diff --git a/c++/greptime/v1/common.pb.cc b/c++/greptime/v1/common.pb.cc
index 8144eae3..89a5da9b 100644
--- a/c++/greptime/v1/common.pb.cc
+++ b/c++/greptime/v1/common.pb.cc
@@ -39,6 +39,7 @@ PROTOBUF_CONSTEXPR RequestHeader::RequestHeader(
   , /*decltype(_impl_.catalog_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.schema_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.dbname_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
+  , /*decltype(_impl_.timezone_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
   , /*decltype(_impl_.authorization_)*/nullptr
   , /*decltype(_impl_._cached_size_)*/{}} {}
 struct RequestHeaderDefaultTypeInternal {
@@ -229,6 +230,7 @@ const uint32_t TableStruct_greptime_2fv1_2fcommon_2eproto::offsets[] PROTOBUF_SE
   PROTOBUF_FIELD_OFFSET(::greptime::v1::RequestHeader, _impl_.authorization_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::RequestHeader, _impl_.dbname_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::RequestHeader, _impl_.tracing_context_),
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::RequestHeader, _impl_.timezone_),
   ~0u,  // no _has_bits_
   PROTOBUF_FIELD_OFFSET(::greptime::v1::ResponseHeader, _internal_metadata_),
   ~0u,  // no _extensions_
@@ -319,17 +321,17 @@ const uint32_t TableStruct_greptime_2fv1_2fcommon_2eproto::offsets[] PROTOBUF_SE
 static const ::_pbi::MigrationSchema schemas[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) = {
   { 0, 8, -1, sizeof(::greptime::v1::RequestHeader_TracingContextEntry_DoNotUse)},
   { 10, -1, -1, sizeof(::greptime::v1::RequestHeader)},
-  { 21, -1, -1, sizeof(::greptime::v1::ResponseHeader)},
-  { 28, -1, -1, sizeof(::greptime::v1::Status)},
-  { 36, -1, -1, sizeof(::greptime::v1::AuthHeader)},
-  { 45, -1, -1, sizeof(::greptime::v1::Basic)},
-  { 53, -1, -1, sizeof(::greptime::v1::Token)},
-  { 60, -1, -1, sizeof(::greptime::v1::AffectedRows)},
-  { 67, -1, -1, sizeof(::greptime::v1::FlightMetadata)},
-  { 74, -1, -1, sizeof(::greptime::v1::IntervalMonthDayNano)},
-  { 83, -1, -1, sizeof(::greptime::v1::Decimal128)},
-  { 91, -1, -1, sizeof(::greptime::v1::ColumnDataTypeExtension)},
-  { 99, -1, -1, sizeof(::greptime::v1::DecimalTypeExtension)},
+  { 22, -1, -1, sizeof(::greptime::v1::ResponseHeader)},
+  { 29, -1, -1, sizeof(::greptime::v1::Status)},
+  { 37, -1, -1, sizeof(::greptime::v1::AuthHeader)},
+  { 46, -1, -1, sizeof(::greptime::v1::Basic)},
+  { 54, -1, -1, sizeof(::greptime::v1::Token)},
+  { 61, -1, -1, sizeof(::greptime::v1::AffectedRows)},
+  { 68, -1, -1, sizeof(::greptime::v1::FlightMetadata)},
+  { 75, -1, -1, sizeof(::greptime::v1::IntervalMonthDayNano)},
+  { 84, -1, -1, sizeof(::greptime::v1::Decimal128)},
+  { 92, -1, -1, sizeof(::greptime::v1::ColumnDataTypeExtension)},
+  { 100, -1, -1, sizeof(::greptime::v1::DecimalTypeExtension)},
 };
 
 static const ::_pb::Message* const file_default_instances[] = {
@@ -350,50 +352,51 @@ static const ::_pb::Message* const file_default_instances[] = {
 
