptime.v1.region.RegionRequest\032\".grep"
+  "_manifest_info\030\003 \001(\0132&.greptime.v1.regio"
-  "time.v1.region.RegionResponseB]\n\025io.grep"
+  "n.MetricManifestInfoH\000B\017\n\rmanifest_info2"
-  "time.v1.regionB\006ServerZ<github.com/Grept"
+  "Y\n\006Region\022O\n\006Handle\022!.greptime.v1.region"
-  "imeTeam/greptime-proto/go/greptime/v1/re"
+  ".RegionRequest\032\".greptime.v1.region.Regi"
-  "gionb\006proto3"
+  "onResponseB]\n\025io.greptime.v1.regionB\006Ser"
+  "verZ<github.com/GreptimeTeam/greptime-pr"
+  "oto/go/greptime/v1/regionb\006proto3"
   ;
 static const ::_pbi::DescriptorTable* const descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_deps[3] = {
   &::descriptor_table_greptime_2fv1_2fcommon_2eproto,
@@ -1014,9 +1040,9 @@ static const ::_pbi::DescriptorTable* const descriptor_table_greptime_2fv1_2freg
 };
 static ::_pbi::once_flag descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once;
 const ::_pbi::DescriptorTable descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto = {
-    false, false, 4332, descriptor_table_protodef_greptime_2fv1_2fregion_2fserver_2eproto,
+    false, false, 4433, descriptor_table_protodef_greptime_2fv1_2fregion_2fserver_2eproto,
     "greptime/v1/region/server.proto",
-    &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once, descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_deps, 3, 35,
+    &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once, descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_deps, 3, 36,
     schemas, file_default_instances, TableStruct_greptime_2fv1_2fregion_2fserver_2eproto::offsets,
     file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto, file_level_enum_descriptors_greptime_2fv1_2fregion_2fserver_2eproto,
     file_level_service_descriptors_greptime_2fv1_2fregion_2fserver_2eproto,
@@ -8535,9 +8561,9 @@ ArrowIpc::ArrowIpc(const ArrowIpc& from)
   : ::PROTOBUF_NAMESPACE_ID::Message() {
   ArrowIpc* const _this = this; (void)_this;
   new (&_impl_) Impl_{
-      decltype(_impl_.schema_){}
+      decltype(_impl_.region_selection_){from._impl_.region_selection_}
+    , decltype(_impl_.schema_){}
     , decltype(_impl_.payload_){}
-    , decltype(_impl_.region_id_){}
     , /*decltype(_impl_._cached_size_)*/{}};
 
   _internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
@@ -8557,7 +8583,6 @@ ArrowIpc::ArrowIpc(const ArrowIpc& from)
     _this->_impl_.payload_.Set(from._internal_payload(), 
       _this->GetArenaForAllocation());
   }
-  _this->_impl_.region_id_ = from._impl_.region_id_;
   // @@protoc_insertion_point(copy_constructor:greptime.v1.region.ArrowIpc)
 }
 
@@ -8566,9 +8591,9 @@ inline void ArrowIpc::SharedCtor(
   (void)arena;
   (void)is_message_owned;
   new (&_impl_) Impl_{
-      decltype(_impl_.schema_){}
+      decltype(_impl_.region_selection_){arena}
+    , decltype(_impl_.schema_){}
     , decltype(_impl_.payload_){}
-    , decltype(_impl_.region_id_){uint64_t{0u}}
     , /*decltype(_impl_._cached_size_)*/{}
   };
   _impl_.schema_.InitDefault();
@@ -8592,6 +8617,7 @@ ArrowIpc::~ArrowIpc() {
 
 inline void ArrowIpc::SharedDtor() {
   GOOGLE_DCHECK(GetArenaForAllocation() == nullptr);
+  _impl_.region_selection_.~RepeatedPtrField();
   _impl_.schema_.Destroy();
   _impl_.payload_.Destroy();
 }
@@ -8606,9 +8632,9 @@ void ArrowIpc::Clear() {
   // Prevent compiler warnings about cached_has_bits being unused
   (void) cached_has_bits;
 
+  _impl_.region_selection_.Clear();
   _impl_.schema_.ClearToEmpty();
   _impl_.payload_.ClearToEmpty();
-  _impl_.region_id_ = uint64_t{0u};
   _internal_metadata_.Clear<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>();
 }
 
