diff --git a/src/Dictionaries/CacheDictionary.cpp b/src/Dictionaries/CacheDictionary.cpp
index a5f953ccc15..0b2044cfe2c 100644
--- a/src/Dictionaries/CacheDictionary.cpp
+++ b/src/Dictionaries/CacheDictionary.cpp
@@ -151,7 +151,7 @@ Columns CacheDictionary<dictionary_key_type>::getColumns(
     * use default value.
     */
 
-    if (dictionary_key_type == DictionaryKeyType::complex)
+    if (dictionary_key_type == DictionaryKeyType::Complex)
         dict_struct.validateKeyTypes(key_types);
 
     DictionaryKeysArenaHolder<dictionary_key_type> arena_holder;
@@ -268,7 +268,7 @@ ColumnUInt8::Ptr CacheDictionary<dictionary_key_type>::hasKeys(const Columns & k
     * Check that key was fetched during update for that key set true in result array.
     */
 
-    if (dictionary_key_type == DictionaryKeyType::complex)
+    if (dictionary_key_type == DictionaryKeyType::Complex)
         dict_struct.validateKeyTypes(key_types);
 
 
@@ -364,7 +364,7 @@ ColumnPtr CacheDictionary<dictionary_key_type>::getHierarchy(
     ColumnPtr key_column [[maybe_unused]],
     const DataTypePtr & key_type [[maybe_unused]]) const
 {
-    if (dictionary_key_type == DictionaryKeyType::simple)
+    if (dictionary_key_type == DictionaryKeyType::Simple)
     {
         size_t keys_found;
         auto result = getKeysHierarchyDefaultImplementation(this, key_column, key_type, keys_found);
@@ -382,7 +382,7 @@ ColumnUInt8::Ptr CacheDictionary<dictionary_key_type>::isInHierarchy(
     ColumnPtr in_key_column [[maybe_unused]],
     const DataTypePtr & key_type [[maybe_unused]]) const
 {
-    if (dictionary_key_type == DictionaryKeyType::simple)
+    if (dictionary_key_type == DictionaryKeyType::Simple)
     {
         size_t keys_found;
         auto result = getKeysIsInHierarchyDefaultImplementation(this, key_column, in_key_column, key_type, keys_found);
@@ -492,7 +492,7 @@ Pipe CacheDictionary<dictionary_key_type>::read(const Names & column_names, size
         /// Write lock on storage
         const ProfilingScopedWriteRWLock write_lock{rw_lock, ProfileEvents::DictCacheLockWriteNs};
 
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             data.emplace(shared_from_this(), cache_storage_ptr->getCachedSimpleKeys(), column_names);
         else
         {
@@ -534,7 +534,7 @@ void CacheDictionary<dictionary_key_type>::update(CacheDictionaryUpdateUnitPtr<d
     std::vector<UInt64> requested_keys_vector;
     std::vector<size_t> requested_complex_key_rows;
 
-    if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
         requested_keys_vector.reserve(requested_keys.size());
     else
         requested_complex_key_rows.reserve(requested_keys.size());
@@ -546,7 +546,7 @@ void CacheDictionary<dictionary_key_type>::update(CacheDictionaryUpdateUnitPtr<d
         if (key_index_to_state_from_storage[i].isExpired()
             || key_index_to_state_from_storage[i].isNotFound())
         {
-            if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+            if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
                 requested_keys_vector.emplace_back(requested_keys[i]);
             else
                 requested_complex_key_rows.emplace_back(i);
@@ -572,7 +572,7 @@ void CacheDictionary<dictionary_key_type>::update(CacheDictionaryUpdateUnitPtr<d
             Stopwatch watch;
             QueryPipeline pipeline;
 
-            if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+            if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
                 pipeline.init(current_source_ptr->loadIds(requested_keys_vector));
             else
                 pipeline.init(current_source_ptr->loadKeys(update_unit_ptr->key_columns, requested_complex_key_rows));
@@ -684,7 +684,7 @@ void CacheDictionary<dictionary_key_type>::update(CacheDictionaryUpdateUnitPtr<d
     }
 }
 
-template class CacheDictionary<DictionaryKeyType::simple>;
-template class CacheDictionary<DictionaryKeyType::complex>;
+template class CacheDictionary<DictionaryKeyType::Simple>;
+template class CacheDictionary<DictionaryKeyType::Complex>;
 
 }
diff --git a/src/Dictionaries/CacheDictionary.h b/src/Dictionaries/CacheDictionary.h
index 613d73b0f83..0e2a2699c45 100644
--- a/src/Dictionaries/CacheDictionary.h
+++ b/src/Dictionaries/CacheDictionary.h
@@ -51,8 +51,7 @@ template <DictionaryKeyType dictionary_key_type>
 class CacheDictionary final : public IDictionary
 {
 public:
-    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
-    static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by cache dictionary");
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     CacheDictionary(
         const StorageID & dict_id_,
@@ -118,7 +117,7 @@ public:
 
     DictionaryKeyType getKeyType() const override
     {
-        return dictionary_key_type == DictionaryKeyType::simple ? DictionaryKeyType::simple : DictionaryKeyType::complex;
+        return dictionary_key_type == DictionaryKeyType::Simple ? DictionaryKeyType::Simple : DictionaryKeyType::Complex;
     }
 
     ColumnPtr getColumn(
@@ -141,7 +140,7 @@ public:
 
     std::exception_ptr getLastException() const override;
 
-    bool hasHierarchy() const override { return dictionary_key_type == DictionaryKeyType::simple && dict_struct.hierarchical_attribute_index.has_value(); }
+    bool hasHierarchy() const override { return dictionary_key_type == DictionaryKeyType::Simple && dict_struct.hierarchical_attribute_index.has_value(); }
 
     ColumnPtr getHierarchy(ColumnPtr key_column, const DataTypePtr & key_type) const override;
 
@@ -151,7 +150,7 @@ public:
         const DataTypePtr & key_type) const override;
 
 private:
-    using FetchResult = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, SimpleKeysStorageFetchResult, ComplexKeysStorageFetchResult>;
+    using FetchResult = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, SimpleKeysStorageFetchResult, ComplexKeysStorageFetchResult>;
 
     static MutableColumns aggregateColumnsInOrderOfKeys(
         const PaddedPODArray<KeyType> & keys,
@@ -219,7 +218,7 @@ private:
 
 };
 
-extern template class CacheDictionary<DictionaryKeyType::simple>;
-extern template class CacheDictionary<DictionaryKeyType::complex>;
+extern template class CacheDictionary<DictionaryKeyType::Simple>;
+extern template class CacheDictionary<DictionaryKeyType::Complex>;
 
 }
diff --git a/src/Dictionaries/CacheDictionaryStorage.h b/src/Dictionaries/CacheDictionaryStorage.h
index 8374e649cd1..2c7e9ad7092 100644
--- a/src/Dictionaries/CacheDictionaryStorage.h
+++ b/src/Dictionaries/CacheDictionaryStorage.h
@@ -41,8 +41,7 @@ class CacheDictionaryStorage final : public ICacheDictionaryStorage
     static constexpr size_t max_collision_length = 10;
 
 public:
-    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
-    static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by CacheDictionaryStorage");
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     explicit CacheDictionaryStorage(
         const DictionaryStructure & dictionary_structure,
@@ -62,19 +61,19 @@ public:
 
     String getName() const override
     {
-        if (dictionary_key_type == DictionaryKeyType::simple)
+        if (dictionary_key_type == DictionaryKeyType::Simple)
             return "Cache";
         else
             return "ComplexKeyCache";
     }
 
-    bool supportsSimpleKeys() const override { return dictionary_key_type == DictionaryKeyType::simple; }
+    bool supportsSimpleKeys() const override { return dictionary_key_type == DictionaryKeyType::Simple; }
 
     SimpleKeysStorageFetchResult fetchColumnsForKeys(
         const PaddedPODArray<UInt64> & keys,
         const DictionaryStorageFetchRequest & fetch_request) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             return fetchColumnsForKeysImpl<SimpleKeysStorageFetchResult>(keys, fetch_request);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method fetchColumnsForKeys is not supported for complex key storage");
@@ -82,7 +81,7 @@ public:
 
     void insertColumnsForKeys(const PaddedPODArray<UInt64> & keys, Columns columns) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             insertColumnsForKeysImpl(keys, columns);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertColumnsForKeys is not supported for complex key storage");
@@ -90,7 +89,7 @@ public:
 
     void insertDefaultKeys(const PaddedPODArray<UInt64> & keys) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             insertDefaultKeysImpl(keys);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertDefaultKeysImpl is not supported for complex key storage");
@@ -98,19 +97,19 @@ public:
 
