feat(promql): add lookback parameter (#145)

* feat(promql): add lookback parameter

* feat(promql): add lookback parameter to InstantQuery

c++/greptime/v1/prom.pb.cc

@@ -55,6 +55,7 @@ PROTOBUF_CONSTEXPR PromInstantQuery::PromInstantQuery(
     ::_pbi::ConstantInitialized): _impl_{
     /*decltype(_impl_.query_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.time_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
+  , /*decltype(_impl_.lookback_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_._cached_size_)*/{}} {}
 struct PromInstantQueryDefaultTypeInternal {
   PROTOBUF_CONSTEXPR PromInstantQueryDefaultTypeInternal()
@@ -71,6 +72,7 @@ PROTOBUF_CONSTEXPR PromRangeQuery::PromRangeQuery(
   , /*decltype(_impl_.start_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.end_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.step_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
+  , /*decltype(_impl_.lookback_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_._cached_size_)*/{}} {}
 struct PromRangeQueryDefaultTypeInternal {
   PROTOBUF_CONSTEXPR PromRangeQueryDefaultTypeInternal()
@@ -114,6 +116,7 @@ const uint32_t TableStruct_greptime_2fv1_2fprom_2eproto::offsets[] PROTOBUF_SECT
   ~0u,  // no _inlined_string_donated_
   PROTOBUF_FIELD_OFFSET(::greptime::v1::PromInstantQuery, _impl_.query_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::PromInstantQuery, _impl_.time_),
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::PromInstantQuery, _impl_.lookback_),
   ~0u,  // no _has_bits_
   PROTOBUF_FIELD_OFFSET(::greptime::v1::PromRangeQuery, _internal_metadata_),
   ~0u,  // no _extensions_
@@ -124,12 +127,13 @@ const uint32_t TableStruct_greptime_2fv1_2fprom_2eproto::offsets[] PROTOBUF_SECT
   PROTOBUF_FIELD_OFFSET(::greptime::v1::PromRangeQuery, _impl_.start_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::PromRangeQuery, _impl_.end_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::PromRangeQuery, _impl_.step_),
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::PromRangeQuery, _impl_.lookback_),
 };
 static const ::_pbi::MigrationSchema schemas[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) = {
   { 0, -1, -1, sizeof(::greptime::v1::PromqlRequest)},
   { 10, -1, -1, sizeof(::greptime::v1::PromqlResponse)},
   { 18, -1, -1, sizeof(::greptime::v1::PromInstantQuery)},
-  { 26, -1, -1, sizeof(::greptime::v1::PromRangeQuery)},
+  { 27, -1, -1, sizeof(::greptime::v1::PromRangeQuery)},
 };
 
 static const ::_pb::Message* const file_default_instances[] = {
@@ -148,21 +152,22 @@ const char descriptor_table_protodef_greptime_2fv1_2fprom_2eproto[] PROTOBUF_SEC
   "(\0132\033.greptime.v1.PromRangeQueryH\000B\010\n\006pro"
   "mql\"K\n\016PromqlResponse\022+\n\006header\030\001 \001(\0132\033."
   "greptime.v1.ResponseHeader\022\014\n\004body\030\002 \001(\014"
-  "\"/\n\020PromInstantQuery\022\r\n\005query\030\001 \001(\t\022\014\n\004t"
+  "\"A\n\020PromInstantQuery\022\r\n\005query\030\001 \001(\t\022\014\n\004t"
-  "ime\030\002 \001(\t\"I\n\016PromRangeQuery\022\r\n\005query\030\001 \001"
+  "ime\030\002 \001(\t\022\020\n\010lookback\030\003 \001(\t\"[\n\016PromRange"
-  "(\t\022\r\n\005start\030\002 \001(\t\022\013\n\003end\030\003 \001(\t\022\014\n\004step\030\004"
+  "Query\022\r\n\005query\030\001 \001(\t\022\r\n\005start\030\002 \001(\t\022\013\n\003e"
-  " \001(\t2V\n\021PrometheusGateway\022A\n\006Handle\022\032.gr"
+  "nd\030\003 \001(\t\022\014\n\004step\030\004 \001(\t\022\020\n\010lookback\030\005 \001(\t"
-  "eptime.v1.PromqlRequest\032\033.greptime.v1.Pr"
+  "2V\n\021PrometheusGateway\022A\n\006Handle\022\032.grepti"
-  "omqlResponseBS\n\016io.greptime.v1B\nPromethe"
+  "me.v1.PromqlRequest\032\033.greptime.v1.Promql"
-  "usZ5github.com/GreptimeTeam/greptime-pro"
+  "ResponseBS\n\016io.greptime.v1B\nPrometheusZ5"
-  "to/go/greptime/v1b\006proto3"
+  "github.com/GreptimeTeam/greptime-proto/g"
+  "o/greptime/v1b\006proto3"
   ;
 static const ::_pbi::DescriptorTable* const descriptor_table_greptime_2fv1_2fprom_2eproto_deps[1] = {
   &::descriptor_table_greptime_2fv1_2fcommon_2eproto,
 };
 static ::_pbi::once_flag descriptor_table_greptime_2fv1_2fprom_2eproto_once;
 const ::_pbi::DescriptorTable descriptor_table_greptime_2fv1_2fprom_2eproto = {
-    false, false, 625, descriptor_table_protodef_greptime_2fv1_2fprom_2eproto,
+    false, false, 661, descriptor_table_protodef_greptime_2fv1_2fprom_2eproto,
     "greptime/v1/prom.proto",
     &descriptor_table_greptime_2fv1_2fprom_2eproto_once, descriptor_table_greptime_2fv1_2fprom_2eproto_deps, 1, 4,
     schemas, file_default_instances, TableStruct_greptime_2fv1_2fprom_2eproto::offsets,
@@ -795,6 +800,7 @@ PromInstantQuery::PromInstantQuery(const PromInstantQuery& from)
   new (&_impl_) Impl_{
       decltype(_impl_.query_){}
     , decltype(_impl_.time_){}
+    , decltype(_impl_.lookback_){}
     , /*decltype(_impl_._cached_size_)*/{}};
 