@@ -8618,32 +8644,37 @@ const char* ArrowIpc::_InternalParse(const char* ptr, ::_pbi::ParseContext* ctx)
     uint32_t tag;
     ptr = ::_pbi::ReadTag(ptr, &tag);
     switch (tag >> 3) {
-      // uint64 region_id = 1;
+      // bytes schema = 1;
       case 1:
-        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 8)) {
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 10)) {
-          _impl_.region_id_ = ::PROTOBUF_NAMESPACE_ID::internal::ReadVarint64(&ptr);
-          CHK_(ptr);
-        } else
-          goto handle_unusual;
-        continue;
-      // bytes schema = 2;
-      case 2:
-        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 18)) {
           auto str = _internal_mutable_schema();
           ptr = ::_pbi::InlineGreedyStringParser(str, ptr, ctx);
           CHK_(ptr);
         } else
           goto handle_unusual;
         continue;
-      // bytes payload = 3;
+      // bytes payload = 2;
-      case 3:
+      case 2:
-        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 26)) {
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 18)) {
           auto str = _internal_mutable_payload();
           ptr = ::_pbi::InlineGreedyStringParser(str, ptr, ctx);
           CHK_(ptr);
         } else
           goto handle_unusual;
         continue;
+      // repeated .greptime.v1.region.RegionSelection region_selection = 3;
+      case 3:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 26)) {
+          ptr -= 1;
+          do {
+            ptr += 1;
+            ptr = ctx->ParseMessage(_internal_add_region_selection(), ptr);
+            CHK_(ptr);
+            if (!ctx->DataAvailable(ptr)) break;
+          } while (::PROTOBUF_NAMESPACE_ID::internal::ExpectTag<26>(ptr));
+        } else
+          goto handle_unusual;
+        continue;
       default:
         goto handle_unusual;
     }  // switch
@@ -8673,22 +8704,24 @@ uint8_t* ArrowIpc::_InternalSerialize(
   uint32_t cached_has_bits = 0;
   (void) cached_has_bits;
 
-  // uint64 region_id = 1;
+  // bytes schema = 1;
-  if (this->_internal_region_id() != 0) {
-    target = stream->EnsureSpace(target);
-    target = ::_pbi::WireFormatLite::WriteUInt64ToArray(1, this->_internal_region_id(), target);
-  }
-
-  // bytes schema = 2;
   if (!this->_internal_schema().empty()) {
     target = stream->WriteBytesMaybeAliased(
-        2, this->_internal_schema(), target);
+        1, this->_internal_schema(), target);
   }
 
-  // bytes payload = 3;
+  // bytes payload = 2;
   if (!this->_internal_payload().empty()) {
     target = stream->WriteBytesMaybeAliased(
-        3, this->_internal_payload(), target);
+        2, this->_internal_payload(), target);
+  }
+
+  // repeated .greptime.v1.region.RegionSelection region_selection = 3;
+  for (unsigned i = 0,
+      n = static_cast<unsigned>(this->_internal_region_selection_size()); i < n; i++) {
+    const auto& repfield = this->_internal_region_selection(i);
+    target = ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::
+        InternalWriteMessage(3, repfield, repfield.GetCachedSize(), target, stream);
   }
 
   if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
@@ -8707,25 +8740,27 @@ size_t ArrowIpc::ByteSizeLong() const {
   // Prevent compiler warnings about cached_has_bits being unused
   (void) cached_has_bits;
 
-  // bytes schema = 2;
+  // repeated .greptime.v1.region.RegionSelection region_selection = 3;
+  total_size += 1UL * this->_internal_region_selection_size();
+  for (const auto& msg : this->_impl_.region_selection_) {
+    total_size +=
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::MessageSize(msg);
+  }
+
+  // bytes schema = 1;
   if (!this->_internal_schema().empty()) {
     total_size += 1 +
       ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::BytesSize(
         this->_internal_schema());
   }
 
-  // bytes payload = 3;
+  // bytes payload = 2;
   if (!this->_internal_payload().empty()) {
     total_size += 1 +
       ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::BytesSize(
         this->_internal_payload());
   }
 
-  // uint64 region_id = 1;
-  if (this->_internal_region_id() != 0) {
-    total_size += ::_pbi::WireFormatLite::UInt64SizePlusOne(this->_internal_region_id());
-  }
-
   return MaybeComputeUnknownFieldsSize(total_size, &_impl_._cached_size_);
 }
 
@@ -8744,15 +8779,13 @@ void ArrowIpc::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::PROTO
   uint32_t cached_has_bits = 0;
   (void) cached_has_bits;
 
+  _this->_impl_.region_selection_.MergeFrom(from._impl_.region_selection_);
   if (!from._internal_schema().empty()) {
     _this->_internal_set_schema(from._internal_schema());
   }
   if (!from._internal_payload().empty()) {
     _this->_internal_set_payload(from._internal_payload());
   }
-  if (from._internal_region_id() != 0) {
-    _this->_internal_set_region_id(from._internal_region_id());
-  }
   _this->_internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
 }
 
@@ -8772,6 +8805,7 @@ void ArrowIpc::InternalSwap(ArrowIpc* other) {
   auto* lhs_arena = GetArenaForAllocation();
   auto* rhs_arena = other->GetArenaForAllocation();
   _internal_metadata_.InternalSwap(&other->_internal_metadata_);
+  _impl_.region_selection_.InternalSwap(&other->_impl_.region_selection_);
   ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
       &_impl_.schema_, lhs_arena,
       &other->_impl_.schema_, rhs_arena
@@ -8780,7 +8814,6 @@ void ArrowIpc::InternalSwap(ArrowIpc* other) {
       &_impl_.payload_, lhs_arena,
       &other->_impl_.payload_, rhs_arena
   );
-  swap(_impl_.region_id_, other->_impl_.region_id_);
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata ArrowIpc::GetMetadata() const {
@@ -8791,6 +8824,231 @@ void ArrowIpc::InternalSwap(ArrowIpc* other) {
 