     PaddedPODArray<UInt64> getCachedSimpleKeys() const override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             return getCachedKeysImpl();
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method getCachedSimpleKeys is not supported for complex key storage");
     }
 
-    bool supportsComplexKeys() const override { return dictionary_key_type == DictionaryKeyType::complex; }
+    bool supportsComplexKeys() const override { return dictionary_key_type == DictionaryKeyType::Complex; }
 
     ComplexKeysStorageFetchResult fetchColumnsForKeys(
         const PaddedPODArray<StringRef> & keys,
         const DictionaryStorageFetchRequest & column_fetch_requests) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             return fetchColumnsForKeysImpl<ComplexKeysStorageFetchResult>(keys, column_fetch_requests);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method fetchColumnsForKeys is not supported for simple key storage");
@@ -118,7 +117,7 @@ public:
 
     void insertColumnsForKeys(const PaddedPODArray<StringRef> & keys, Columns columns) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             insertColumnsForKeysImpl(keys, columns);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertColumnsForKeys is not supported for simple key storage");
@@ -126,7 +125,7 @@ public:
 
     void insertDefaultKeys(const PaddedPODArray<StringRef> & keys) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             insertDefaultKeysImpl(keys);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertDefaultKeysImpl is not supported for simple key storage");
@@ -134,7 +133,7 @@ public:
 
     PaddedPODArray<StringRef> getCachedComplexKeys() const override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             return getCachedKeysImpl();
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method getCachedComplexKeys is not supported for simple key storage");
diff --git a/src/Dictionaries/CacheDictionaryUpdateQueue.cpp b/src/Dictionaries/CacheDictionaryUpdateQueue.cpp
index 310abed822f..1d96fcc108b 100644
--- a/src/Dictionaries/CacheDictionaryUpdateQueue.cpp
+++ b/src/Dictionaries/CacheDictionaryUpdateQueue.cpp
@@ -14,8 +14,8 @@ namespace ErrorCodes
     extern const int TIMEOUT_EXCEEDED;
 }
 
-template class CacheDictionaryUpdateUnit<DictionaryKeyType::simple>;
-template class CacheDictionaryUpdateUnit<DictionaryKeyType::complex>;
+template class CacheDictionaryUpdateUnit<DictionaryKeyType::Simple>;
+template class CacheDictionaryUpdateUnit<DictionaryKeyType::Complex>;
 
 template <DictionaryKeyType dictionary_key_type>
 CacheDictionaryUpdateQueue<dictionary_key_type>::CacheDictionaryUpdateQueue(
@@ -155,7 +155,7 @@ void CacheDictionaryUpdateQueue<dictionary_key_type>::updateThreadFunction()
     }
 }
 
-template class CacheDictionaryUpdateQueue<DictionaryKeyType::simple>;
-template class CacheDictionaryUpdateQueue<DictionaryKeyType::complex>;
+template class CacheDictionaryUpdateQueue<DictionaryKeyType::Simple>;
+template class CacheDictionaryUpdateQueue<DictionaryKeyType::Complex>;
 
 }
diff --git a/src/Dictionaries/CacheDictionaryUpdateQueue.h b/src/Dictionaries/CacheDictionaryUpdateQueue.h
index 3d27a157752..bcad376bc53 100644
--- a/src/Dictionaries/CacheDictionaryUpdateQueue.h
+++ b/src/Dictionaries/CacheDictionaryUpdateQueue.h
@@ -39,7 +39,7 @@ template <DictionaryKeyType dictionary_key_type>
 class CacheDictionaryUpdateUnit
 {
 public:
-    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     /// Constructor for complex keys update request
     explicit CacheDictionaryUpdateUnit(
@@ -85,8 +85,8 @@ private:
 template <DictionaryKeyType dictionary_key_type>
 using CacheDictionaryUpdateUnitPtr = std::shared_ptr<CacheDictionaryUpdateUnit<dictionary_key_type>>;
 
-extern template class CacheDictionaryUpdateUnit<DictionaryKeyType::simple>;
-extern template class CacheDictionaryUpdateUnit<DictionaryKeyType::complex>;
+extern template class CacheDictionaryUpdateUnit<DictionaryKeyType::Simple>;
+extern template class CacheDictionaryUpdateUnit<DictionaryKeyType::Complex>;
 
 struct CacheDictionaryUpdateQueueConfiguration
 {
@@ -110,7 +110,6 @@ class CacheDictionaryUpdateQueue
 public:
     /// Client of update queue must provide this function in constructor and perform update using update unit.
     using UpdateFunction = std::function<void (CacheDictionaryUpdateUnitPtr<dictionary_key_type>)>;
-    static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by CacheDictionaryUpdateQueue");
 
     CacheDictionaryUpdateQueue(
         String dictionary_name_for_logs_,
@@ -167,7 +166,7 @@ private:
     std::atomic<bool> finished{false};
 };
 
-extern template class CacheDictionaryUpdateQueue<DictionaryKeyType::simple>;
-extern template class CacheDictionaryUpdateQueue<DictionaryKeyType::complex>;
+extern template class CacheDictionaryUpdateQueue<DictionaryKeyType::Simple>;
+extern template class CacheDictionaryUpdateQueue<DictionaryKeyType::Complex>;
 
 }
diff --git a/src/Dictionaries/DictionaryHelpers.h b/src/Dictionaries/DictionaryHelpers.h
index 3d077414291..0c04d87c959 100644
--- a/src/Dictionaries/DictionaryHelpers.h
+++ b/src/Dictionaries/DictionaryHelpers.h
@@ -380,14 +380,14 @@ template <DictionaryKeyType key_type>
 class DictionaryKeysArenaHolder;
 
 template <>
-class DictionaryKeysArenaHolder<DictionaryKeyType::simple>
+class DictionaryKeysArenaHolder<DictionaryKeyType::Simple>
 {
 public:
     static Arena * getComplexKeyArena() { return nullptr; }
 };
 
 template <>
-class DictionaryKeysArenaHolder<DictionaryKeyType::complex>
+class DictionaryKeysArenaHolder<DictionaryKeyType::Complex>
 {
 public:
 
@@ -402,8 +402,7 @@ template <DictionaryKeyType key_type>
 class DictionaryKeysExtractor
 {
 public:
-    using KeyType = std::conditional_t<key_type == DictionaryKeyType::simple, UInt64, StringRef>;
-    static_assert(key_type != DictionaryKeyType::range, "Range key type is not supported by DictionaryKeysExtractor");
+    using KeyType = std::conditional_t<key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     explicit DictionaryKeysExtractor(const Columns & key_columns_, Arena * complex_key_arena_)
         : key_columns(key_columns_)
@@ -411,7 +410,7 @@ public:
     {
         assert(!key_columns.empty());
 
-        if constexpr (key_type == DictionaryKeyType::simple)
+        if constexpr (key_type == DictionaryKeyType::Simple)
         {
             key_columns[0] = key_columns[0]->convertToFullColumnIfConst();
 
@@ -437,7 +436,7 @@ public:
     {
         assert(current_key_index < keys_size);
 
-        if constexpr (key_type == DictionaryKeyType::simple)
+        if constexpr (key_type == DictionaryKeyType::Simple)
         {
             const auto & column_vector = static_cast<const ColumnVector<UInt64> &>(*key_columns[0]);
             const auto & data = column_vector.getData();
@@ -465,7 +464,7 @@ public:
 
     void rollbackCurrentKey() const
     {
-        if constexpr (key_type == DictionaryKeyType::complex)
+        if constexpr (key_type == DictionaryKeyType::Complex)
             complex_key_arena->rollback(current_complex_key.size);
     }
 