 const char descriptor_table_protodef_greptime_2fv1_2fcommon_2eproto[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) =
   "\n\030greptime/v1/common.proto\022\013greptime.v1\""
-  "\360\001\n\rRequestHeader\022\017\n\007catalog\030\001 \001(\t\022\016\n\006sc"
+  "\202\002\n\rRequestHeader\022\017\n\007catalog\030\001 \001(\t\022\016\n\006sc"
   "hema\030\002 \001(\t\022.\n\rauthorization\030\003 \001(\0132\027.grep"
   "time.v1.AuthHeader\022\016\n\006dbname\030\004 \001(\t\022G\n\017tr"
   "acing_context\030\005 \003(\0132..greptime.v1.Reques"
-  "tHeader.TracingContextEntry\0325\n\023TracingCo"
-  "ntextEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\002"
-  "8\001\"5\n\016ResponseHeader\022#\n\006status\030\001 \001(\0132\023.g"
-  "reptime.v1.Status\".\n\006Status\022\023\n\013status_co"
-  "de\030\001 \001(\r\022\017\n\007err_msg\030\002 \001(\t\"e\n\nAuthHeader\022"
-  "#\n\005basic\030\001 \001(\0132\022.greptime.v1.BasicH\000\022#\n\005"
-  "token\030\002 \001(\0132\022.greptime.v1.TokenH\000B\r\n\013aut"
-  "h_scheme\"+\n\005Basic\022\020\n\010username\030\001 \001(\t\022\020\n\010p"
-  "assword\030\002 \001(\t\"\026\n\005Token\022\r\n\005token\030\001 \001(\t\"\035\n"
-  "\014AffectedRows\022\r\n\005value\030\001 \001(\r\"B\n\016FlightMe"
-  "tadata\0220\n\raffected_rows\030\001 \001(\0132\031.greptime"
-  ".v1.AffectedRows\"I\n\024IntervalMonthDayNano"
-  "\022\016\n\006months\030\001 \001(\005\022\014\n\004days\030\002 \001(\005\022\023\n\013nanose"
-  "conds\030\003 \001(\003\"$\n\nDecimal128\022\n\n\002hi\030\001 \001(\003\022\n\n"
-  "\002lo\030\002 \001(\003\"`\n\027ColumnDataTypeExtension\0229\n\014"
-  "decimal_type\030\001 \001(\0132!.greptime.v1.Decimal"
-  "TypeExtensionH\000B\n\n\010type_ext\"8\n\024DecimalTy"
-  "peExtension\022\021\n\tprecision\030\001 \001(\005\022\r\n\005scale\030"
-  "\002 \001(\005*1\n\014SemanticType\022\007\n\003TAG\020\000\022\t\n\005FIELD\020"
-  "\001\022\r\n\tTIMESTAMP\020\002*\270\004\n\016ColumnDataType\022\013\n\007B"
-  "OOLEAN\020\000\022\010\n\004INT8\020\001\022\t\n\005INT16\020\002\022\t\n\005INT32\020\003"
-  "\022\t\n\005INT64\020\004\022\t\n\005UINT8\020\005\022\n\n\006UINT16\020\006\022\n\n\006UI"
-  "NT32\020\007\022\n\n\006UINT64\020\010\022\013\n\007FLOAT32\020\t\022\013\n\007FLOAT"
-  "64\020\n\022\n\n\006BINARY\020\013\022\n\n\006STRING\020\014\022\010\n\004DATE\020\r\022\014"
-  "\n\010DATETIME\020\016\022\024\n\020TIMESTAMP_SECOND\020\017\022\031\n\025TI"
-  "MESTAMP_MILLISECOND\020\020\022\031\n\025TIMESTAMP_MICRO"
-  "SECOND\020\021\022\030\n\024TIMESTAMP_NANOSECOND\020\022\022\017\n\013TI"
-  "ME_SECOND\020\023\022\024\n\020TIME_MILLISECOND\020\024\022\024\n\020TIM"
-  "E_MICROSECOND\020\025\022\023\n\017TIME_NANOSECOND\020\026\022\027\n\023"
-  "INTERVAL_YEAR_MONTH\020\027\022\025\n\021INTERVAL_DAY_TI"
-  "ME\020\030\022\033\n\027INTERVAL_MONTH_DAY_NANO\020\031\022\023\n\017DUR"
-  "ATION_SECOND\020\032\022\030\n\024DURATION_MILLISECOND\020\033"
-  "\022\030\n\024DURATION_MICROSECOND\020\034\022\027\n\023DURATION_N"
-  "ANOSECOND\020\035\022\016\n\nDECIMAL128\020\036BO\n\016io.grepti"
-  "me.v1B\006CommonZ5github.com/GreptimeTeam/g"
-  "reptime-proto/go/greptime/v1b\006proto3"
+  "tHeader.TracingContextEntry\022\020\n\010timezone\030"
+  "\006 \001(\t\0325\n\023TracingContextEntry\022\013\n\003key\030\001 \001("
+  "\t\022\r\n\005value\030\002 \001(\t:\0028\001\"5\n\016ResponseHeader\022#"
+  "\n\006status\030\001 \001(\0132\023.greptime.v1.Status\".\n\006S"
+  "tatus\022\023\n\013status_code\030\001 \001(\r\022\017\n\007err_msg\030\002 "
+  "\001(\t\"e\n\nAuthHeader\022#\n\005basic\030\001 \001(\0132\022.grept"
+  "ime.v1.BasicH\000\022#\n\005token\030\002 \001(\0132\022.greptime"
+  ".v1.TokenH\000B\r\n\013auth_scheme\"+\n\005Basic\022\020\n\010u"
+  "sername\030\001 \001(\t\022\020\n\010password\030\002 \001(\t\"\026\n\005Token"
+  "\022\r\n\005token\030\001 \001(\t\"\035\n\014AffectedRows\022\r\n\005value"
+  "\030\001 \001(\r\"B\n\016FlightMetadata\0220\n\raffected_row"
+  "s\030\001 \001(\0132\031.greptime.v1.AffectedRows\"I\n\024In"
+  "tervalMonthDayNano\022\016\n\006months\030\001 \001(\005\022\014\n\004da"
+  "ys\030\002 \001(\005\022\023\n\013nanoseconds\030\003 \001(\003\"$\n\nDecimal"
+  "128\022\n\n\002hi\030\001 \001(\003\022\n\n\002lo\030\002 \001(\003\"`\n\027ColumnDat"
+  "aTypeExtension\0229\n\014decimal_type\030\001 \001(\0132!.g"
+  "reptime.v1.DecimalTypeExtensionH\000B\n\n\010typ"
+  "e_ext\"8\n\024DecimalTypeExtension\022\021\n\tprecisi"
+  "on\030\001 \001(\005\022\r\n\005scale\030\002 \001(\005*1\n\014SemanticType\022"
+  "\007\n\003TAG\020\000\022\t\n\005FIELD\020\001\022\r\n\tTIMESTAMP\020\002*\270\004\n\016C"
+  "olumnDataType\022\013\n\007BOOLEAN\020\000\022\010\n\004INT8\020\001\022\t\n\005"
+  "INT16\020\002\022\t\n\005INT32\020\003\022\t\n\005INT64\020\004\022\t\n\005UINT8\020\005"
+  "\022\n\n\006UINT16\020\006\022\n\n\006UINT32\020\007\022\n\n\006UINT64\020\010\022\013\n\007"
+  "FLOAT32\020\t\022\013\n\007FLOAT64\020\n\022\n\n\006BINARY\020\013\022\n\n\006ST"
+  "RING\020\014\022\010\n\004DATE\020\r\022\014\n\010DATETIME\020\016\022\024\n\020TIMEST"
+  "AMP_SECOND\020\017\022\031\n\025TIMESTAMP_MILLISECOND\020\020\022"
+  "\031\n\025TIMESTAMP_MICROSECOND\020\021\022\030\n\024TIMESTAMP_"
+  "NANOSECOND\020\022\022\017\n\013TIME_SECOND\020\023\022\024\n\020TIME_MI"
+  "LLISECOND\020\024\022\024\n\020TIME_MICROSECOND\020\025\022\023\n\017TIM"
+  "E_NANOSECOND\020\026\022\027\n\023INTERVAL_YEAR_MONTH\020\027\022"
+  "\025\n\021INTERVAL_DAY_TIME\020\030\022\033\n\027INTERVAL_MONTH"
+  "_DAY_NANO\020\031\022\023\n\017DURATION_SECOND\020\032\022\030\n\024DURA"
+  "TION_MILLISECOND\020\033\022\030\n\024DURATION_MICROSECO"
+  "ND\020\034\022\027\n\023DURATION_NANOSECOND\020\035\022\016\n\nDECIMAL"
+  "128\020\036BO\n\016io.greptime.v1B\006CommonZ5github."
+  "com/GreptimeTeam/greptime-proto/go/grept"
+  "ime/v1b\006proto3"
   ;
 static ::_pbi::once_flag descriptor_table_greptime_2fv1_2fcommon_2eproto_once;
 const ::_pbi::DescriptorTable descriptor_table_greptime_2fv1_2fcommon_2eproto = {
-    false, false, 1636, descriptor_table_protodef_greptime_2fv1_2fcommon_2eproto,
+    false, false, 1654, descriptor_table_protodef_greptime_2fv1_2fcommon_2eproto,
     "greptime/v1/common.proto",
     &descriptor_table_greptime_2fv1_2fcommon_2eproto_once, nullptr, 0, 13,
     schemas, file_default_instances, TableStruct_greptime_2fv1_2fcommon_2eproto::offsets,
@@ -509,6 +512,7 @@ RequestHeader::RequestHeader(const RequestHeader& from)
     , decltype(_impl_.catalog_){}
     , decltype(_impl_.schema_){}
     , decltype(_impl_.dbname_){}
+    , decltype(_impl_.timezone_){}
     , decltype(_impl_.authorization_){nullptr}
     , /*decltype(_impl_._cached_size_)*/{}};
 