 // ===================================================================
 
+class RegionSelection::_Internal {
+ public:
+};
+
+RegionSelection::RegionSelection(::PROTOBUF_NAMESPACE_ID::Arena* arena,
+                         bool is_message_owned)
+  : ::PROTOBUF_NAMESPACE_ID::Message(arena, is_message_owned) {
+  SharedCtor(arena, is_message_owned);
+  // @@protoc_insertion_point(arena_constructor:greptime.v1.region.RegionSelection)
+}
+RegionSelection::RegionSelection(const RegionSelection& from)
+  : ::PROTOBUF_NAMESPACE_ID::Message() {
+  RegionSelection* const _this = this; (void)_this;
+  new (&_impl_) Impl_{
+      decltype(_impl_.selection_){}
+    , decltype(_impl_.region_id_){}
+    , /*decltype(_impl_._cached_size_)*/{}};
+
+  _internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
+  _impl_.selection_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.selection_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (!from._internal_selection().empty()) {
+    _this->_impl_.selection_.Set(from._internal_selection(), 
+      _this->GetArenaForAllocation());
+  }
+  _this->_impl_.region_id_ = from._impl_.region_id_;
+  // @@protoc_insertion_point(copy_constructor:greptime.v1.region.RegionSelection)
+}
+
+inline void RegionSelection::SharedCtor(
+    ::_pb::Arena* arena, bool is_message_owned) {
+  (void)arena;
+  (void)is_message_owned;
+  new (&_impl_) Impl_{
+      decltype(_impl_.selection_){}
+    , decltype(_impl_.region_id_){uint64_t{0u}}
+    , /*decltype(_impl_._cached_size_)*/{}
+  };
+  _impl_.selection_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.selection_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+}
+
+RegionSelection::~RegionSelection() {
+  // @@protoc_insertion_point(destructor:greptime.v1.region.RegionSelection)
+  if (auto *arena = _internal_metadata_.DeleteReturnArena<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>()) {
+  (void)arena;
+    return;
+  }
+  SharedDtor();
+}
+
+inline void RegionSelection::SharedDtor() {
+  GOOGLE_DCHECK(GetArenaForAllocation() == nullptr);
+  _impl_.selection_.Destroy();
+}
+
+void RegionSelection::SetCachedSize(int size) const {
+  _impl_._cached_size_.Set(size);
+}
+
+void RegionSelection::Clear() {
+// @@protoc_insertion_point(message_clear_start:greptime.v1.region.RegionSelection)
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  _impl_.selection_.ClearToEmpty();
+  _impl_.region_id_ = uint64_t{0u};
+  _internal_metadata_.Clear<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>();
+}
+
+const char* RegionSelection::_InternalParse(const char* ptr, ::_pbi::ParseContext* ctx) {
+#define CHK_(x) if (PROTOBUF_PREDICT_FALSE(!(x))) goto failure
+  while (!ctx->Done(&ptr)) {
+    uint32_t tag;
+    ptr = ::_pbi::ReadTag(ptr, &tag);
+    switch (tag >> 3) {
+      // uint64 region_id = 1;
+      case 1:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 8)) {
+          _impl_.region_id_ = ::PROTOBUF_NAMESPACE_ID::internal::ReadVarint64(&ptr);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      // bytes selection = 2;
+      case 2:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 18)) {
+          auto str = _internal_mutable_selection();
+          ptr = ::_pbi::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      default:
+        goto handle_unusual;
+    }  // switch
+  handle_unusual:
+    if ((tag == 0) || ((tag & 7) == 4)) {
+      CHK_(ptr);
+      ctx->SetLastTag(tag);
+      goto message_done;
+    }
+    ptr = UnknownFieldParse(
+        tag,
+        _internal_metadata_.mutable_unknown_fields<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(),
+        ptr, ctx);
+    CHK_(ptr != nullptr);
+  }  // while
+message_done:
+  return ptr;
+failure:
+  ptr = nullptr;
+  goto message_done;
+#undef CHK_
+}
+
+uint8_t* RegionSelection::_InternalSerialize(
+    uint8_t* target, ::PROTOBUF_NAMESPACE_ID::io::EpsCopyOutputStream* stream) const {
+  // @@protoc_insertion_point(serialize_to_array_start:greptime.v1.region.RegionSelection)
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  // uint64 region_id = 1;