   _internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
@@ -814,6 +820,14 @@ PromInstantQuery::PromInstantQuery(const PromInstantQuery& from)
     _this->_impl_.time_.Set(from._internal_time(), 
       _this->GetArenaForAllocation());
   }
+  _impl_.lookback_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.lookback_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (!from._internal_lookback().empty()) {
+    _this->_impl_.lookback_.Set(from._internal_lookback(), 
+      _this->GetArenaForAllocation());
+  }
   // @@protoc_insertion_point(copy_constructor:greptime.v1.PromInstantQuery)
 }
 
@@ -824,6 +838,7 @@ inline void PromInstantQuery::SharedCtor(
   new (&_impl_) Impl_{
       decltype(_impl_.query_){}
     , decltype(_impl_.time_){}
+    , decltype(_impl_.lookback_){}
     , /*decltype(_impl_._cached_size_)*/{}
   };
   _impl_.query_.InitDefault();
@@ -834,6 +849,10 @@ inline void PromInstantQuery::SharedCtor(
   #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
     _impl_.time_.Set("", GetArenaForAllocation());
   #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  _impl_.lookback_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.lookback_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
 }
 
 PromInstantQuery::~PromInstantQuery() {
@@ -849,6 +868,7 @@ inline void PromInstantQuery::SharedDtor() {
   GOOGLE_DCHECK(GetArenaForAllocation() == nullptr);
   _impl_.query_.Destroy();
   _impl_.time_.Destroy();
+  _impl_.lookback_.Destroy();
 }
 
 void PromInstantQuery::SetCachedSize(int size) const {
@@ -863,6 +883,7 @@ void PromInstantQuery::Clear() {
 
   _impl_.query_.ClearToEmpty();
   _impl_.time_.ClearToEmpty();
+  _impl_.lookback_.ClearToEmpty();
   _internal_metadata_.Clear<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>();
 }
 
@@ -892,6 +913,16 @@ const char* PromInstantQuery::_InternalParse(const char* ptr, ::_pbi::ParseConte
         } else
           goto handle_unusual;
         continue;
+      // string lookback = 3;
+      case 3:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 26)) {
+          auto str = _internal_mutable_lookback();
+          ptr = ::_pbi::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+          CHK_(::_pbi::VerifyUTF8(str, "greptime.v1.PromInstantQuery.lookback"));
+        } else
+          goto handle_unusual;
+        continue;
       default:
         goto handle_unusual;
     }  // switch
@@ -941,6 +972,16 @@ uint8_t* PromInstantQuery::_InternalSerialize(
         2, this->_internal_time(), target);
   }
 
+  // string lookback = 3;
+  if (!this->_internal_lookback().empty()) {
+    ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::VerifyUtf8String(
+      this->_internal_lookback().data(), static_cast<int>(this->_internal_lookback().length()),
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::SERIALIZE,
+      "greptime.v1.PromInstantQuery.lookback");
+    target = stream->WriteStringMaybeAliased(
+        3, this->_internal_lookback(), 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);
@@ -971,6 +1012,13 @@ size_t PromInstantQuery::ByteSizeLong() const {
         this->_internal_time());
   }
 