@@ -538,6 +542,14 @@ RequestHeader::RequestHeader(const RequestHeader& from)
     _this->_impl_.dbname_.Set(from._internal_dbname(), 
       _this->GetArenaForAllocation());
   }
+  _impl_.timezone_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.timezone_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (!from._internal_timezone().empty()) {
+    _this->_impl_.timezone_.Set(from._internal_timezone(), 
+      _this->GetArenaForAllocation());
+  }
   if (from._internal_has_authorization()) {
     _this->_impl_.authorization_ = new ::greptime::v1::AuthHeader(*from._impl_.authorization_);
   }
@@ -553,6 +565,7 @@ inline void RequestHeader::SharedCtor(
     , decltype(_impl_.catalog_){}
     , decltype(_impl_.schema_){}
     , decltype(_impl_.dbname_){}
+    , decltype(_impl_.timezone_){}
     , decltype(_impl_.authorization_){nullptr}
     , /*decltype(_impl_._cached_size_)*/{}
   };
@@ -568,6 +581,10 @@ inline void RequestHeader::SharedCtor(
   #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
     _impl_.dbname_.Set("", GetArenaForAllocation());
   #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  _impl_.timezone_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.timezone_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
 }
 
 RequestHeader::~RequestHeader() {
@@ -587,6 +604,7 @@ inline void RequestHeader::SharedDtor() {
   _impl_.catalog_.Destroy();
   _impl_.schema_.Destroy();
   _impl_.dbname_.Destroy();
+  _impl_.timezone_.Destroy();
   if (this != internal_default_instance()) delete _impl_.authorization_;
 }
 