+  if (this->_internal_region_id() != 0) {
+    target = stream->EnsureSpace(target);
+    target = ::_pbi::WireFormatLite::WriteUInt64ToArray(1, this->_internal_region_id(), target);
+  }
+
+  // bytes selection = 2;
+  if (!this->_internal_selection().empty()) {
+    target = stream->WriteBytesMaybeAliased(
+        2, this->_internal_selection(), target);
+  }
+
+  if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
+    target = ::_pbi::WireFormat::InternalSerializeUnknownFieldsToArray(
+        _internal_metadata_.unknown_fields<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(::PROTOBUF_NAMESPACE_ID::UnknownFieldSet::default_instance), target, stream);
+  }
+  // @@protoc_insertion_point(serialize_to_array_end:greptime.v1.region.RegionSelection)
+  return target;
+}
+
+size_t RegionSelection::ByteSizeLong() const {
+// @@protoc_insertion_point(message_byte_size_start:greptime.v1.region.RegionSelection)
+  size_t total_size = 0;
+
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  // bytes selection = 2;
+  if (!this->_internal_selection().empty()) {
+    total_size += 1 +
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::BytesSize(
+        this->_internal_selection());
+  }
+
+  // uint64 region_id = 1;
+  if (this->_internal_region_id() != 0) {
+    total_size += ::_pbi::WireFormatLite::UInt64SizePlusOne(this->_internal_region_id());
+  }
+
+  return MaybeComputeUnknownFieldsSize(total_size, &_impl_._cached_size_);
+}
+
+const ::PROTOBUF_NAMESPACE_ID::Message::ClassData RegionSelection::_class_data_ = {
+    ::PROTOBUF_NAMESPACE_ID::Message::CopyWithSourceCheck,
+    RegionSelection::MergeImpl
+};
+const ::PROTOBUF_NAMESPACE_ID::Message::ClassData*RegionSelection::GetClassData() const { return &_class_data_; }
+
+
+void RegionSelection::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::PROTOBUF_NAMESPACE_ID::Message& from_msg) {
+  auto* const _this = static_cast<RegionSelection*>(&to_msg);
+  auto& from = static_cast<const RegionSelection&>(from_msg);
+  // @@protoc_insertion_point(class_specific_merge_from_start:greptime.v1.region.RegionSelection)
+  GOOGLE_DCHECK_NE(&from, _this);
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  if (!from._internal_selection().empty()) {
+    _this->_internal_set_selection(from._internal_selection());
+  }
+  if (from._internal_region_id() != 0) {
+    _this->_internal_set_region_id(from._internal_region_id());
+  }
+  _this->_internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
+}
+
+void RegionSelection::CopyFrom(const RegionSelection& from) {
+// @@protoc_insertion_point(class_specific_copy_from_start:greptime.v1.region.RegionSelection)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool RegionSelection::IsInitialized() const {
+  return true;
+}
+
+void RegionSelection::InternalSwap(RegionSelection* other) {
+  using std::swap;
+  auto* lhs_arena = GetArenaForAllocation();
+  auto* rhs_arena = other->GetArenaForAllocation();
+  _internal_metadata_.InternalSwap(&other->_internal_metadata_);
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &_impl_.selection_, lhs_arena,
+      &other->_impl_.selection_, rhs_arena
+  );
+  swap(_impl_.region_id_, other->_impl_.region_id_);
+}
+
+::PROTOBUF_NAMESPACE_ID::Metadata RegionSelection::GetMetadata() const {
+  return ::_pbi::AssignDescriptors(
+      &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_getter, &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once,
+      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[32]);
+}
+
+// ===================================================================
+
 class MitoManifestInfo::_Internal {
  public:
 };
@@ -8964,7 +9222,7 @@ void MitoManifestInfo::InternalSwap(MitoManifestInfo* other) {
 ::PROTOBUF_NAMESPACE_ID::Metadata MitoManifestInfo::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
       &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_getter, &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once,
-      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[32]);
+      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[33]);
 }
 