@@ -521,8 +520,7 @@ void mergeBlockWithPipe(
     Block & block_to_update,
     Pipe pipe)
 {
-    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
-    static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by updatePreviousyLoadedBlockWithStream");
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     Columns saved_block_key_columns;
     saved_block_key_columns.reserve(key_columns_size);
diff --git a/src/Dictionaries/DictionarySource.cpp b/src/Dictionaries/DictionarySource.cpp
index fbb03cb00fa..a164543e1ff 100644
--- a/src/Dictionaries/DictionarySource.cpp
+++ b/src/Dictionaries/DictionarySource.cpp
@@ -132,7 +132,7 @@ Block DictionarySourceData::fillBlock(
         {
             ColumnPtr column;
 
-            if (dictionary_key_type == DictionaryKeyType::simple)
+            if (dictionary_key_type == DictionaryKeyType::Simple)
             {
                 column = dictionary->getColumn(
                     attribute.name,
diff --git a/src/Dictionaries/DirectDictionary.cpp b/src/Dictionaries/DirectDictionary.cpp
index eb06701ab7a..e12100a556d 100644
--- a/src/Dictionaries/DirectDictionary.cpp
+++ b/src/Dictionaries/DirectDictionary.cpp
@@ -40,7 +40,7 @@ Columns DirectDictionary<dictionary_key_type>::getColumns(
     const DataTypes & key_types [[maybe_unused]],
     const Columns & default_values_columns) const
 {
-    if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
         dict_struct.validateKeyTypes(key_types);
 
     DictionaryKeysArenaHolder<dictionary_key_type> arena_holder;
@@ -161,7 +161,7 @@ ColumnUInt8::Ptr DirectDictionary<dictionary_key_type>::hasKeys(
     const Columns & key_columns,
     const DataTypes & key_types [[maybe_unused]]) const
 {
-    if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
         dict_struct.validateKeyTypes(key_types);
 
     DictionaryKeysArenaHolder<dictionary_key_type> arena_holder;
@@ -230,7 +230,7 @@ ColumnPtr DirectDictionary<dictionary_key_type>::getHierarchy(
     ColumnPtr key_column,
     const DataTypePtr & key_type) const
 {
-    if (dictionary_key_type == DictionaryKeyType::simple)
+    if (dictionary_key_type == DictionaryKeyType::Simple)
     {
         size_t keys_found;
         auto result = getKeysHierarchyDefaultImplementation(this, key_column, key_type, keys_found);
@@ -248,7 +248,7 @@ ColumnUInt8::Ptr DirectDictionary<dictionary_key_type>::isInHierarchy(
     ColumnPtr in_key_column,
     const DataTypePtr & key_type) const
 {
-    if (dictionary_key_type == DictionaryKeyType::simple)
+    if (dictionary_key_type == DictionaryKeyType::Simple)
     {
         size_t keys_found = 0;
         auto result = getKeysIsInHierarchyDefaultImplementation(this, key_column, in_key_column, key_type, keys_found);
@@ -269,7 +269,7 @@ Pipe DirectDictionary<dictionary_key_type>::getSourceBlockInputStream(
 
     Pipe pipe;
 
-    if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
     {
         std::vector<UInt64> ids;
         ids.reserve(requested_keys_size);
@@ -310,9 +310,9 @@ namespace
         ContextPtr /* context */,
         bool /* created_from_ddl */)
     {
-        const auto * layout_name = dictionary_key_type == DictionaryKeyType::simple ? "direct" : "complex_key_direct";
+        const auto * layout_name = dictionary_key_type == DictionaryKeyType::Simple ? "direct" : "complex_key_direct";
 
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
         {
             if (dict_struct.key)
                 throw Exception(ErrorCodes::UNSUPPORTED_METHOD,
@@ -344,13 +344,13 @@ namespace
     }
 }
 
-template class DirectDictionary<DictionaryKeyType::simple>;
-template class DirectDictionary<DictionaryKeyType::complex>;
+template class DirectDictionary<DictionaryKeyType::Simple>;
+template class DirectDictionary<DictionaryKeyType::Complex>;
 
 void registerDictionaryDirect(DictionaryFactory & factory)
 {
-    factory.registerLayout("direct", createDirectDictionary<DictionaryKeyType::simple>, false);
-    factory.registerLayout("complex_key_direct", createDirectDictionary<DictionaryKeyType::complex>, true);
+    factory.registerLayout("direct", createDirectDictionary<DictionaryKeyType::Simple>, false);
+    factory.registerLayout("complex_key_direct", createDirectDictionary<DictionaryKeyType::Complex>, true);
 }
 
 
diff --git a/src/Dictionaries/DirectDictionary.h b/src/Dictionaries/DirectDictionary.h
index 4700e71d94b..ebe5f5fbbc7 100644
--- a/src/Dictionaries/DirectDictionary.h
+++ b/src/Dictionaries/DirectDictionary.h
@@ -20,8 +20,7 @@ template <DictionaryKeyType dictionary_key_type>
 class DirectDictionary final : public IDictionary
 {
 public:
-    static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by direct dictionary");
-    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     DirectDictionary(
         const StorageID & dict_id_,
@@ -30,7 +29,7 @@ public:
 
     std::string getTypeName() const override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             return "Direct";
         else
             return "ComplexKeyDirect";
@@ -110,7 +109,7 @@ private:
     mutable std::atomic<size_t> found_count{0};
 };
 
-extern template class DirectDictionary<DictionaryKeyType::simple>;
-extern template class DirectDictionary<DictionaryKeyType::complex>;
+extern template class DirectDictionary<DictionaryKeyType::Simple>;
+extern template class DirectDictionary<DictionaryKeyType::Complex>;
 
 }
diff --git a/src/Dictionaries/FlatDictionary.cpp b/src/Dictionaries/FlatDictionary.cpp
index 639895ac8ac..26667db1081 100644
--- a/src/Dictionaries/FlatDictionary.cpp
+++ b/src/Dictionaries/FlatDictionary.cpp
@@ -289,8 +289,8 @@ void FlatDictionary::blockToAttributes(const Block & block)
 {
     const auto keys_column = block.safeGetByPosition(0).column;
 
-    DictionaryKeysArenaHolder<DictionaryKeyType::simple> arena_holder;
-    DictionaryKeysExtractor<DictionaryKeyType::simple> keys_extractor({ keys_column }, arena_holder.getComplexKeyArena());
+    DictionaryKeysArenaHolder<DictionaryKeyType::Simple> arena_holder;
+    DictionaryKeysExtractor<DictionaryKeyType::Simple> keys_extractor({ keys_column }, arena_holder.getComplexKeyArena());
     auto keys = keys_extractor.extractAllKeys();
 
     HashSet<UInt64> already_processed_keys;
@@ -344,7 +344,7 @@ void FlatDictionary::updateData()
     else
     {
         Pipe pipe(source_ptr->loadUpdatedAll());
-        mergeBlockWithPipe<DictionaryKeyType::simple>(
+        mergeBlockWithPipe<DictionaryKeyType::Simple>(
             dict_struct.getKeysSize(),
             *update_field_loaded_block,
             std::move(pipe));
diff --git a/src/Dictionaries/FlatDictionary.h b/src/Dictionaries/FlatDictionary.h
index e6a07200c05..196194ddb21 100644
--- a/src/Dictionaries/FlatDictionary.h
+++ b/src/Dictionaries/FlatDictionary.h
@@ -72,7 +72,7 @@ public:
         return dict_struct.getAttribute(attribute_name).injective;
     }
 
-    DictionaryKeyType getKeyType() const override { return DictionaryKeyType::simple; }
+    DictionaryKeyType getKeyType() const override { return DictionaryKeyType::Simple; }
 
     ColumnPtr getColumn(
         const std::string& attribute_name,
diff --git a/src/Dictionaries/HashedDictionary.cpp b/src/Dictionaries/HashedDictionary.cpp
index 189994dabf4..d462631fba8 100644
--- a/src/Dictionaries/HashedDictionary.cpp
+++ b/src/Dictionaries/HashedDictionary.cpp
@@ -61,7 +61,7 @@ ColumnPtr HashedDictionary<dictionary_key_type, sparse>::getColumn(
     const DataTypes & key_types [[maybe_unused]],
     const ColumnPtr & default_values_column) const
 {
-    if (dictionary_key_type == DictionaryKeyType::complex)
+    if (dictionary_key_type == DictionaryKeyType::Complex)
         dict_struct.validateKeyTypes(key_types);
 