+  // string lookback = 3;
+  if (!this->_internal_lookback().empty()) {
+    total_size += 1 +
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::StringSize(
+        this->_internal_lookback());
+  }
+
   return MaybeComputeUnknownFieldsSize(total_size, &_impl_._cached_size_);
 }
 
@@ -995,6 +1043,9 @@ void PromInstantQuery::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const
   if (!from._internal_time().empty()) {
     _this->_internal_set_time(from._internal_time());
   }
+  if (!from._internal_lookback().empty()) {
+    _this->_internal_set_lookback(from._internal_lookback());
+  }
   _this->_internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
 }
 
@@ -1022,6 +1073,10 @@ void PromInstantQuery::InternalSwap(PromInstantQuery* other) {
       &_impl_.time_, lhs_arena,
       &other->_impl_.time_, rhs_arena
   );
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &_impl_.lookback_, lhs_arena,
+      &other->_impl_.lookback_, rhs_arena
+  );
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata PromInstantQuery::GetMetadata() const {
@@ -1050,6 +1105,7 @@ PromRangeQuery::PromRangeQuery(const PromRangeQuery& from)
     , decltype(_impl_.start_){}
     , decltype(_impl_.end_){}
     , decltype(_impl_.step_){}
+    , decltype(_impl_.lookback_){}
     , /*decltype(_impl_._cached_size_)*/{}};
 
   _internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
@@ -1085,6 +1141,14 @@ PromRangeQuery::PromRangeQuery(const PromRangeQuery& from)
     _this->_impl_.step_.Set(from._internal_step(), 
       _this->GetArenaForAllocation());
   }
+  _impl_.lookback_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.lookback_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (!from._internal_lookback().empty()) {
+    _this->_impl_.lookback_.Set(from._internal_lookback(), 
+      _this->GetArenaForAllocation());
+  }
   // @@protoc_insertion_point(copy_constructor:greptime.v1.PromRangeQuery)
 }
 
@@ -1097,6 +1161,7 @@ inline void PromRangeQuery::SharedCtor(
     , decltype(_impl_.start_){}
     , decltype(_impl_.end_){}
     , decltype(_impl_.step_){}
+    , decltype(_impl_.lookback_){}
     , /*decltype(_impl_._cached_size_)*/{}
   };
   _impl_.query_.InitDefault();
@@ -1115,6 +1180,10 @@ inline void PromRangeQuery::SharedCtor(
   #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
     _impl_.step_.Set("", GetArenaForAllocation());
   #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  _impl_.lookback_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.lookback_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
 }
 
 PromRangeQuery::~PromRangeQuery() {
@@ -1132,6 +1201,7 @@ inline void PromRangeQuery::SharedDtor() {
   _impl_.start_.Destroy();
   _impl_.end_.Destroy();
   _impl_.step_.Destroy();
+  _impl_.lookback_.Destroy();
 }
 
 void PromRangeQuery::SetCachedSize(int size) const {
@@ -1148,6 +1218,7 @@ void PromRangeQuery::Clear() {
   _impl_.start_.ClearToEmpty();
   _impl_.end_.ClearToEmpty();
   _impl_.step_.ClearToEmpty();
+  _impl_.lookback_.ClearToEmpty();
   _internal_metadata_.Clear<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>();
 }
 
@@ -1197,6 +1268,16 @@ const char* PromRangeQuery::_InternalParse(const char* ptr, ::_pbi::ParseContext
         } else
           goto handle_unusual;
         continue;
+      // string lookback = 5;
+      case 5:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 42)) {
+          auto str = _internal_mutable_lookback();
+          ptr = ::_pbi::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+          CHK_(::_pbi::VerifyUTF8(str, "greptime.v1.PromRangeQuery.lookback"));
+        } else
+          goto handle_unusual;
+        continue;
       default:
         goto handle_unusual;
     }  // switch
@@ -1266,6 +1347,16 @@ uint8_t* PromRangeQuery::_InternalSerialize(
         4, this->_internal_step(), target);
   }
 
+  // string lookback = 5;
+  if (!this->_internal_lookback().empty()) {
+    ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::VerifyUtf8String(
+      this->_internal_lookback().data(), static_cast<int>(this->_internal_lookback().length()),
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::SERIALIZE,
+      "greptime.v1.PromRangeQuery.lookback");
+    target = stream->WriteStringMaybeAliased(
+        5, this->_internal_lookback(), 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);
@@ -1310,6 +1401,13 @@ size_t PromRangeQuery::ByteSizeLong() const {
         this->_internal_step());
   }
 