 // ===================================================================
@@ -9175,7 +9433,7 @@ void MetricManifestInfo::InternalSwap(MetricManifestInfo* other) {
 ::PROTOBUF_NAMESPACE_ID::Metadata MetricManifestInfo::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
       &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_getter, &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once,
-      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[33]);
+      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[34]);
 }
 
 // ===================================================================
@@ -9507,7 +9765,7 @@ void SyncRequest::InternalSwap(SyncRequest* other) {
 ::PROTOBUF_NAMESPACE_ID::Metadata SyncRequest::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
       &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_getter, &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once,
-      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[34]);
+      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[35]);
 }
 
 // @@protoc_insertion_point(namespace_scope)
@@ -9643,6 +9901,10 @@ template<> PROTOBUF_NOINLINE ::greptime::v1::region::ArrowIpc*
 Arena::CreateMaybeMessage< ::greptime::v1::region::ArrowIpc >(Arena* arena) {
   return Arena::CreateMessageInternal< ::greptime::v1::region::ArrowIpc >(arena);
 }
+template<> PROTOBUF_NOINLINE ::greptime::v1::region::RegionSelection*
+Arena::CreateMaybeMessage< ::greptime::v1::region::RegionSelection >(Arena* arena) {
+  return Arena::CreateMessageInternal< ::greptime::v1::region::RegionSelection >(arena);
+}
 template<> PROTOBUF_NOINLINE ::greptime::v1::region::MitoManifestInfo*
 Arena::CreateMaybeMessage< ::greptime::v1::region::MitoManifestInfo >(Arena* arena) {
   return Arena::CreateMessageInternal< ::greptime::v1::region::MitoManifestInfo >(arena);

c++/greptime/v1/region/server.pb.h

@@ -147,6 +147,9 @@ extern RegionResponseDefaultTypeInternal _RegionResponse_default_instance_;
 class RegionResponse_ExtensionsEntry_DoNotUse;
 struct RegionResponse_ExtensionsEntry_DoNotUseDefaultTypeInternal;
 extern RegionResponse_ExtensionsEntry_DoNotUseDefaultTypeInternal _RegionResponse_ExtensionsEntry_DoNotUse_default_instance_;
+class RegionSelection;
+struct RegionSelectionDefaultTypeInternal;
+extern RegionSelectionDefaultTypeInternal _RegionSelection_default_instance_;
 class Regular;
 struct RegularDefaultTypeInternal;
 extern RegularDefaultTypeInternal _Regular_default_instance_;
@@ -194,6 +197,7 @@ template<> ::greptime::v1::region::RegionRequestHeader* Arena::CreateMaybeMessag
 template<> ::greptime::v1::region::RegionRequestHeader_TracingContextEntry_DoNotUse* Arena::CreateMaybeMessage<::greptime::v1::region::RegionRequestHeader_TracingContextEntry_DoNotUse>(Arena*);
 template<> ::greptime::v1::region::RegionResponse* Arena::CreateMaybeMessage<::greptime::v1::region::RegionResponse>(Arena*);
 template<> ::greptime::v1::region::RegionResponse_ExtensionsEntry_DoNotUse* Arena::CreateMaybeMessage<::greptime::v1::region::RegionResponse_ExtensionsEntry_DoNotUse>(Arena*);
+template<> ::greptime::v1::region::RegionSelection* Arena::CreateMaybeMessage<::greptime::v1::region::RegionSelection>(Arena*);
 template<> ::greptime::v1::region::Regular* Arena::CreateMaybeMessage<::greptime::v1::region::Regular>(Arena*);
 template<> ::greptime::v1::region::StrictWindow* Arena::CreateMaybeMessage<::greptime::v1::region::StrictWindow>(Arena*);
 template<> ::greptime::v1::region::SyncRequest* Arena::CreateMaybeMessage<::greptime::v1::region::SyncRequest>(Arena*);
@@ -5483,11 +5487,29 @@ class ArrowIpc final :
   // accessors -------------------------------------------------------
 
   enum : int {
-    kSchemaFieldNumber = 2,
+    kRegionSelectionFieldNumber = 3,
-    kPayloadFieldNumber = 3,
+    kSchemaFieldNumber = 1,
-    kRegionIdFieldNumber = 1,
+    kPayloadFieldNumber = 2,
   };
-  // bytes schema = 2;
+  // repeated .greptime.v1.region.RegionSelection region_selection = 3;
+  int region_selection_size() const;
+  private:
+  int _internal_region_selection_size() const;
+  public:
+  void clear_region_selection();
+  ::greptime::v1::region::RegionSelection* mutable_region_selection(int index);
+  ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::RegionSelection >*
+      mutable_region_selection();
+  private:
+  const ::greptime::v1::region::RegionSelection& _internal_region_selection(int index) const;
+  ::greptime::v1::region::RegionSelection* _internal_add_region_selection();
+  public:
+  const ::greptime::v1::region::RegionSelection& region_selection(int index) const;
+  ::greptime::v1::region::RegionSelection* add_region_selection();
+  const ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::RegionSelection >&
+      region_selection() const;
+
+  // bytes schema = 1;
   void clear_schema();
   const std::string& schema() const;
   template <typename ArgT0 = const std::string&, typename... ArgT>
@@ -5501,7 +5523,7 @@ class ArrowIpc final :
   std::string* _internal_mutable_schema();
   public:
 
-  // bytes payload = 3;
+  // bytes payload = 2;
   void clear_payload();
   const std::string& payload() const;
   template <typename ArgT0 = const std::string&, typename... ArgT>
@@ -5515,6 +5537,162 @@ class ArrowIpc final :
   std::string* _internal_mutable_payload();
   public:
 