     ColumnPtr result;
@@ -163,7 +163,7 @@ ColumnPtr HashedDictionary<dictionary_key_type, sparse>::getColumn(
 template <DictionaryKeyType dictionary_key_type, bool sparse>
 ColumnUInt8::Ptr HashedDictionary<dictionary_key_type, sparse>::hasKeys(const Columns & key_columns, const DataTypes & key_types) const
 {
-    if (dictionary_key_type == DictionaryKeyType::complex)
+    if (dictionary_key_type == DictionaryKeyType::Complex)
         dict_struct.validateKeyTypes(key_types);
 
     DictionaryKeysArenaHolder<dictionary_key_type> arena_holder;
@@ -210,7 +210,7 @@ ColumnUInt8::Ptr HashedDictionary<dictionary_key_type, sparse>::hasKeys(const Co
 template <DictionaryKeyType dictionary_key_type, bool sparse>
 ColumnPtr HashedDictionary<dictionary_key_type, sparse>::getHierarchy(ColumnPtr key_column [[maybe_unused]], const DataTypePtr &) const
 {
-    if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
     {
         PaddedPODArray<UInt64> keys_backup_storage;
         const auto & keys = getColumnVectorData(this, key_column, keys_backup_storage);
@@ -258,7 +258,7 @@ ColumnUInt8::Ptr HashedDictionary<dictionary_key_type, sparse>::isInHierarchy(
     ColumnPtr in_key_column [[maybe_unused]],
     const DataTypePtr &) const
 {
-    if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
     {
         PaddedPODArray<UInt64> keys_backup_storage;
         const auto & keys = getColumnVectorData(this, key_column, keys_backup_storage);
@@ -309,7 +309,7 @@ ColumnPtr HashedDictionary<dictionary_key_type, sparse>::getDescendants(
     const DataTypePtr &,
     size_t level [[maybe_unused]]) const
 {
-    if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
     {
         PaddedPODArray<UInt64> keys_backup;
         const auto & keys = getColumnVectorData(this, key_column, keys_backup);
@@ -665,7 +665,7 @@ Pipe HashedDictionary<dictionary_key_type, sparse>::read(const Names & column_na
         });
     }
 
-    if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
         return Pipe(std::make_shared<DictionarySource>(DictionarySourceData(shared_from_this(), std::move(keys), column_names), max_block_size));
     else
         return Pipe(std::make_shared<DictionarySource>(DictionarySourceData(shared_from_this(), keys, column_names), max_block_size));
@@ -702,10 +702,10 @@ void HashedDictionary<dictionary_key_type, sparse>::getAttributeContainer(size_t
     });
 }
 
-template class HashedDictionary<DictionaryKeyType::simple, true>;
-template class HashedDictionary<DictionaryKeyType::simple, false>;
-template class HashedDictionary<DictionaryKeyType::complex, true>;
-template class HashedDictionary<DictionaryKeyType::complex, false>;
+template class HashedDictionary<DictionaryKeyType::Simple, true>;
+template class HashedDictionary<DictionaryKeyType::Simple, false>;
+template class HashedDictionary<DictionaryKeyType::Complex, true>;
+template class HashedDictionary<DictionaryKeyType::Complex, false>;
 
 void registerDictionaryHashed(DictionaryFactory & factory)
 {
@@ -717,9 +717,9 @@ void registerDictionaryHashed(DictionaryFactory & factory)
                              DictionaryKeyType dictionary_key_type,
                              bool sparse) -> DictionaryPtr
     {
-        if (dictionary_key_type == DictionaryKeyType::simple && dict_struct.key)
+        if (dictionary_key_type == DictionaryKeyType::Simple && dict_struct.key)
             throw Exception(ErrorCodes::UNSUPPORTED_METHOD, "'key' is not supported for simple key hashed dictionary");
-        else if (dictionary_key_type == DictionaryKeyType::complex && dict_struct.id)
+        else if (dictionary_key_type == DictionaryKeyType::Complex && dict_struct.id)
             throw Exception(ErrorCodes::UNSUPPORTED_METHOD, "'id' is not supported for complex key hashed dictionary");
 
         if (dict_struct.range_min || dict_struct.range_max)
@@ -737,32 +737,32 @@ void registerDictionaryHashed(DictionaryFactory & factory)
 
         HashedDictionaryStorageConfiguration configuration{preallocate, require_nonempty, dict_lifetime};
 
-        if (dictionary_key_type == DictionaryKeyType::simple)
+        if (dictionary_key_type == DictionaryKeyType::Simple)
         {
             if (sparse)
-                return std::make_unique<HashedDictionary<DictionaryKeyType::simple, true>>(dict_id, dict_struct, std::move(source_ptr), configuration);
+                return std::make_unique<HashedDictionary<DictionaryKeyType::Simple, true>>(dict_id, dict_struct, std::move(source_ptr), configuration);
             else
-                return std::make_unique<HashedDictionary<DictionaryKeyType::simple, false>>(dict_id, dict_struct, std::move(source_ptr), configuration);
+                return std::make_unique<HashedDictionary<DictionaryKeyType::Simple, false>>(dict_id, dict_struct, std::move(source_ptr), configuration);
         }
         else
         {
             if (sparse)
-                return std::make_unique<HashedDictionary<DictionaryKeyType::complex, true>>(dict_id, dict_struct, std::move(source_ptr), configuration);
+                return std::make_unique<HashedDictionary<DictionaryKeyType::Complex, true>>(dict_id, dict_struct, std::move(source_ptr), configuration);
             else
-                return std::make_unique<HashedDictionary<DictionaryKeyType::complex, false>>(dict_id, dict_struct, std::move(source_ptr), configuration);
+                return std::make_unique<HashedDictionary<DictionaryKeyType::Complex, false>>(dict_id, dict_struct, std::move(source_ptr), configuration);
         }
     };
 
     using namespace std::placeholders;
 
     factory.registerLayout("hashed",
-        [=](auto && a, auto && b, auto && c, auto && d, DictionarySourcePtr e, ContextPtr /* context */, bool /*created_from_ddl*/){ return create_layout(a, b, c, d, std::move(e), DictionaryKeyType::simple, /* sparse = */ false); }, false);
+        [=](auto && a, auto && b, auto && c, auto && d, DictionarySourcePtr e, ContextPtr /* context */, bool /*created_from_ddl*/){ return create_layout(a, b, c, d, std::move(e), DictionaryKeyType::Simple, /* sparse = */ false); }, false);
     factory.registerLayout("sparse_hashed",
-        [=](auto && a, auto && b, auto && c, auto && d, DictionarySourcePtr e, ContextPtr /* context */, bool /*created_from_ddl*/){ return create_layout(a, b, c, d, std::move(e), DictionaryKeyType::simple, /* sparse = */ true); }, false);
+        [=](auto && a, auto && b, auto && c, auto && d, DictionarySourcePtr e, ContextPtr /* context */, bool /*created_from_ddl*/){ return create_layout(a, b, c, d, std::move(e), DictionaryKeyType::Simple, /* sparse = */ true); }, false);
     factory.registerLayout("complex_key_hashed",
-        [=](auto && a, auto && b, auto && c, auto && d, DictionarySourcePtr e, ContextPtr /* context */, bool /*created_from_ddl*/){ return create_layout(a, b, c, d, std::move(e), DictionaryKeyType::complex, /* sparse = */ false); }, true);
+        [=](auto && a, auto && b, auto && c, auto && d, DictionarySourcePtr e, ContextPtr /* context */, bool /*created_from_ddl*/){ return create_layout(a, b, c, d, std::move(e), DictionaryKeyType::Complex, /* sparse = */ false); }, true);
     factory.registerLayout("complex_key_sparse_hashed",
-        [=](auto && a, auto && b, auto && c, auto && d, DictionarySourcePtr e, ContextPtr /* context */, bool /*created_from_ddl*/){ return create_layout(a, b, c, d, std::move(e), DictionaryKeyType::complex, /* sparse = */ true); }, true);
+        [=](auto && a, auto && b, auto && c, auto && d, DictionarySourcePtr e, ContextPtr /* context */, bool /*created_from_ddl*/){ return create_layout(a, b, c, d, std::move(e), DictionaryKeyType::Complex, /* sparse = */ true); }, true);
 