+  // string lookback = 5;
+  if (!this->_internal_lookback().empty()) {
+    total_size += 1 +
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::StringSize(
+        this->_internal_lookback());
+  }
+
   return MaybeComputeUnknownFieldsSize(total_size, &_impl_._cached_size_);
 }
 
@@ -1340,6 +1438,9 @@ void PromRangeQuery::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const :
   if (!from._internal_step().empty()) {
     _this->_internal_set_step(from._internal_step());
   }
+  if (!from._internal_lookback().empty()) {
+    _this->_internal_set_lookback(from._internal_lookback());
+  }
   _this->_internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
 }
 
@@ -1375,6 +1476,10 @@ void PromRangeQuery::InternalSwap(PromRangeQuery* other) {
       &_impl_.step_, lhs_arena,
       &other->_impl_.step_, rhs_arena
   );
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &_impl_.lookback_, lhs_arena,
+      &other->_impl_.lookback_, rhs_arena
+  );
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata PromRangeQuery::GetMetadata() const {

c++/greptime/v1/prom.pb.h

@@ -584,6 +584,7 @@ class PromInstantQuery final :
   enum : int {
     kQueryFieldNumber = 1,
     kTimeFieldNumber = 2,
+    kLookbackFieldNumber = 3,
   };
   // string query = 1;
   void clear_query();
@@ -613,6 +614,20 @@ class PromInstantQuery final :
   std::string* _internal_mutable_time();
   public:
 
+  // string lookback = 3;
+  void clear_lookback();
+  const std::string& lookback() const;
+  template <typename ArgT0 = const std::string&, typename... ArgT>
+  void set_lookback(ArgT0&& arg0, ArgT... args);
+  std::string* mutable_lookback();
+  PROTOBUF_NODISCARD std::string* release_lookback();
+  void set_allocated_lookback(std::string* lookback);
+  private:
+  const std::string& _internal_lookback() const;
+  inline PROTOBUF_ALWAYS_INLINE void _internal_set_lookback(const std::string& value);
+  std::string* _internal_mutable_lookback();
+  public:
+
   // @@protoc_insertion_point(class_scope:greptime.v1.PromInstantQuery)
  private:
   class _Internal;
@@ -623,6 +638,7 @@ class PromInstantQuery final :
   struct Impl_ {
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr query_;
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr time_;
+    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr lookback_;
     mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
   };
   union { Impl_ _impl_; };
@@ -755,6 +771,7 @@ class PromRangeQuery final :
     kStartFieldNumber = 2,
     kEndFieldNumber = 3,
     kStepFieldNumber = 4,
+    kLookbackFieldNumber = 5,
   };
   // string query = 1;
   void clear_query();
@@ -812,6 +829,20 @@ class PromRangeQuery final :
   std::string* _internal_mutable_step();
   public:
 
+  // string lookback = 5;
+  void clear_lookback();
+  const std::string& lookback() const;
+  template <typename ArgT0 = const std::string&, typename... ArgT>
+  void set_lookback(ArgT0&& arg0, ArgT... args);
+  std::string* mutable_lookback();
+  PROTOBUF_NODISCARD std::string* release_lookback();
+  void set_allocated_lookback(std::string* lookback);
+  private:
+  const std::string& _internal_lookback() const;
+  inline PROTOBUF_ALWAYS_INLINE void _internal_set_lookback(const std::string& value);
+  std::string* _internal_mutable_lookback();
+  public:
+
   // @@protoc_insertion_point(class_scope:greptime.v1.PromRangeQuery)
  private:
   class _Internal;
@@ -824,6 +855,7 @@ class PromRangeQuery final :
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr start_;
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr end_;
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr step_;
+    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr lookback_;
     mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
   };
   union { Impl_ _impl_; };
@@ -1325,6 +1357,56 @@ inline void PromInstantQuery::set_allocated_time(std::string* time) {
   // @@protoc_insertion_point(field_set_allocated:greptime.v1.PromInstantQuery.time)
 }
 