+  // @@protoc_insertion_point(class_scope:greptime.v1.region.ArrowIpc)
+ private:
+  class _Internal;
+
+  template <typename T> friend class ::PROTOBUF_NAMESPACE_ID::Arena::InternalHelper;
+  typedef void InternalArenaConstructable_;
+  typedef void DestructorSkippable_;
+  struct Impl_ {
+    ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::RegionSelection > region_selection_;
+    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr schema_;
+    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr payload_;
+    mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
+  };
+  union { Impl_ _impl_; };
+  friend struct ::TableStruct_greptime_2fv1_2fregion_2fserver_2eproto;
+};
+// -------------------------------------------------------------------
+
+class RegionSelection final :
+    public ::PROTOBUF_NAMESPACE_ID::Message /* @@protoc_insertion_point(class_definition:greptime.v1.region.RegionSelection) */ {
+ public:
+  inline RegionSelection() : RegionSelection(nullptr) {}
+  ~RegionSelection() override;
+  explicit PROTOBUF_CONSTEXPR RegionSelection(::PROTOBUF_NAMESPACE_ID::internal::ConstantInitialized);
+
+  RegionSelection(const RegionSelection& from);
+  RegionSelection(RegionSelection&& from) noexcept
+    : RegionSelection() {
+    *this = ::std::move(from);
+  }
+
+  inline RegionSelection& operator=(const RegionSelection& from) {
+    CopyFrom(from);
+    return *this;
+  }
+  inline RegionSelection& operator=(RegionSelection&& from) noexcept {
+    if (this == &from) return *this;
+    if (GetOwningArena() == from.GetOwningArena()
+  #ifdef PROTOBUF_FORCE_COPY_IN_MOVE
+        && GetOwningArena() != nullptr
+  #endif  // !PROTOBUF_FORCE_COPY_IN_MOVE
+    ) {
+      InternalSwap(&from);
+    } else {
+      CopyFrom(from);
+    }
+    return *this;
+  }
+
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return default_instance().GetMetadata().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return default_instance().GetMetadata().reflection;
+  }
+  static const RegionSelection& default_instance() {
+    return *internal_default_instance();
+  }
+  static inline const RegionSelection* internal_default_instance() {
+    return reinterpret_cast<const RegionSelection*>(
+               &_RegionSelection_default_instance_);
+  }
+  static constexpr int kIndexInFileMessages =
+    32;
+
+  friend void swap(RegionSelection& a, RegionSelection& b) {
+    a.Swap(&b);
+  }
+  inline void Swap(RegionSelection* other) {
+    if (other == this) return;
+  #ifdef PROTOBUF_FORCE_COPY_IN_SWAP
+    if (GetOwningArena() != nullptr &&
+        GetOwningArena() == other->GetOwningArena()) {
+   #else  // PROTOBUF_FORCE_COPY_IN_SWAP
+    if (GetOwningArena() == other->GetOwningArena()) {
+  #endif  // !PROTOBUF_FORCE_COPY_IN_SWAP
+      InternalSwap(other);
+    } else {
+      ::PROTOBUF_NAMESPACE_ID::internal::GenericSwap(this, other);
+    }
+  }
+  void UnsafeArenaSwap(RegionSelection* other) {
+    if (other == this) return;
+    GOOGLE_DCHECK(GetOwningArena() == other->GetOwningArena());
+    InternalSwap(other);
+  }
+
+  // implements Message ----------------------------------------------
+
+  RegionSelection* New(::PROTOBUF_NAMESPACE_ID::Arena* arena = nullptr) const final {
+    return CreateMaybeMessage<RegionSelection>(arena);
+  }
+  using ::PROTOBUF_NAMESPACE_ID::Message::CopyFrom;
+  void CopyFrom(const RegionSelection& from);
+  using ::PROTOBUF_NAMESPACE_ID::Message::MergeFrom;
+  void MergeFrom( const RegionSelection& from) {
+    RegionSelection::MergeImpl(*this, from);
+  }
+  private:
+  static void MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::PROTOBUF_NAMESPACE_ID::Message& from_msg);
+  public:
+  PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final;
+  bool IsInitialized() const final;
+
+  size_t ByteSizeLong() const final;
+  const char* _InternalParse(const char* ptr, ::PROTOBUF_NAMESPACE_ID::internal::ParseContext* ctx) final;
+  uint8_t* _InternalSerialize(
+      uint8_t* target, ::PROTOBUF_NAMESPACE_ID::io::EpsCopyOutputStream* stream) const final;
+  int GetCachedSize() const final { return _impl_._cached_size_.Get(); }
+
+  private:
+  void SharedCtor(::PROTOBUF_NAMESPACE_ID::Arena* arena, bool is_message_owned);
+  void SharedDtor();
+  void SetCachedSize(int size) const final;
+  void InternalSwap(RegionSelection* other);
+
+  private:
+  friend class ::PROTOBUF_NAMESPACE_ID::internal::AnyMetadata;
+  static ::PROTOBUF_NAMESPACE_ID::StringPiece FullMessageName() {
+    return "greptime.v1.region.RegionSelection";
+  }
+  protected:
+  explicit RegionSelection(::PROTOBUF_NAMESPACE_ID::Arena* arena,
+                       bool is_message_owned = false);
+  public:
+
+  static const ClassData _class_data_;
+  const ::PROTOBUF_NAMESPACE_ID::Message::ClassData*GetClassData() const final;
+
+  ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+
+  // nested types ----------------------------------------------------
+
+  // accessors -------------------------------------------------------
+
+  enum : int {
+    kSelectionFieldNumber = 2,
+    kRegionIdFieldNumber = 1,
+  };
+  // bytes selection = 2;
+  void clear_selection();
+  const std::string& selection() const;
+  template <typename ArgT0 = const std::string&, typename... ArgT>
+  void set_selection(ArgT0&& arg0, ArgT... args);
+  std::string* mutable_selection();
+  PROTOBUF_NODISCARD std::string* release_selection();
+  void set_allocated_selection(std::string* selection);
+  private:
+  const std::string& _internal_selection() const;
+  inline PROTOBUF_ALWAYS_INLINE void _internal_set_selection(const std::string& value);
+  std::string* _internal_mutable_selection();
+  public:
+
   // uint64 region_id = 1;
   void clear_region_id();
   uint64_t region_id() const;
@@ -5524,7 +5702,7 @@ class ArrowIpc final :
   void _internal_set_region_id(uint64_t value);
   public:
 