 }
 
diff --git a/src/Dictionaries/HashedDictionary.h b/src/Dictionaries/HashedDictionary.h
index bf58638effc..d1e1f681fa1 100644
--- a/src/Dictionaries/HashedDictionary.h
+++ b/src/Dictionaries/HashedDictionary.h
@@ -35,8 +35,7 @@ template <DictionaryKeyType dictionary_key_type, bool sparse>
 class HashedDictionary final : public IDictionary
 {
 public:
-    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
-    static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by hashed dictionary");
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     HashedDictionary(
         const StorageID & dict_id_,
@@ -47,11 +46,11 @@ public:
 
     std::string getTypeName() const override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple && sparse)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple && sparse)
             return "SparseHashed";
-        else if constexpr (dictionary_key_type == DictionaryKeyType::simple && !sparse)
+        else if constexpr (dictionary_key_type == DictionaryKeyType::Simple && !sparse)
             return "Hashed";
-        else if constexpr (dictionary_key_type == DictionaryKeyType::complex && sparse)
+        else if constexpr (dictionary_key_type == DictionaryKeyType::Complex && sparse)
             return "ComplexKeySparseHashed";
         else
             return "ComplexKeyHashed";
@@ -102,7 +101,7 @@ public:
 
     ColumnUInt8::Ptr hasKeys(const Columns & key_columns, const DataTypes & key_types) const override;
 
-    bool hasHierarchy() const override { return dictionary_key_type == DictionaryKeyType::simple && dict_struct.hierarchical_attribute_index.has_value(); }
+    bool hasHierarchy() const override { return dictionary_key_type == DictionaryKeyType::Simple && dict_struct.hierarchical_attribute_index.has_value(); }
 
     ColumnPtr getHierarchy(ColumnPtr key_column, const DataTypePtr & hierarchy_attribute_type) const override;
 
@@ -121,13 +120,13 @@ public:
 private:
     template <typename Value>
     using CollectionTypeNonSparse = std::conditional_t<
-        dictionary_key_type == DictionaryKeyType::simple,
+        dictionary_key_type == DictionaryKeyType::Simple,
         HashMap<UInt64, Value>,
         HashMapWithSavedHash<StringRef, Value, DefaultHash<StringRef>>>;
 
     template <typename Value>
     using CollectionTypeSparse = std::conditional_t<
-        dictionary_key_type == DictionaryKeyType::simple,
+        dictionary_key_type == DictionaryKeyType::Simple,
         SparseHashMap<UInt64, Value>,
         SparseHashMap<StringRef, Value>>;
 
@@ -211,10 +210,10 @@ private:
     Arena complex_key_arena;
 };
 
-extern template class HashedDictionary<DictionaryKeyType::simple, false>;
-extern template class HashedDictionary<DictionaryKeyType::simple, true>;
+extern template class HashedDictionary<DictionaryKeyType::Simple, false>;
+extern template class HashedDictionary<DictionaryKeyType::Simple, true>;
 
-extern template class HashedDictionary<DictionaryKeyType::complex, false>;
-extern template class HashedDictionary<DictionaryKeyType::complex, true>;
+extern template class HashedDictionary<DictionaryKeyType::Complex, false>;
+extern template class HashedDictionary<DictionaryKeyType::Complex, true>;
 
 }
diff --git a/src/Dictionaries/IDictionary.h b/src/Dictionaries/IDictionary.h
index f9e0223a698..d7778cc0022 100644
--- a/src/Dictionaries/IDictionary.h
+++ b/src/Dictionaries/IDictionary.h
@@ -33,15 +33,20 @@ using DictionaryPtr = std::unique_ptr<IDictionary>;
   * Simple is for dictionaries that support UInt64 key column.
   *
   * Complex is for dictionaries that support any combination of key columns.
-  *
-  * Range is for dictionary that support combination of UInt64 key column,
-  * and numeric representable range key column.
   */
 enum class DictionaryKeyType
 {
-    simple,
-    complex,
-    range
+    Simple,
+    Complex
+};
+
+/** DictionarySpecialKeyType provides IDictionary client information about
+  * which special key type is supported by dictionary.
+  */
+enum class DictionarySpecialKeyType
+{
+    None,
+    Range
 };
 
 /**
@@ -56,6 +61,7 @@ struct IDictionary : public IExternalLoadable
     }
 
     const std::string & getFullName() const{ return full_name; }
+
     StorageID getDictionaryID() const
     {
         std::lock_guard lock{name_mutex};
@@ -109,6 +115,8 @@ struct IDictionary : public IExternalLoadable
       */
     virtual DictionaryKeyType getKeyType() const = 0;
 
+    virtual DictionarySpecialKeyType getSpecialKeyType() const { return DictionarySpecialKeyType::None;}
+
     /** Subclass must validate key columns and keys types
       * and return column representation of dictionary attribute.
       *
diff --git a/src/Dictionaries/IPAddressDictionary.h b/src/Dictionaries/IPAddressDictionary.h
index af4b77a6ff8..4aba70dd14f 100644
--- a/src/Dictionaries/IPAddressDictionary.h
+++ b/src/Dictionaries/IPAddressDictionary.h
@@ -67,7 +67,7 @@ public:
         return dict_struct.getAttribute(attribute_name).injective;
     }
 
-    DictionaryKeyType getKeyType() const override { return DictionaryKeyType::complex; }
+    DictionaryKeyType getKeyType() const override { return DictionaryKeyType::Complex; }
 
     ColumnPtr getColumn(
         const std::string& attribute_name,
diff --git a/src/Dictionaries/PolygonDictionary.h b/src/Dictionaries/PolygonDictionary.h
index 32771be4b16..9ab82890c49 100644
--- a/src/Dictionaries/PolygonDictionary.h
+++ b/src/Dictionaries/PolygonDictionary.h
@@ -86,7 +86,7 @@ public:
 
     bool isInjective(const std::string & attribute_name) const override { return dict_struct.getAttribute(attribute_name).injective; }
 
-    DictionaryKeyType getKeyType() const override { return DictionaryKeyType::complex; }
+    DictionaryKeyType getKeyType() const override { return DictionaryKeyType::Complex; }
 
     ColumnPtr getColumn(
         const std::string& attribute_name,
diff --git a/src/Dictionaries/RangeDictionarySource.h b/src/Dictionaries/RangeDictionarySource.h
index 252ab97ac74..dcc5b1ea3b8 100644
--- a/src/Dictionaries/RangeDictionarySource.h
+++ b/src/Dictionaries/RangeDictionarySource.h
@@ -14,18 +14,12 @@
 namespace DB
 {
 
-enum class RangeDictionaryType
-{
-    simple,
-    complex
-};
-
-template <RangeDictionaryType range_dictionary_type, typename RangeType>
+template <DictionaryKeyType dictionary_key_type, typename RangeType>
 class RangeDictionarySourceData
 {
 public:
 
-    using KeyType = std::conditional_t<range_dictionary_type == RangeDictionaryType::simple, UInt64, StringRef>;
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     RangeDictionarySourceData(
         std::shared_ptr<const IDictionary> dictionary,
@@ -58,8 +52,8 @@ private:
 };
 
 
-template <RangeDictionaryType range_dictionary_type, typename RangeType>
-RangeDictionarySourceData<range_dictionary_type, RangeType>::RangeDictionarySourceData(
+template <DictionaryKeyType dictionary_key_type, typename RangeType>
+RangeDictionarySourceData<dictionary_key_type, RangeType>::RangeDictionarySourceData(
     std::shared_ptr<const IDictionary> dictionary_,
     const Names & column_names_,
     PaddedPODArray<KeyType> && keys,
@@ -73,8 +67,8 @@ RangeDictionarySourceData<range_dictionary_type, RangeType>::RangeDictionarySour
 {
 }
 