+// string lookback = 3;
+inline void PromInstantQuery::clear_lookback() {
+  _impl_.lookback_.ClearToEmpty();
+}
+inline const std::string& PromInstantQuery::lookback() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.PromInstantQuery.lookback)
+  return _internal_lookback();
+}
+template <typename ArgT0, typename... ArgT>
+inline PROTOBUF_ALWAYS_INLINE
+void PromInstantQuery::set_lookback(ArgT0&& arg0, ArgT... args) {
+ 
+ _impl_.lookback_.Set(static_cast<ArgT0 &&>(arg0), args..., GetArenaForAllocation());
+  // @@protoc_insertion_point(field_set:greptime.v1.PromInstantQuery.lookback)
+}
+inline std::string* PromInstantQuery::mutable_lookback() {
+  std::string* _s = _internal_mutable_lookback();
+  // @@protoc_insertion_point(field_mutable:greptime.v1.PromInstantQuery.lookback)
+  return _s;
+}
+inline const std::string& PromInstantQuery::_internal_lookback() const {
+  return _impl_.lookback_.Get();
+}
+inline void PromInstantQuery::_internal_set_lookback(const std::string& value) {
+  
+  _impl_.lookback_.Set(value, GetArenaForAllocation());
+}
+inline std::string* PromInstantQuery::_internal_mutable_lookback() {
+  
+  return _impl_.lookback_.Mutable(GetArenaForAllocation());
+}
+inline std::string* PromInstantQuery::release_lookback() {
+  // @@protoc_insertion_point(field_release:greptime.v1.PromInstantQuery.lookback)
+  return _impl_.lookback_.Release();
+}
+inline void PromInstantQuery::set_allocated_lookback(std::string* lookback) {
+  if (lookback != nullptr) {
+    
+  } else {
+    
+  }
+  _impl_.lookback_.SetAllocated(lookback, GetArenaForAllocation());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (_impl_.lookback_.IsDefault()) {
+    _impl_.lookback_.Set("", GetArenaForAllocation());
+  }
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  // @@protoc_insertion_point(field_set_allocated:greptime.v1.PromInstantQuery.lookback)
+}
+
 // -------------------------------------------------------------------
 
 // PromRangeQuery
@@ -1529,6 +1611,56 @@ inline void PromRangeQuery::set_allocated_step(std::string* step) {
   // @@protoc_insertion_point(field_set_allocated:greptime.v1.PromRangeQuery.step)
 }
 
+// string lookback = 5;
+inline void PromRangeQuery::clear_lookback() {
+  _impl_.lookback_.ClearToEmpty();
+}
+inline const std::string& PromRangeQuery::lookback() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.PromRangeQuery.lookback)
+  return _internal_lookback();
+}
+template <typename ArgT0, typename... ArgT>
+inline PROTOBUF_ALWAYS_INLINE
+void PromRangeQuery::set_lookback(ArgT0&& arg0, ArgT... args) {
+ 
+ _impl_.lookback_.Set(static_cast<ArgT0 &&>(arg0), args..., GetArenaForAllocation());
+  // @@protoc_insertion_point(field_set:greptime.v1.PromRangeQuery.lookback)
+}
+inline std::string* PromRangeQuery::mutable_lookback() {
+  std::string* _s = _internal_mutable_lookback();
+  // @@protoc_insertion_point(field_mutable:greptime.v1.PromRangeQuery.lookback)
+  return _s;
+}
+inline const std::string& PromRangeQuery::_internal_lookback() const {
+  return _impl_.lookback_.Get();
+}
+inline void PromRangeQuery::_internal_set_lookback(const std::string& value) {
+  
+  _impl_.lookback_.Set(value, GetArenaForAllocation());
+}
+inline std::string* PromRangeQuery::_internal_mutable_lookback() {
+  
+  return _impl_.lookback_.Mutable(GetArenaForAllocation());
+}
+inline std::string* PromRangeQuery::release_lookback() {
+  // @@protoc_insertion_point(field_release:greptime.v1.PromRangeQuery.lookback)
+  return _impl_.lookback_.Release();
+}
+inline void PromRangeQuery::set_allocated_lookback(std::string* lookback) {
+  if (lookback != nullptr) {
+    
+  } else {
+    
+  }
+  _impl_.lookback_.SetAllocated(lookback, GetArenaForAllocation());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (_impl_.lookback_.IsDefault()) {
+    _impl_.lookback_.Set("", GetArenaForAllocation());
+  }
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  // @@protoc_insertion_point(field_set_allocated:greptime.v1.PromRangeQuery.lookback)
+}
+
 #ifdef __GNUC__
   #pragma GCC diagnostic pop
 #endif  // __GNUC__

go/greptime/v1/prom.pb.go

@@ -185,6 +185,7 @@ type PromInstantQuery struct {
 
 	Query    string `protobuf:"bytes,1,opt,name=query,proto3" json:"query,omitempty"`
 	Time     string `protobuf:"bytes,2,opt,name=time,proto3" json:"time,omitempty"`
+	Lookback string `protobuf:"bytes,3,opt,name=lookback,proto3" json:"lookback,omitempty"`
 }
 
 func (x *PromInstantQuery) Reset() {
@@ -233,6 +234,13 @@ func (x *PromInstantQuery) GetTime() string {
 	return ""
 }
 