-  // @@protoc_insertion_point(class_scope:greptime.v1.region.ArrowIpc)
+  // @@protoc_insertion_point(class_scope:greptime.v1.region.RegionSelection)
  private:
   class _Internal;
 
@@ -5532,8 +5710,7 @@ class ArrowIpc final :
   typedef void InternalArenaConstructable_;
   typedef void DestructorSkippable_;
   struct Impl_ {
-    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr schema_;
+    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr selection_;
-    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr payload_;
     uint64_t region_id_;
     mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
   };
@@ -5590,7 +5767,7 @@ class MitoManifestInfo final :
                &_MitoManifestInfo_default_instance_);
   }
   static constexpr int kIndexInFileMessages =
-    32;
+    33;
 
   friend void swap(MitoManifestInfo& a, MitoManifestInfo& b) {
     a.Swap(&b);
@@ -5738,7 +5915,7 @@ class MetricManifestInfo final :
                &_MetricManifestInfo_default_instance_);
   }
   static constexpr int kIndexInFileMessages =
-    33;
+    34;
 
   friend void swap(MetricManifestInfo& a, MetricManifestInfo& b) {
     a.Swap(&b);
@@ -5903,7 +6080,7 @@ class SyncRequest final :
                &_SyncRequest_default_instance_);
   }
   static constexpr int kIndexInFileMessages =
-    34;
+    35;
 
   friend void swap(SyncRequest& a, SyncRequest& b) {
     a.Swap(&b);
@@ -9960,27 +10137,7 @@ inline BulkInsertRequest::BodyCase BulkInsertRequest::body_case() const {
 
 // ArrowIpc
 
-// uint64 region_id = 1;
+// bytes schema = 1;
-inline void ArrowIpc::clear_region_id() {
-  _impl_.region_id_ = uint64_t{0u};
-}
-inline uint64_t ArrowIpc::_internal_region_id() const {
-  return _impl_.region_id_;
-}
-inline uint64_t ArrowIpc::region_id() const {
-  // @@protoc_insertion_point(field_get:greptime.v1.region.ArrowIpc.region_id)
-  return _internal_region_id();
-}
-inline void ArrowIpc::_internal_set_region_id(uint64_t value) {
-  
-  _impl_.region_id_ = value;
-}
-inline void ArrowIpc::set_region_id(uint64_t value) {
-  _internal_set_region_id(value);
-  // @@protoc_insertion_point(field_set:greptime.v1.region.ArrowIpc.region_id)
-}
-
-// bytes schema = 2;
 inline void ArrowIpc::clear_schema() {
   _impl_.schema_.ClearToEmpty();
 }
@@ -10030,7 +10187,7 @@ inline void ArrowIpc::set_allocated_schema(std::string* schema) {
   // @@protoc_insertion_point(field_set_allocated:greptime.v1.region.ArrowIpc.schema)
 }
 
-// bytes payload = 3;
+// bytes payload = 2;
 inline void ArrowIpc::clear_payload() {
   _impl_.payload_.ClearToEmpty();
 }
@@ -10080,6 +10237,120 @@ inline void ArrowIpc::set_allocated_payload(std::string* payload) {
   // @@protoc_insertion_point(field_set_allocated:greptime.v1.region.ArrowIpc.payload)
 }
 