-template <RangeDictionaryType range_dictionary_type, typename RangeType>
-Block RangeDictionarySourceData<range_dictionary_type, RangeType>::getBlock(size_t start, size_t length) const
+template <DictionaryKeyType dictionary_key_type, typename RangeType>
+Block RangeDictionarySourceData<dictionary_key_type, RangeType>::getBlock(size_t start, size_t length) const
 {
     PaddedPODArray<KeyType> block_keys;
     PaddedPODArray<RangeType> block_start_dates;
@@ -93,8 +87,8 @@ Block RangeDictionarySourceData<range_dictionary_type, RangeType>::getBlock(size
     return fillBlock(block_keys, block_start_dates, block_end_dates, start, start + length);
 }
 
-template <RangeDictionaryType range_dictionary_type, typename RangeType>
-PaddedPODArray<Int64> RangeDictionarySourceData<range_dictionary_type, RangeType>::makeDateKeys(
+template <DictionaryKeyType dictionary_key_type, typename RangeType>
+PaddedPODArray<Int64> RangeDictionarySourceData<dictionary_key_type, RangeType>::makeDateKeys(
     const PaddedPODArray<RangeType> & block_start_dates,
     const PaddedPODArray<RangeType> & block_end_dates) const
 {
@@ -112,24 +106,14 @@ PaddedPODArray<Int64> RangeDictionarySourceData<range_dictionary_type, RangeType
 }
 
 
-template <RangeDictionaryType range_dictionary_type, typename RangeType>
-Block RangeDictionarySourceData<range_dictionary_type, RangeType>::fillBlock(
+template <DictionaryKeyType dictionary_key_type, typename RangeType>
+Block RangeDictionarySourceData<dictionary_key_type, RangeType>::fillBlock(
     const PaddedPODArray<KeyType> & keys_to_fill,
     const PaddedPODArray<RangeType> & block_start_dates,
     const PaddedPODArray<RangeType> & block_end_dates,
     size_t start,
     size_t end) const
 {
-    std::cerr << "RangeDictionarySourceData::fillBlock keys_to_fill " << keys_to_fill.size() << std::endl;
-
-    if constexpr (range_dictionary_type == RangeDictionaryType::simple)
-    {
-        for (auto & key : keys_to_fill)
-        {
-            std::cerr << key << std::endl;
-        }
-    }
-
     ColumnsWithTypeAndName columns;
     const DictionaryStructure & dictionary_structure = dictionary->getStructure();
 
@@ -137,7 +121,7 @@ Block RangeDictionarySourceData<range_dictionary_type, RangeType>::fillBlock(
     Columns keys_columns;
     Strings keys_names = dictionary_structure.getKeysNames();
 
-    if constexpr (range_dictionary_type == RangeDictionaryType::simple)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
     {
         keys_columns = {getColumnFromPODArray(keys_to_fill)};
         keys_types = {std::make_shared<DataTypeUInt64>()};
@@ -154,9 +138,6 @@ Block RangeDictionarySourceData<range_dictionary_type, RangeType>::fillBlock(
 
     size_t keys_size = keys_names.size();
 
-    std::cerr << "Keys size " << keys_size << " key columns size " << keys_columns.size();
-    std::cerr << " keys types size " << keys_types.size() << std::endl;
-
     assert(keys_columns.size() == keys_size);
     assert(keys_types.size() == keys_size);
 
@@ -204,51 +185,33 @@ Block RangeDictionarySourceData<range_dictionary_type, RangeType>::fillBlock(
         columns.emplace_back(std::move(column), attribute.type, attribute.name);
     }
 
-    auto result = Block(columns);
-
-    Field value;
-    std::cerr << "RangeDictionarySourceData::fillBlock result" << std::endl;
-    for (auto & block_column : result)
-    {
-        std::cerr << "Column name " << block_column.name << " type " << block_column.type->getName() << std::endl;
-
-        auto & column = block_column.column;
-        size_t column_size = column->size();
-
-        for (size_t i = 0; i < column_size; ++i)
-        {
-            column->get(i, value);
-            std::cerr << "Index " << i << " value " << value.dump() << std::endl;
-        }
-    }
-
     return Block(columns);
 }
 
-template <RangeDictionaryType range_dictionary_type, typename RangeType>
+template <DictionaryKeyType dictionary_key_type, typename RangeType>
 class RangeDictionarySource : public DictionarySourceBase
 {
 public:
 
-    RangeDictionarySource(RangeDictionarySourceData<range_dictionary_type, RangeType> data_, size_t max_block_size);
+    RangeDictionarySource(RangeDictionarySourceData<dictionary_key_type, RangeType> data_, size_t max_block_size);
 
     String getName() const override { return "RangeDictionarySource"; }
 
 protected:
     Block getBlock(size_t start, size_t length) const override;
 
-    RangeDictionarySourceData<range_dictionary_type, RangeType> data;
+    RangeDictionarySourceData<dictionary_key_type, RangeType> data;
 };
 
-template <RangeDictionaryType range_dictionary_type, typename RangeType>
-RangeDictionarySource<range_dictionary_type, RangeType>::RangeDictionarySource(RangeDictionarySourceData<range_dictionary_type, RangeType> data_, size_t max_block_size)
+template <DictionaryKeyType dictionary_key_type, typename RangeType>
+RangeDictionarySource<dictionary_key_type, RangeType>::RangeDictionarySource(RangeDictionarySourceData<dictionary_key_type, RangeType> data_, size_t max_block_size)
     : DictionarySourceBase(data_.getBlock(0, 0), data_.getNumRows(), max_block_size)
     , data(std::move(data_))
 {
 }
 
-template <RangeDictionaryType range_dictionary_type, typename RangeType>
-Block RangeDictionarySource<range_dictionary_type, RangeType>::getBlock(size_t start, size_t length) const
+template <DictionaryKeyType dictionary_key_type, typename RangeType>
+Block RangeDictionarySource<dictionary_key_type, RangeType>::getBlock(size_t start, size_t length) const
 {
     return data.getBlock(start, length);
 }
diff --git a/src/Dictionaries/RangeHashedDictionary.cpp b/src/Dictionaries/RangeHashedDictionary.cpp
index 50935163a96..ea0af493bdf 100644
--- a/src/Dictionaries/RangeHashedDictionary.cpp
+++ b/src/Dictionaries/RangeHashedDictionary.cpp
@@ -95,6 +95,13 @@ ColumnPtr RangeHashedDictionary<dictionary_key_type>::getColumn(
     const DataTypes & key_types,
     const ColumnPtr & default_values_column) const
 {
+    if (dictionary_key_type == DictionaryKeyType::Complex)
+    {
+        auto key_types_copy = key_types;
+        key_types_copy.pop_back();
+        dict_struct.validateKeyTypes(key_types_copy);
+    }
+
     ColumnPtr result;
 
     const auto & dictionary_attribute = dict_struct.getAttribute(attribute_name, result_type);
@@ -206,9 +213,15 @@ ColumnPtr RangeHashedDictionary<dictionary_key_type>::getColumn(
 template <DictionaryKeyType dictionary_key_type>
 ColumnUInt8::Ptr RangeHashedDictionary<dictionary_key_type>::hasKeys(const Columns & key_columns, const DataTypes & key_types) const
 {
+    if (dictionary_key_type == DictionaryKeyType::Complex)
+    {
+        auto key_types_copy = key_types;
+        key_types_copy.pop_back();
+        dict_struct.validateKeyTypes(key_types_copy);
+    }
     auto range_column_storage_type = std::make_shared<DataTypeInt64>();
     auto range_storage_column = key_columns.back();
-    ColumnWithTypeAndName column_to_cast = {range_storage_column->convertToFullColumnIfConst(), key_types[1], ""};
+    ColumnWithTypeAndName column_to_cast = {range_storage_column->convertToFullColumnIfConst(), key_types.back(), ""};
     auto range_column_updated = castColumnAccurate(column_to_cast, range_column_storage_type);
     PaddedPODArray<RangeStorageType> range_backup_storage;
     const PaddedPODArray<RangeStorageType> & dates = getColumnVectorData(this, range_column_updated, range_backup_storage);
@@ -383,7 +396,7 @@ void RangeHashedDictionary<dictionary_key_type>::calculateBytesAllocated()
         callOnDictionaryAttributeType(attribute.type, type_call);
     }
 
-    if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
         bytes_allocated += complex_key_arena.size();
 }
 
@@ -607,10 +620,9 @@ Pipe RangeHashedDictionary<dictionary_key_type>::readImpl(const Names & column_n
     PaddedPODArray<RangeType> end_dates;
     getKeysAndDates(keys, start_dates, end_dates);
 