@@ -608,6 +626,7 @@ void RequestHeader::Clear() {
   _impl_.catalog_.ClearToEmpty();
   _impl_.schema_.ClearToEmpty();
   _impl_.dbname_.ClearToEmpty();
+  _impl_.timezone_.ClearToEmpty();
   if (GetArenaForAllocation() == nullptr && _impl_.authorization_ != nullptr) {
     delete _impl_.authorization_;
   }
@@ -672,6 +691,16 @@ const char* RequestHeader::_InternalParse(const char* ptr, ::_pbi::ParseContext*
         } else
           goto handle_unusual;
         continue;
+      // string timezone = 6;
+      case 6:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 50)) {
+          auto str = _internal_mutable_timezone();
+          ptr = ::_pbi::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+          CHK_(::_pbi::VerifyUTF8(str, "greptime.v1.RequestHeader.timezone"));
+        } else
+          goto handle_unusual;
+        continue;
       default:
         goto handle_unusual;
     }  // switch
@@ -768,6 +797,16 @@ uint8_t* RequestHeader::_InternalSerialize(
     }
   }
 
+  // string timezone = 6;
+  if (!this->_internal_timezone().empty()) {
+    ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::VerifyUtf8String(
+      this->_internal_timezone().data(), static_cast<int>(this->_internal_timezone().length()),
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::SERIALIZE,
+      "greptime.v1.RequestHeader.timezone");
+    target = stream->WriteStringMaybeAliased(
+        6, this->_internal_timezone(), 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);
@@ -814,6 +853,13 @@ size_t RequestHeader::ByteSizeLong() const {
         this->_internal_dbname());
   }
 
+  // string timezone = 6;
+  if (!this->_internal_timezone().empty()) {
+    total_size += 1 +
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::StringSize(
+        this->_internal_timezone());
+  }
+
   // .greptime.v1.AuthHeader authorization = 3;
   if (this->_internal_has_authorization()) {
     total_size += 1 +
@@ -849,6 +895,9 @@ void RequestHeader::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::
   if (!from._internal_dbname().empty()) {
     _this->_internal_set_dbname(from._internal_dbname());
   }
+  if (!from._internal_timezone().empty()) {
+    _this->_internal_set_timezone(from._internal_timezone());
+  }
   if (from._internal_has_authorization()) {
     _this->_internal_mutable_authorization()->::greptime::v1::AuthHeader::MergeFrom(
         from._internal_authorization());
@@ -885,6 +934,10 @@ void RequestHeader::InternalSwap(RequestHeader* other) {
       &_impl_.dbname_, lhs_arena,
       &other->_impl_.dbname_, rhs_arena
   );
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &_impl_.timezone_, lhs_arena,
+      &other->_impl_.timezone_, rhs_arena
+  );
   swap(_impl_.authorization_, other->_impl_.authorization_);
 }
 
diff --git a/c++/greptime/v1/common.pb.h b/c++/greptime/v1/common.pb.h
index 74b724c4..696250ba 100644
--- a/c++/greptime/v1/common.pb.h
+++ b/c++/greptime/v1/common.pb.h
@@ -347,6 +347,7 @@ class RequestHeader final :
     kCatalogFieldNumber = 1,
     kSchemaFieldNumber = 2,
     kDbnameFieldNumber = 4,
+    kTimezoneFieldNumber = 6,
     kAuthorizationFieldNumber = 3,
   };
   // map<string, string> tracing_context = 5;
@@ -408,6 +409,20 @@ class RequestHeader final :
   std::string* _internal_mutable_dbname();
   public:
 
+  // string timezone = 6;
+  void clear_timezone();
+  const std::string& timezone() const;
+  template <typename ArgT0 = const std::string&, typename... ArgT>
+  void set_timezone(ArgT0&& arg0, ArgT... args);
+  std::string* mutable_timezone();
+  PROTOBUF_NODISCARD std::string* release_timezone();
+  void set_allocated_timezone(std::string* timezone);
+  private:
+  const std::string& _internal_timezone() const;
+  inline PROTOBUF_ALWAYS_INLINE void _internal_set_timezone(const std::string& value);
+  std::string* _internal_mutable_timezone();
+  public:
+
   // .greptime.v1.AuthHeader authorization = 3;
   bool has_authorization() const;
   private:
@@ -442,6 +457,7 @@ class RequestHeader final :
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr catalog_;
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr schema_;
     ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr dbname_;
+    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr timezone_;
     ::greptime::v1::AuthHeader* authorization_;
     mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
   };
@@ -2536,6 +2552,56 @@ RequestHeader::mutable_tracing_context() {
   return _internal_mutable_tracing_context();
 }
 