+func (x *PromInstantQuery) GetLookback() string {
+	if x != nil {
+		return x.Lookback
+	}
+	return ""
+}
+
 type PromRangeQuery struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -242,6 +250,7 @@ type PromRangeQuery struct {
 	Start    string `protobuf:"bytes,2,opt,name=start,proto3" json:"start,omitempty"`
 	End      string `protobuf:"bytes,3,opt,name=end,proto3" json:"end,omitempty"`
 	Step     string `protobuf:"bytes,4,opt,name=step,proto3" json:"step,omitempty"`
+	Lookback string `protobuf:"bytes,5,opt,name=lookback,proto3" json:"lookback,omitempty"`
 }
 
 func (x *PromRangeQuery) Reset() {
@@ -304,6 +313,13 @@ func (x *PromRangeQuery) GetStep() string {
 	return ""
 }
 
+func (x *PromRangeQuery) GetLookback() string {
+	if x != nil {
+		return x.Lookback
+	}
+	return ""
+}
+
 var File_greptime_v1_prom_proto protoreflect.FileDescriptor
 
 var file_greptime_v1_prom_proto_rawDesc = []byte{
@@ -330,28 +346,31 @@ var file_greptime_v1_prom_proto_rawDesc = []byte{
 	0x6d, 0x65, 0x2e, 0x76, 0x31, 0x2e, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x48, 0x65,
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+	0x74, 0x69, 0x6d, 0x65, 0x2f, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

java/src/main/java/io/greptime/v1/Prometheus.java

@@ -1912,6 +1912,18 @@ public final class Prometheus {
      */
     com.google.protobuf.ByteString
         getTimeBytes();
+
+    /**
+     * <code>string lookback = 3;</code>
+     * @return The lookback.
+     */
+    java.lang.String getLookback();
+    /**
+     * <code>string lookback = 3;</code>
+     * @return The bytes for lookback.
+     */
+    com.google.protobuf.ByteString
+        getLookbackBytes();
   }
   /**
    * Protobuf type {@code greptime.v1.PromInstantQuery}
@@ -1928,6 +1940,7 @@ public final class Prometheus {
     private PromInstantQuery() {
       query_ = "";
       time_ = "";
+      lookback_ = "";
     }
 
     @java.lang.Override
@@ -1972,6 +1985,12 @@ public final class Prometheus {
               time_ = s;
               break;
             }
+            case 26: {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              lookback_ = s;
+              break;
+            }
             default: {
               if (!parseUnknownField(
                   input, unknownFields, extensionRegistry, tag)) {
@@ -2082,6 +2101,44 @@ public final class Prometheus {
       }
     }
 
+    public static final int LOOKBACK_FIELD_NUMBER = 3;
+    private volatile java.lang.Object lookback_;
+    /**
+     * <code>string lookback = 3;</code>
+     * @return The lookback.
+     */
+    @java.lang.Override
+    public java.lang.String getLookback() {
+      java.lang.Object ref = lookback_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        lookback_ = s;
+        return s;
+      }
+    }
+    /**
+     * <code>string lookback = 3;</code>
+     * @return The bytes for lookback.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getLookbackBytes() {
+      java.lang.Object ref = lookback_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        lookback_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
     private byte memoizedIsInitialized = -1;
     @java.lang.Override
     public final boolean isInitialized() {
@@ -2102,6 +2159,9 @@ public final class Prometheus {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(time_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, time_);
       }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(lookback_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 3, lookback_);
+      }
       unknownFields.writeTo(output);
     }
 
@@ -2117,6 +2177,9 @@ public final class Prometheus {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(time_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, time_);
       }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(lookback_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, lookback_);
+      }
       size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
@@ -2136,6 +2199,8 @@ public final class Prometheus {
           .equals(other.getQuery())) return false;
       if (!getTime()
           .equals(other.getTime())) return false;
+      if (!getLookback()
+          .equals(other.getLookback())) return false;
       if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
@@ -2151,6 +2216,8 @@ public final class Prometheus {
       hash = (53 * hash) + getQuery().hashCode();
       hash = (37 * hash) + TIME_FIELD_NUMBER;
       hash = (53 * hash) + getTime().hashCode();
+      hash = (37 * hash) + LOOKBACK_FIELD_NUMBER;
+      hash = (53 * hash) + getLookback().hashCode();
       hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
@@ -2288,6 +2355,8 @@ public final class Prometheus {
 
         time_ = "";
 