+// repeated .greptime.v1.region.RegionSelection region_selection = 3;
+inline int ArrowIpc::_internal_region_selection_size() const {
+  return _impl_.region_selection_.size();
+}
+inline int ArrowIpc::region_selection_size() const {
+  return _internal_region_selection_size();
+}
+inline void ArrowIpc::clear_region_selection() {
+  _impl_.region_selection_.Clear();
+}
+inline ::greptime::v1::region::RegionSelection* ArrowIpc::mutable_region_selection(int index) {
+  // @@protoc_insertion_point(field_mutable:greptime.v1.region.ArrowIpc.region_selection)
+  return _impl_.region_selection_.Mutable(index);
+}
+inline ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::RegionSelection >*
+ArrowIpc::mutable_region_selection() {
+  // @@protoc_insertion_point(field_mutable_list:greptime.v1.region.ArrowIpc.region_selection)
+  return &_impl_.region_selection_;
+}
+inline const ::greptime::v1::region::RegionSelection& ArrowIpc::_internal_region_selection(int index) const {
+  return _impl_.region_selection_.Get(index);
+}
+inline const ::greptime::v1::region::RegionSelection& ArrowIpc::region_selection(int index) const {
+  // @@protoc_insertion_point(field_get:greptime.v1.region.ArrowIpc.region_selection)
+  return _internal_region_selection(index);
+}
+inline ::greptime::v1::region::RegionSelection* ArrowIpc::_internal_add_region_selection() {
+  return _impl_.region_selection_.Add();
+}
+inline ::greptime::v1::region::RegionSelection* ArrowIpc::add_region_selection() {
+  ::greptime::v1::region::RegionSelection* _add = _internal_add_region_selection();
+  // @@protoc_insertion_point(field_add:greptime.v1.region.ArrowIpc.region_selection)
+  return _add;
+}
+inline const ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::RegionSelection >&
+ArrowIpc::region_selection() const {
+  // @@protoc_insertion_point(field_list:greptime.v1.region.ArrowIpc.region_selection)
+  return _impl_.region_selection_;
+}
+
+// -------------------------------------------------------------------
+
+// RegionSelection
+
+// uint64 region_id = 1;
+inline void RegionSelection::clear_region_id() {
+  _impl_.region_id_ = uint64_t{0u};
+}
+inline uint64_t RegionSelection::_internal_region_id() const {
+  return _impl_.region_id_;
+}
+inline uint64_t RegionSelection::region_id() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.region.RegionSelection.region_id)
+  return _internal_region_id();
+}
+inline void RegionSelection::_internal_set_region_id(uint64_t value) {
+  
+  _impl_.region_id_ = value;
+}
+inline void RegionSelection::set_region_id(uint64_t value) {
+  _internal_set_region_id(value);
+  // @@protoc_insertion_point(field_set:greptime.v1.region.RegionSelection.region_id)
+}
+
+// bytes selection = 2;
+inline void RegionSelection::clear_selection() {
+  _impl_.selection_.ClearToEmpty();
+}
+inline const std::string& RegionSelection::selection() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.region.RegionSelection.selection)
+  return _internal_selection();
+}
+template <typename ArgT0, typename... ArgT>
+inline PROTOBUF_ALWAYS_INLINE
+void RegionSelection::set_selection(ArgT0&& arg0, ArgT... args) {
+ 
+ _impl_.selection_.SetBytes(static_cast<ArgT0 &&>(arg0), args..., GetArenaForAllocation());
+  // @@protoc_insertion_point(field_set:greptime.v1.region.RegionSelection.selection)
+}
+inline std::string* RegionSelection::mutable_selection() {
+  std::string* _s = _internal_mutable_selection();
+  // @@protoc_insertion_point(field_mutable:greptime.v1.region.RegionSelection.selection)
+  return _s;
+}
+inline const std::string& RegionSelection::_internal_selection() const {
+  return _impl_.selection_.Get();
+}
+inline void RegionSelection::_internal_set_selection(const std::string& value) {
+  
+  _impl_.selection_.Set(value, GetArenaForAllocation());
+}
+inline std::string* RegionSelection::_internal_mutable_selection() {
+  
+  return _impl_.selection_.Mutable(GetArenaForAllocation());
+}
+inline std::string* RegionSelection::release_selection() {
+  // @@protoc_insertion_point(field_release:greptime.v1.region.RegionSelection.selection)
+  return _impl_.selection_.Release();
+}
+inline void RegionSelection::set_allocated_selection(std::string* selection) {
+  if (selection != nullptr) {
+    
+  } else {
+    
+  }
+  _impl_.selection_.SetAllocated(selection, GetArenaForAllocation());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (_impl_.selection_.IsDefault()) {
+    _impl_.selection_.Set("", GetArenaForAllocation());
+  }
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  // @@protoc_insertion_point(field_set_allocated:greptime.v1.region.RegionSelection.selection)
+}
+
 // -------------------------------------------------------------------
 
 // MitoManifestInfo
@@ -10400,6 +10671,8 @@ inline SyncRequest::ManifestInfoCase SyncRequest::manifest_info_case() const {
 
 // -------------------------------------------------------------------
 
+// -------------------------------------------------------------------
+
 
 // @@protoc_insertion_point(namespace_scope)
 

proto/greptime/v1/region/server.proto

@@ -193,9 +193,14 @@ message BulkInsertRequest {
 }
 
 message ArrowIpc {
+  bytes schema = 1;
+  bytes payload = 2;
+  repeated RegionSelection region_selection = 3;
+}
+
+message RegionSelection {
   uint64 region_id = 1;
-  bytes schema = 2;
+  bytes selection = 2;
-  bytes payload = 3;
 }
 
 // Manifest info for mito engine.