+// string timezone = 6;
+inline void RequestHeader::clear_timezone() {
+  _impl_.timezone_.ClearToEmpty();
+}
+inline const std::string& RequestHeader::timezone() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.RequestHeader.timezone)
+  return _internal_timezone();
+}
+template <typename ArgT0, typename... ArgT>
+inline PROTOBUF_ALWAYS_INLINE
+void RequestHeader::set_timezone(ArgT0&& arg0, ArgT... args) {
+ 
+ _impl_.timezone_.Set(static_cast<ArgT0 &&>(arg0), args..., GetArenaForAllocation());
+  // @@protoc_insertion_point(field_set:greptime.v1.RequestHeader.timezone)
+}
+inline std::string* RequestHeader::mutable_timezone() {
+  std::string* _s = _internal_mutable_timezone();
+  // @@protoc_insertion_point(field_mutable:greptime.v1.RequestHeader.timezone)
+  return _s;
+}
+inline const std::string& RequestHeader::_internal_timezone() const {
+  return _impl_.timezone_.Get();
+}
+inline void RequestHeader::_internal_set_timezone(const std::string& value) {
+  
+  _impl_.timezone_.Set(value, GetArenaForAllocation());
+}
+inline std::string* RequestHeader::_internal_mutable_timezone() {
+  
+  return _impl_.timezone_.Mutable(GetArenaForAllocation());
+}
+inline std::string* RequestHeader::release_timezone() {
+  // @@protoc_insertion_point(field_release:greptime.v1.RequestHeader.timezone)
+  return _impl_.timezone_.Release();
+}
+inline void RequestHeader::set_allocated_timezone(std::string* timezone) {
+  if (timezone != nullptr) {
+    
+  } else {
+    
+  }
+  _impl_.timezone_.SetAllocated(timezone, GetArenaForAllocation());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (_impl_.timezone_.IsDefault()) {
+    _impl_.timezone_.Set("", GetArenaForAllocation());
+  }
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  // @@protoc_insertion_point(field_set_allocated:greptime.v1.RequestHeader.timezone)
+}
+
 // -------------------------------------------------------------------
 
 // ResponseHeader
diff --git a/go/greptime/v1/common.pb.go b/go/greptime/v1/common.pb.go
index 746e08da..f1c101ee 100644
--- a/go/greptime/v1/common.pb.go
+++ b/go/greptime/v1/common.pb.go
@@ -232,6 +232,8 @@ type RequestHeader struct {
 	// Encoded trace_id & span_id, follow the w3c Trace Context
 	// https://www.w3.org/TR/trace-context/#header-name
 	TracingContext map[string]string `protobuf:"bytes,5,rep,name=tracing_context,json=tracingContext,proto3" json:"tracing_context,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	// The `timezone` for the request
+	Timezone string `protobuf:"bytes,6,opt,name=timezone,proto3" json:"timezone,omitempty"`
 }
 
 func (x *RequestHeader) Reset() {
@@ -301,6 +303,13 @@ func (x *RequestHeader) GetTracingContext() map[string]string {
 	return nil
 }
 
+func (x *RequestHeader) GetTimezone() string {
+	if x != nil {
+		return x.Timezone
+	}
+	return ""
+}
+
 type ResponseHeader struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
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 }
 
 var (
diff --git a/java/src/main/java/io/greptime/v1/Common.java b/java/src/main/java/io/greptime/v1/Common.java
index 24d0b947..d809960c 100644
--- a/java/src/main/java/io/greptime/v1/Common.java
+++ b/java/src/main/java/io/greptime/v1/Common.java
@@ -651,6 +651,26 @@ java.lang.String getTracingContextOrDefault(
 
     java.lang.String getTracingContextOrThrow(
         java.lang.String key);
+
+    /**
+     * <pre>
+     * The `timezone` for the request
+     * </pre>
+     *
+     * <code>string timezone = 6;</code>
+     * @return The timezone.
+     */
+    java.lang.String getTimezone();
+    /**
+     * <pre>
+     * The `timezone` for the request
+     * </pre>
+     *
+     * <code>string timezone = 6;</code>
+     * @return The bytes for timezone.
+     */
+    com.google.protobuf.ByteString
+        getTimezoneBytes();
   }
   /**
    * Protobuf type {@code greptime.v1.RequestHeader}
@@ -668,6 +688,7 @@ private RequestHeader() {
       catalog_ = "";
       schema_ = "";
       dbname_ = "";
+      timezone_ = "";
     }
 
     @java.lang.Override
@@ -745,6 +766,12 @@ private RequestHeader(
                   tracingContext__.getKey(), tracingContext__.getValue());
               break;
             }
+            case 50: {
+              java.lang.String s = input.readStringRequireUtf8();
+
+              timezone_ = s;
+              break;
+            }
             default: {
               if (!parseUnknownField(
                   input, unknownFields, extensionRegistry, tag)) {
@@ -1068,6 +1095,52 @@ public java.lang.String getTracingContextOrThrow(
       return map.get(key);
     }
 