-    static constexpr RangeDictionaryType range_dictionary_type = (dictionary_key_type == DictionaryKeyType::simple) ? RangeDictionaryType::simple : RangeDictionaryType::complex;
-    using RangeDictionarySourceType = RangeDictionarySource<range_dictionary_type, RangeType>;
+    using RangeDictionarySourceType = RangeDictionarySource<dictionary_key_type, RangeType>;
 
-    auto source_data = RangeDictionarySourceData<range_dictionary_type, RangeType>(
+    auto source_data = RangeDictionarySourceData<dictionary_key_type, RangeType>(
         shared_from_this(),
         column_names,
         std::move(keys),
@@ -690,7 +702,7 @@ void registerDictionaryRangeHashed(DictionaryFactory & factory)
         const auto dict_id = StorageID::fromDictionaryConfig(config, config_prefix);
         const DictionaryLifetime dict_lifetime{config, config_prefix + ".lifetime"};
         const bool require_nonempty = config.getBool(config_prefix + ".require_nonempty", false);
-        return std::make_unique<RangeHashedDictionary<DictionaryKeyType::simple>>(dict_id, dict_struct, std::move(source_ptr), dict_lifetime, require_nonempty);
+        return std::make_unique<RangeHashedDictionary<DictionaryKeyType::Simple>>(dict_id, dict_struct, std::move(source_ptr), dict_lifetime, require_nonempty);
     };
     factory.registerLayout("range_hashed", create_layout_simple, false);
 
@@ -713,7 +725,7 @@ void registerDictionaryRangeHashed(DictionaryFactory & factory)
         const auto dict_id = StorageID::fromDictionaryConfig(config, config_prefix);
         const DictionaryLifetime dict_lifetime{config, config_prefix + ".lifetime"};
         const bool require_nonempty = config.getBool(config_prefix + ".require_nonempty", false);
-        return std::make_unique<RangeHashedDictionary<DictionaryKeyType::complex>>(dict_id, dict_struct, std::move(source_ptr), dict_lifetime, require_nonempty);
+        return std::make_unique<RangeHashedDictionary<DictionaryKeyType::Complex>>(dict_id, dict_struct, std::move(source_ptr), dict_lifetime, require_nonempty);
     };
     factory.registerLayout("complex_key_range_hashed", create_layout_complex, true);
 }
diff --git a/src/Dictionaries/RangeHashedDictionary.h b/src/Dictionaries/RangeHashedDictionary.h
index f9b09189265..4cdab66a0e4 100644
--- a/src/Dictionaries/RangeHashedDictionary.h
+++ b/src/Dictionaries/RangeHashedDictionary.h
@@ -32,8 +32,7 @@ template <DictionaryKeyType dictionary_key_type>
 class RangeHashedDictionary final : public IDictionary
 {
 public:
-    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
-    static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by hashed dictionary");
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     RangeHashedDictionary(
         const StorageID & dict_id_,
@@ -78,7 +77,9 @@ public:
         return dict_struct.getAttribute(attribute_name).injective;
     }
 
-    DictionaryKeyType getKeyType() const override { return DictionaryKeyType::range; }
+    DictionaryKeyType getKeyType() const override { return dictionary_key_type; }
+
+    DictionarySpecialKeyType getSpecialKeyType() const override { return DictionarySpecialKeyType::Range;}
 
     ColumnPtr getColumn(
         const std::string& attribute_name,
@@ -104,7 +105,7 @@ private:
 
     template <typename Value>
     using CollectionType = std::conditional_t<
-        dictionary_key_type == DictionaryKeyType::simple,
+        dictionary_key_type == DictionaryKeyType::Simple,
         HashMap<UInt64, Values<Value>>,
         HashMapWithSavedHash<StringRef, Values<Value>, DefaultHash<StringRef>>>;
 
diff --git a/src/Dictionaries/SSDCacheDictionaryStorage.h b/src/Dictionaries/SSDCacheDictionaryStorage.h
index bdb640c90be..e584b523376 100644
--- a/src/Dictionaries/SSDCacheDictionaryStorage.h
+++ b/src/Dictionaries/SSDCacheDictionaryStorage.h
@@ -823,8 +823,8 @@ template <DictionaryKeyType dictionary_key_type>
 class SSDCacheDictionaryStorage final : public ICacheDictionaryStorage
 {
 public:
-    using SSDCacheKeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, SSDCacheSimpleKey, SSDCacheComplexKey>;
-    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::simple, UInt64, StringRef>;
+    using SSDCacheKeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, SSDCacheSimpleKey, SSDCacheComplexKey>;
+    using KeyType = std::conditional_t<dictionary_key_type == DictionaryKeyType::Simple, UInt64, StringRef>;
 
     explicit SSDCacheDictionaryStorage(const SSDCacheDictionaryStorageConfiguration & configuration_)
         : configuration(configuration_)
@@ -838,19 +838,19 @@ public:
 
     String getName() const override
     {
-        if (dictionary_key_type == DictionaryKeyType::simple)
+        if (dictionary_key_type == DictionaryKeyType::Simple)
             return "SSDCache";
         else
             return "SSDComplexKeyCache";
     }
 
-    bool supportsSimpleKeys() const override { return dictionary_key_type == DictionaryKeyType::simple; }
+    bool supportsSimpleKeys() const override { return dictionary_key_type == DictionaryKeyType::Simple; }
 
     SimpleKeysStorageFetchResult fetchColumnsForKeys(
         const PaddedPODArray<UInt64> & keys,
         const DictionaryStorageFetchRequest & fetch_request) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             return fetchColumnsForKeysImpl<SimpleKeysStorageFetchResult>(keys, fetch_request);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertColumnsForKeys is not supported for complex key storage");
@@ -858,7 +858,7 @@ public:
 
     void insertColumnsForKeys(const PaddedPODArray<UInt64> & keys, Columns columns) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             insertColumnsForKeysImpl(keys, columns);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertColumnsForKeys is not supported for complex key storage");
@@ -866,7 +866,7 @@ public:
 
     void insertDefaultKeys(const PaddedPODArray<UInt64> & keys) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             insertDefaultKeysImpl(keys);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertDefaultKeysImpl is not supported for complex key storage");
@@ -874,19 +874,19 @@ public:
 
     PaddedPODArray<UInt64> getCachedSimpleKeys() const override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
             return getCachedKeysImpl();
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method getCachedSimpleKeys is not supported for complex key storage");
     }
 
-    bool supportsComplexKeys() const override { return dictionary_key_type == DictionaryKeyType::complex; }
+    bool supportsComplexKeys() const override { return dictionary_key_type == DictionaryKeyType::Complex; }
 
     ComplexKeysStorageFetchResult fetchColumnsForKeys(
         const PaddedPODArray<StringRef> & keys,
         const DictionaryStorageFetchRequest & fetch_request) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             return fetchColumnsForKeysImpl<ComplexKeysStorageFetchResult>(keys, fetch_request);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method fetchColumnsForKeys is not supported for simple key storage");
@@ -894,7 +894,7 @@ public:
 
     void insertColumnsForKeys(const PaddedPODArray<StringRef> & keys, Columns columns) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             insertColumnsForKeysImpl(keys, columns);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertColumnsForKeys is not supported for simple key storage");
@@ -902,7 +902,7 @@ public:
 
     void insertDefaultKeys(const PaddedPODArray<StringRef> & keys) override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             insertDefaultKeysImpl(keys);
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method insertDefaultKeysImpl is not supported for simple key storage");
@@ -910,7 +910,7 @@ public:
 
     PaddedPODArray<StringRef> getCachedComplexKeys() const override
     {
-        if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+        if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             return getCachedKeysImpl();
         else
             throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Method getCachedSimpleKeys is not supported for simple key storage");
@@ -1134,7 +1134,7 @@ private:
             Cell cell;
             setCellDeadline(cell, now);
 
-            if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+            if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             {
                 /// Copy complex key into arena and put in cache
                 size_t key_size = key.size;
@@ -1166,7 +1166,7 @@ private:
             cell.state = Cell::default_value;
 