+        lookback_ = "";
+
         return this;
       }
 
@@ -2316,6 +2385,7 @@ public final class Prometheus {
         io.greptime.v1.Prometheus.PromInstantQuery result = new io.greptime.v1.Prometheus.PromInstantQuery(this);
         result.query_ = query_;
         result.time_ = time_;
+        result.lookback_ = lookback_;
         onBuilt();
         return result;
       }
@@ -2372,6 +2442,10 @@ public final class Prometheus {
           time_ = other.time_;
           onChanged();
         }
+        if (!other.getLookback().isEmpty()) {
+          lookback_ = other.lookback_;
+          onChanged();
+        }
         this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
@@ -2552,6 +2626,82 @@ public final class Prometheus {
         onChanged();
         return this;
       }
+
+      private java.lang.Object lookback_ = "";
+      /**
+       * <code>string lookback = 3;</code>
+       * @return The lookback.
+       */
+      public java.lang.String getLookback() {
+        java.lang.Object ref = lookback_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs =
+              (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          lookback_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       * <code>string lookback = 3;</code>
+       * @return The bytes for lookback.
+       */
+      public com.google.protobuf.ByteString
+          getLookbackBytes() {
+        java.lang.Object ref = lookback_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          lookback_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * <code>string lookback = 3;</code>
+       * @param value The lookback to set.
+       * @return This builder for chaining.
+       */
+      public Builder setLookback(
+          java.lang.String value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  
+        lookback_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>string lookback = 3;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearLookback() {
+        
+        lookback_ = getDefaultInstance().getLookback();
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>string lookback = 3;</code>
+       * @param value The bytes for lookback to set.
+       * @return This builder for chaining.
+       */
+      public Builder setLookbackBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+        
+        lookback_ = value;
+        onChanged();
+        return this;
+      }
       @java.lang.Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -2656,6 +2806,18 @@ public final class Prometheus {
      */
     com.google.protobuf.ByteString
         getStepBytes();
+
+    /**
+     * <code>string lookback = 5;</code>
+     * @return The lookback.
+     */
+    java.lang.String getLookback();
+    /**
+     * <code>string lookback = 5;</code>
+     * @return The bytes for lookback.
+     */
+    com.google.protobuf.ByteString
+        getLookbackBytes();
   }
   /**
    * Protobuf type {@code greptime.v1.PromRangeQuery}
@@ -2674,6 +2836,7 @@ public final class Prometheus {
       start_ = "";
       end_ = "";
       step_ = "";
+      lookback_ = "";
     }
 
     @java.lang.Override
@@ -2730,6 +2893,12 @@ public final class Prometheus {
               step_ = s;
               break;
             }
+            case 42: {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              lookback_ = s;
+              break;
+            }
             default: {
               if (!parseUnknownField(
                   input, unknownFields, extensionRegistry, tag)) {
@@ -2916,6 +3085,44 @@ public final class Prometheus {
       }
     }
 
+    public static final int LOOKBACK_FIELD_NUMBER = 5;
+    private volatile java.lang.Object lookback_;
+    /**
+     * <code>string lookback = 5;</code>
+     * @return The lookback.
+     */
+    @java.lang.Override
+    public java.lang.String getLookback() {
+      java.lang.Object ref = lookback_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        lookback_ = s;
+        return s;
+      }
+    }
+    /**
+     * <code>string lookback = 5;</code>
+     * @return The bytes for lookback.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getLookbackBytes() {
+      java.lang.Object ref = lookback_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        lookback_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
     private byte memoizedIsInitialized = -1;
     @java.lang.Override
     public final boolean isInitialized() {
@@ -2942,6 +3149,9 @@ public final class Prometheus {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(step_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 4, step_);
       }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(lookback_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 5, lookback_);
+      }
       unknownFields.writeTo(output);
     }
 
@@ -2963,6 +3173,9 @@ public final class Prometheus {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(step_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, step_);
       }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(lookback_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, lookback_);
+      }
       size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
@@ -2986,6 +3199,8 @@ public final class Prometheus {
           .equals(other.getEnd())) return false;
       if (!getStep()
           .equals(other.getStep())) return false;
+      if (!getLookback()
+          .equals(other.getLookback())) return false;
       if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
@@ -3005,6 +3220,8 @@ public final class Prometheus {
       hash = (53 * hash) + getEnd().hashCode();
       hash = (37 * hash) + STEP_FIELD_NUMBER;
       hash = (53 * hash) + getStep().hashCode();
+      hash = (37 * hash) + LOOKBACK_FIELD_NUMBER;
+      hash = (53 * hash) + getLookback().hashCode();
       hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
@@ -3146,6 +3363,8 @@ public final class Prometheus {
 
         step_ = "";
 