+    public static final int TIMEZONE_FIELD_NUMBER = 6;
+    private volatile java.lang.Object timezone_;
+    /**
+     * <pre>
+     * The `timezone` for the request
+     * </pre>
+     *
+     * <code>string timezone = 6;</code>
+     * @return The timezone.
+     */
+    @java.lang.Override
+    public java.lang.String getTimezone() {
+      java.lang.Object ref = timezone_;
+      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();
+        timezone_ = s;
+        return s;
+      }
+    }
+    /**
+     * <pre>
+     * The `timezone` for the request
+     * </pre>
+     *
+     * <code>string timezone = 6;</code>
+     * @return The bytes for timezone.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString
+        getTimezoneBytes() {
+      java.lang.Object ref = timezone_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        timezone_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
     private byte memoizedIsInitialized = -1;
     @java.lang.Override
     public final boolean isInitialized() {
@@ -1100,6 +1173,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output)
           internalGetTracingContext(),
           TracingContextDefaultEntryHolder.defaultEntry,
           5);
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(timezone_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 6, timezone_);
+      }
       unknownFields.writeTo(output);
     }
 
@@ -1132,6 +1208,9 @@ public int getSerializedSize() {
         size += com.google.protobuf.CodedOutputStream
             .computeMessageSize(5, tracingContext__);
       }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(timezone_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, timezone_);
+      }
       size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
@@ -1160,6 +1239,8 @@ public boolean equals(final java.lang.Object obj) {
           .equals(other.getDbname())) return false;
       if (!internalGetTracingContext().equals(
           other.internalGetTracingContext())) return false;
+      if (!getTimezone()
+          .equals(other.getTimezone())) return false;
       if (!unknownFields.equals(other.unknownFields)) return false;
       return true;
     }
@@ -1185,6 +1266,8 @@ public int hashCode() {
         hash = (37 * hash) + TRACING_CONTEXT_FIELD_NUMBER;
         hash = (53 * hash) + internalGetTracingContext().hashCode();
       }
+      hash = (37 * hash) + TIMEZONE_FIELD_NUMBER;
+      hash = (53 * hash) + getTimezone().hashCode();
       hash = (29 * hash) + unknownFields.hashCode();
       memoizedHashCode = hash;
       return hash;
@@ -1353,6 +1436,8 @@ public Builder clear() {
         dbname_ = "";
 
         internalGetMutableTracingContext().clear();
+        timezone_ = "";
+
         return this;
       }
 