+        lookback_ = "";
+
         return this;
       }
 
@@ -3176,6 +3395,7 @@ public final class Prometheus {
         result.start_ = start_;
         result.end_ = end_;
         result.step_ = step_;
+        result.lookback_ = lookback_;
         onBuilt();
         return result;
       }
@@ -3240,6 +3460,10 @@ public final class Prometheus {
           step_ = other.step_;
           onChanged();
         }
+        if (!other.getLookback().isEmpty()) {
+          lookback_ = other.lookback_;
+          onChanged();
+        }
         this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
@@ -3572,6 +3796,82 @@ public final class Prometheus {
         onChanged();
         return this;
       }
+
+      private java.lang.Object lookback_ = "";
+      /**
+       * <code>string lookback = 5;</code>
+       * @return The lookback.
+       */
+      public java.lang.String getLookback() {
+        java.lang.Object ref = lookback_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs =
+              (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          lookback_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       * <code>string lookback = 5;</code>
+       * @return The bytes for lookback.
+       */
+      public com.google.protobuf.ByteString
+          getLookbackBytes() {
+        java.lang.Object ref = lookback_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          lookback_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * <code>string lookback = 5;</code>
+       * @param value The lookback to set.
+       * @return This builder for chaining.
+       */
+      public Builder setLookback(
+          java.lang.String value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  
+        lookback_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>string lookback = 5;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearLookback() {
+        
+        lookback_ = getDefaultInstance().getLookback();
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>string lookback = 5;</code>
+       * @param value The bytes for lookback to set.
+       * @return This builder for chaining.
+       */
+      public Builder setLookbackBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+        
+        lookback_ = value;
+        onChanged();
+        return this;
+      }
       @java.lang.Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -3662,14 +3962,15 @@ public final class Prometheus {
       "(\0132\033.greptime.v1.PromRangeQueryH\000B\010\n\006pro" +
       "mql\"K\n\016PromqlResponse\022+\n\006header\030\001 \001(\0132\033." +
       "greptime.v1.ResponseHeader\022\014\n\004body\030\002 \001(\014" +
-      "\"/\n\020PromInstantQuery\022\r\n\005query\030\001 \001(\t\022\014\n\004t" +
+      "\"A\n\020PromInstantQuery\022\r\n\005query\030\001 \001(\t\022\014\n\004t" +
-      "ime\030\002 \001(\t\"I\n\016PromRangeQuery\022\r\n\005query\030\001 \001" +
+      "ime\030\002 \001(\t\022\020\n\010lookback\030\003 \001(\t\"[\n\016PromRange" +
-      "(\t\022\r\n\005start\030\002 \001(\t\022\013\n\003end\030\003 \001(\t\022\014\n\004step\030\004" +
+      "Query\022\r\n\005query\030\001 \001(\t\022\r\n\005start\030\002 \001(\t\022\013\n\003e" +
-      " \001(\t2V\n\021PrometheusGateway\022A\n\006Handle\022\032.gr" +
+      "nd\030\003 \001(\t\022\014\n\004step\030\004 \001(\t\022\020\n\010lookback\030\005 \001(\t" +
-      "eptime.v1.PromqlRequest\032\033.greptime.v1.Pr" +
+      "2V\n\021PrometheusGateway\022A\n\006Handle\022\032.grepti" +
-      "omqlResponseBS\n\016io.greptime.v1B\nPromethe" +
+      "me.v1.PromqlRequest\032\033.greptime.v1.Promql" +
-      "usZ5github.com/GreptimeTeam/greptime-pro" +
+      "ResponseBS\n\016io.greptime.v1B\nPrometheusZ5" +
-      "to/go/greptime/v1b\006proto3"
+      "github.com/GreptimeTeam/greptime-proto/g" +
+      "o/greptime/v1b\006proto3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
@@ -3693,13 +3994,13 @@ public final class Prometheus {
     internal_static_greptime_v1_PromInstantQuery_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_PromInstantQuery_descriptor,
-        new java.lang.String[] { "Query", "Time", });
+        new java.lang.String[] { "Query", "Time", "Lookback", });
     internal_static_greptime_v1_PromRangeQuery_descriptor =
       getDescriptor().getMessageTypes().get(3);
     internal_static_greptime_v1_PromRangeQuery_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_PromRangeQuery_descriptor,
-        new java.lang.String[] { "Query", "Start", "End", "Step", });
+        new java.lang.String[] { "Query", "Start", "End", "Step", "Lookback", });
     io.greptime.v1.Common.getDescriptor();
   }
 

proto/greptime/v1/prom.proto

@@ -43,6 +43,7 @@ message PromqlResponse {
 message PromInstantQuery {
   string query = 1;
   string time = 2;
+  string lookback = 3;
 }
 
 message PromRangeQuery {
@@ -50,4 +51,5 @@ message PromRangeQuery {
   string start = 2;
   string end = 3;
   string step = 4;
+  string lookback = 5;
 }