@@ -1390,6 +1475,7 @@ public io.greptime.v1.Common.RequestHeader buildPartial() {
         result.dbname_ = dbname_;
         result.tracingContext_ = internalGetTracingContext();
         result.tracingContext_.makeImmutable();
+        result.timezone_ = timezone_;
         onBuilt();
         return result;
       }
@@ -1455,6 +1541,10 @@ public Builder mergeFrom(io.greptime.v1.Common.RequestHeader other) {
         }
         internalGetMutableTracingContext().mergeFrom(
             other.internalGetTracingContext());
+        if (!other.getTimezone().isEmpty()) {
+          timezone_ = other.timezone_;
+          onChanged();
+        }
         this.mergeUnknownFields(other.unknownFields);
         onChanged();
         return this;
@@ -2093,6 +2183,102 @@ public Builder putAllTracingContext(
             .putAll(values);
         return this;
       }
+
+      private java.lang.Object timezone_ = "";
+      /**
+       * <pre>
+       * The `timezone` for the request
+       * </pre>
+       *
+       * <code>string timezone = 6;</code>
+       * @return The timezone.
+       */
+      public java.lang.String getTimezone() {
+        java.lang.Object ref = timezone_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs =
+              (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          timezone_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       * <pre>
+       * The `timezone` for the request
+       * </pre>
+       *
+       * <code>string timezone = 6;</code>
+       * @return The bytes for timezone.
+       */
+      public com.google.protobuf.ByteString
+          getTimezoneBytes() {
+        java.lang.Object ref = timezone_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          timezone_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * <pre>
+       * The `timezone` for the request
+       * </pre>
+       *
+       * <code>string timezone = 6;</code>
+       * @param value The timezone to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTimezone(
+          java.lang.String value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  
+        timezone_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <pre>
+       * The `timezone` for the request
+       * </pre>
+       *
+       * <code>string timezone = 6;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearTimezone() {
+        
+        timezone_ = getDefaultInstance().getTimezone();
+        onChanged();
+        return this;
+      }
+      /**
+       * <pre>
+       * The `timezone` for the request
+       * </pre>
+       *
+       * <code>string timezone = 6;</code>
+       * @param value The bytes for timezone to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTimezoneBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+        
+        timezone_ = value;
+        onChanged();
+        return this;
+      }
       @java.lang.Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -9348,46 +9534,47 @@ public io.greptime.v1.Common.DecimalTypeExtension getDefaultInstanceForType() {
   static {
     java.lang.String[] descriptorData = {
       "\n\030greptime/v1/common.proto\022\013greptime.v1\"" +
-      "\360\001\n\rRequestHeader\022\017\n\007catalog\030\001 \001(\t\022\016\n\006sc" +
+      "\202\002\n\rRequestHeader\022\017\n\007catalog\030\001 \001(\t\022\016\n\006sc" +
       "hema\030\002 \001(\t\022.\n\rauthorization\030\003 \001(\0132\027.grep" +
       "time.v1.AuthHeader\022\016\n\006dbname\030\004 \001(\t\022G\n\017tr" +
       "acing_context\030\005 \003(\0132..greptime.v1.Reques" +
-      "tHeader.TracingContextEntry\0325\n\023TracingCo" +
-      "ntextEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\002" +
-      "8\001\"5\n\016ResponseHeader\022#\n\006status\030\001 \001(\0132\023.g" +
-      "reptime.v1.Status\".\n\006Status\022\023\n\013status_co" +
-      "de\030\001 \001(\r\022\017\n\007err_msg\030\002 \001(\t\"e\n\nAuthHeader\022" +
-      "#\n\005basic\030\001 \001(\0132\022.greptime.v1.BasicH\000\022#\n\005" +
-      "token\030\002 \001(\0132\022.greptime.v1.TokenH\000B\r\n\013aut" +
-      "h_scheme\"+\n\005Basic\022\020\n\010username\030\001 \001(\t\022\020\n\010p" +
-      "assword\030\002 \001(\t\"\026\n\005Token\022\r\n\005token\030\001 \001(\t\"\035\n" +
-      "\014AffectedRows\022\r\n\005value\030\001 \001(\r\"B\n\016FlightMe" +
-      "tadata\0220\n\raffected_rows\030\001 \001(\0132\031.greptime" +
-      ".v1.AffectedRows\"I\n\024IntervalMonthDayNano" +
-      "\022\016\n\006months\030\001 \001(\005\022\014\n\004days\030\002 \001(\005\022\023\n\013nanose" +
-      "conds\030\003 \001(\003\"$\n\nDecimal128\022\n\n\002hi\030\001 \001(\003\022\n\n" +
-      "\002lo\030\002 \001(\003\"`\n\027ColumnDataTypeExtension\0229\n\014" +
-      "decimal_type\030\001 \001(\0132!.greptime.v1.Decimal" +
-      "TypeExtensionH\000B\n\n\010type_ext\"8\n\024DecimalTy" +
-      "peExtension\022\021\n\tprecision\030\001 \001(\005\022\r\n\005scale\030" +
-      "\002 \001(\005*1\n\014SemanticType\022\007\n\003TAG\020\000\022\t\n\005FIELD\020" +
-      "\001\022\r\n\tTIMESTAMP\020\002*\270\004\n\016ColumnDataType\022\013\n\007B" +
-      "OOLEAN\020\000\022\010\n\004INT8\020\001\022\t\n\005INT16\020\002\022\t\n\005INT32\020\003" +
-      "\022\t\n\005INT64\020\004\022\t\n\005UINT8\020\005\022\n\n\006UINT16\020\006\022\n\n\006UI" +
-      "NT32\020\007\022\n\n\006UINT64\020\010\022\013\n\007FLOAT32\020\t\022\013\n\007FLOAT" +
-      "64\020\n\022\n\n\006BINARY\020\013\022\n\n\006STRING\020\014\022\010\n\004DATE\020\r\022\014" +
-      "\n\010DATETIME\020\016\022\024\n\020TIMESTAMP_SECOND\020\017\022\031\n\025TI" +
-      "MESTAMP_MILLISECOND\020\020\022\031\n\025TIMESTAMP_MICRO" +
-      "SECOND\020\021\022\030\n\024TIMESTAMP_NANOSECOND\020\022\022\017\n\013TI" +
-      "ME_SECOND\020\023\022\024\n\020TIME_MILLISECOND\020\024\022\024\n\020TIM" +
-      "E_MICROSECOND\020\025\022\023\n\017TIME_NANOSECOND\020\026\022\027\n\023" +
-      "INTERVAL_YEAR_MONTH\020\027\022\025\n\021INTERVAL_DAY_TI" +
-      "ME\020\030\022\033\n\027INTERVAL_MONTH_DAY_NANO\020\031\022\023\n\017DUR" +
-      "ATION_SECOND\020\032\022\030\n\024DURATION_MILLISECOND\020\033" +
-      "\022\030\n\024DURATION_MICROSECOND\020\034\022\027\n\023DURATION_N" +
-      "ANOSECOND\020\035\022\016\n\nDECIMAL128\020\036BO\n\016io.grepti" +
-      "me.v1B\006CommonZ5github.com/GreptimeTeam/g" +
-      "reptime-proto/go/greptime/v1b\006proto3"
+      "tHeader.TracingContextEntry\022\020\n\010timezone\030" +
+      "\006 \001(\t\0325\n\023TracingContextEntry\022\013\n\003key\030\001 \001(" +
+      "\t\022\r\n\005value\030\002 \001(\t:\0028\001\"5\n\016ResponseHeader\022#" +
+      "\n\006status\030\001 \001(\0132\023.greptime.v1.Status\".\n\006S" +
+      "tatus\022\023\n\013status_code\030\001 \001(\r\022\017\n\007err_msg\030\002 " +
+      "\001(\t\"e\n\nAuthHeader\022#\n\005basic\030\001 \001(\0132\022.grept" +
+      "ime.v1.BasicH\000\022#\n\005token\030\002 \001(\0132\022.greptime" +
+      ".v1.TokenH\000B\r\n\013auth_scheme\"+\n\005Basic\022\020\n\010u" +
+      "sername\030\001 \001(\t\022\020\n\010password\030\002 \001(\t\"\026\n\005Token" +
+      "\022\r\n\005token\030\001 \001(\t\"\035\n\014AffectedRows\022\r\n\005value" +
+      "\030\001 \001(\r\"B\n\016FlightMetadata\0220\n\raffected_row" +
+      "s\030\001 \001(\0132\031.greptime.v1.AffectedRows\"I\n\024In" +
+      "tervalMonthDayNano\022\016\n\006months\030\001 \001(\005\022\014\n\004da" +
+      "ys\030\002 \001(\005\022\023\n\013nanoseconds\030\003 \001(\003\"$\n\nDecimal" +
+      "128\022\n\n\002hi\030\001 \001(\003\022\n\n\002lo\030\002 \001(\003\"`\n\027ColumnDat" +
+      "aTypeExtension\0229\n\014decimal_type\030\001 \001(\0132!.g" +
+      "reptime.v1.DecimalTypeExtensionH\000B\n\n\010typ" +
+      "e_ext\"8\n\024DecimalTypeExtension\022\021\n\tprecisi" +
+      "on\030\001 \001(\005\022\r\n\005scale\030\002 \001(\005*1\n\014SemanticType\022" +
+      "\007\n\003TAG\020\000\022\t\n\005FIELD\020\001\022\r\n\tTIMESTAMP\020\002*\270\004\n\016C" +
+      "olumnDataType\022\013\n\007BOOLEAN\020\000\022\010\n\004INT8\020\001\022\t\n\005" +
+      "INT16\020\002\022\t\n\005INT32\020\003\022\t\n\005INT64\020\004\022\t\n\005UINT8\020\005" +
+      "\022\n\n\006UINT16\020\006\022\n\n\006UINT32\020\007\022\n\n\006UINT64\020\010\022\013\n\007" +
+      "FLOAT32\020\t\022\013\n\007FLOAT64\020\n\022\n\n\006BINARY\020\013\022\n\n\006ST" +
+      "RING\020\014\022\010\n\004DATE\020\r\022\014\n\010DATETIME\020\016\022\024\n\020TIMEST" +
+      "AMP_SECOND\020\017\022\031\n\025TIMESTAMP_MILLISECOND\020\020\022" +
+      "\031\n\025TIMESTAMP_MICROSECOND\020\021\022\030\n\024TIMESTAMP_" +
+      "NANOSECOND\020\022\022\017\n\013TIME_SECOND\020\023\022\024\n\020TIME_MI" +
+      "LLISECOND\020\024\022\024\n\020TIME_MICROSECOND\020\025\022\023\n\017TIM" +
+      "E_NANOSECOND\020\026\022\027\n\023INTERVAL_YEAR_MONTH\020\027\022" +
+      "\025\n\021INTERVAL_DAY_TIME\020\030\022\033\n\027INTERVAL_MONTH" +
+      "_DAY_NANO\020\031\022\023\n\017DURATION_SECOND\020\032\022\030\n\024DURA" +
+      "TION_MILLISECOND\020\033\022\030\n\024DURATION_MICROSECO" +
+      "ND\020\034\022\027\n\023DURATION_NANOSECOND\020\035\022\016\n\nDECIMAL" +
+      "128\020\036BO\n\016io.greptime.v1B\006CommonZ5github." +
+      "com/GreptimeTeam/greptime-proto/go/grept" +
+      "ime/v1b\006proto3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
@@ -9398,7 +9585,7 @@ public io.greptime.v1.Common.DecimalTypeExtension getDefaultInstanceForType() {
     internal_static_greptime_v1_RequestHeader_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_RequestHeader_descriptor,
-        new java.lang.String[] { "Catalog", "Schema", "Authorization", "Dbname", "TracingContext", });
+        new java.lang.String[] { "Catalog", "Schema", "Authorization", "Dbname", "TracingContext", "Timezone", });
     internal_static_greptime_v1_RequestHeader_TracingContextEntry_descriptor =
       internal_static_greptime_v1_RequestHeader_descriptor.getNestedTypes().get(0);
     internal_static_greptime_v1_RequestHeader_TracingContextEntry_fieldAccessorTable = new
diff --git a/proto/greptime/v1/common.proto b/proto/greptime/v1/common.proto
index 0fe8cd23..5e5442d7 100644
--- a/proto/greptime/v1/common.proto
+++ b/proto/greptime/v1/common.proto
@@ -32,6 +32,8 @@ message RequestHeader {
   // Encoded trace_id & span_id, follow the w3c Trace Context
   // https://www.w3.org/TR/trace-context/#header-name
   map<string, string> tracing_context = 5;
+  // The `timezone` for the request
+  string timezone = 6;
 }
 
 message ResponseHeader { Status status = 1; }
@@ -114,9 +116,7 @@ message Decimal128 {
 
 // Type extension for some complex types
 message ColumnDataTypeExtension {
-  oneof type_ext {
-    DecimalTypeExtension decimal_type = 1;
-  }
+  oneof type_ext { DecimalTypeExtension decimal_type = 1; }
 }
 
 message DecimalTypeExtension {