 
-            if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+            if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
             {
                 /// Copy complex key into arena and put in cache
                 size_t key_size = key.size;
@@ -1382,7 +1382,7 @@ private:
     using ComplexKeyHashMap = HashMapWithSavedHash<StringRef, Cell>;
 
     using CacheMap = std::conditional_t<
-        dictionary_key_type == DictionaryKeyType::simple,
+        dictionary_key_type == DictionaryKeyType::Simple,
         SimpleKeyHashMap,
         ComplexKeyHashMap>;
 
diff --git a/src/Dictionaries/registerCacheDictionaries.cpp b/src/Dictionaries/registerCacheDictionaries.cpp
index d039c5b6630..64c1c55e0ba 100644
--- a/src/Dictionaries/registerCacheDictionaries.cpp
+++ b/src/Dictionaries/registerCacheDictionaries.cpp
@@ -157,24 +157,23 @@ DictionaryPtr createCacheDictionaryLayout(
     ContextPtr context [[maybe_unused]],
     bool created_from_ddl [[maybe_unused]])
 {
-    static_assert(dictionary_key_type != DictionaryKeyType::range, "Range key type is not supported by CacheDictionary");
-
     String layout_type;
-    if constexpr (dictionary_key_type == DictionaryKeyType::simple && !ssd)
+
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple && !ssd)
         layout_type = "cache";
-    else if constexpr (dictionary_key_type == DictionaryKeyType::simple && ssd)
+    else if constexpr (dictionary_key_type == DictionaryKeyType::Simple && ssd)
         layout_type = "ssd_cache";
-    else if constexpr (dictionary_key_type == DictionaryKeyType::complex && !ssd)
+    else if constexpr (dictionary_key_type == DictionaryKeyType::Complex && !ssd)
         layout_type = "complex_key_cache";
-    else if constexpr (dictionary_key_type == DictionaryKeyType::complex && ssd)
+    else if constexpr (dictionary_key_type == DictionaryKeyType::Complex && ssd)
         layout_type = "complex_key_ssd_cache";
 
-    if constexpr (dictionary_key_type == DictionaryKeyType::simple)
+    if constexpr (dictionary_key_type == DictionaryKeyType::Simple)
     {
         if (dict_struct.key)
             throw Exception(ErrorCodes::UNSUPPORTED_METHOD, "{}: dictionary of layout '{}' 'key' is not supported", full_name, layout_type);
     }
-    else if constexpr (dictionary_key_type == DictionaryKeyType::complex)
+    else if constexpr (dictionary_key_type == DictionaryKeyType::Complex)
     {
         if (dict_struct.id)
             throw Exception(ErrorCodes::UNSUPPORTED_METHOD, "{}: dictionary of layout '{}' 'id' is not supported", full_name, layout_type);
@@ -243,7 +242,7 @@ void registerDictionaryCache(DictionaryFactory & factory)
                                           ContextPtr context,
                                           bool created_from_ddl) -> DictionaryPtr
     {
-        return createCacheDictionaryLayout<DictionaryKeyType::simple, false/* ssd */>(full_name, dict_struct, config, config_prefix, std::move(source_ptr), std::move(context), created_from_ddl);
+        return createCacheDictionaryLayout<DictionaryKeyType::Simple, false/* ssd */>(full_name, dict_struct, config, config_prefix, std::move(source_ptr), std::move(context), created_from_ddl);
     };
 
     factory.registerLayout("cache", create_simple_cache_layout, false);
@@ -256,7 +255,7 @@ void registerDictionaryCache(DictionaryFactory & factory)
                                                ContextPtr context,
                                                bool created_from_ddl) -> DictionaryPtr
     {
-        return createCacheDictionaryLayout<DictionaryKeyType::complex, false /* ssd */>(full_name, dict_struct, config, config_prefix, std::move(source_ptr), std::move(context), created_from_ddl);
+        return createCacheDictionaryLayout<DictionaryKeyType::Complex, false /* ssd */>(full_name, dict_struct, config, config_prefix, std::move(source_ptr), std::move(context), created_from_ddl);
     };
 
     factory.registerLayout("complex_key_cache", create_complex_key_cache_layout, true);
@@ -271,7 +270,7 @@ void registerDictionaryCache(DictionaryFactory & factory)
                                               ContextPtr context,
                                               bool created_from_ddl) -> DictionaryPtr
     {
-        return createCacheDictionaryLayout<DictionaryKeyType::simple, true /* ssd */>(full_name, dict_struct, config, config_prefix, std::move(source_ptr), std::move(context), created_from_ddl);
+        return createCacheDictionaryLayout<DictionaryKeyType::Simple, true /* ssd */>(full_name, dict_struct, config, config_prefix, std::move(source_ptr), std::move(context), created_from_ddl);
     };
 
     factory.registerLayout("ssd_cache", create_simple_ssd_cache_layout, false);
@@ -283,7 +282,7 @@ void registerDictionaryCache(DictionaryFactory & factory)
                                                    DictionarySourcePtr source_ptr,
                                                    ContextPtr context,
                                                    bool created_from_ddl) -> DictionaryPtr {
-        return createCacheDictionaryLayout<DictionaryKeyType::complex, true /* ssd */>(full_name, dict_struct, config, config_prefix, std::move(source_ptr), std::move(context), created_from_ddl);
+        return createCacheDictionaryLayout<DictionaryKeyType::Complex, true /* ssd */>(full_name, dict_struct, config, config_prefix, std::move(source_ptr), std::move(context), created_from_ddl);
     };
 
     factory.registerLayout("complex_key_ssd_cache", create_complex_key_ssd_cache_layout, true);
diff --git a/src/Functions/FunctionsExternalDictionaries.h b/src/Functions/FunctionsExternalDictionaries.h
index 02af528723c..5f94a1e1f4b 100644
--- a/src/Functions/FunctionsExternalDictionaries.h
+++ b/src/Functions/FunctionsExternalDictionaries.h
@@ -42,7 +42,6 @@ namespace ErrorCodes
     extern const int UNSUPPORTED_METHOD;
     extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
     extern const int ILLEGAL_COLUMN;
-    extern const int BAD_ARGUMENTS;
     extern const int TYPE_MISMATCH;
 }
 
@@ -182,15 +181,16 @@ public:
 
         auto dictionary = helper.getDictionary(arguments[0].column);
         auto dictionary_key_type = dictionary->getKeyType();
+        auto dictionary_special_key_type = dictionary->getSpecialKeyType();
 
-        const ColumnWithTypeAndName & key_column_with_type = arguments[1];
+        const auto & key_column_with_type = arguments[1];
         auto key_column = key_column_with_type.column;
         auto key_column_type = key_column_with_type.type;
 
-        ColumnPtr range_col = nullptr;
-        DataTypePtr range_col_type = nullptr;
+        ColumnPtr range_col;
+        DataTypePtr range_col_type;
 
-        if (dictionary_key_type == DictionaryKeyType::range)
+        if (dictionary_special_key_type == DictionarySpecialKeyType::Range)
         {
             if (arguments.size() != 3)
                 throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
@@ -207,7 +207,10 @@ public:
                     getName());
         }
 
-        if (dictionary_key_type == DictionaryKeyType::simple)
+        Columns key_columns;
+        DataTypes key_types;
+
+        if (dictionary_key_type == DictionaryKeyType::Simple)
         {
             if (!WhichDataType(key_column_type).isUInt64())
                  throw Exception(
@@ -216,16 +219,23 @@ public:
                      getName(),
                      key_column_with_type.type->getName());
 
-            return dictionary->hasKeys({key_column}, {std::make_shared<DataTypeUInt64>()});
+            key_columns = {key_column};
+            key_types = {std::make_shared<DataTypeUInt64>()};
         }
-        else if (dictionary_key_type == DictionaryKeyType::complex)
+        else if (dictionary_key_type == DictionaryKeyType::Complex)
         {
             /// Functions in external dictionaries_loader only support full-value (not constant) columns with keys.
             key_column = key_column->convertToFullColumnIfConst();
-            size_t keys_size = dictionary->getStructure().getKeysSize();
 
-            if (!isTuple(key_column_type))
+            if (isTuple(key_column_type))
             {
+                key_columns = assert_cast<const ColumnTuple &>(*key_column).getColumnsCopy();
+                key_types = assert_cast<const DataTypeTuple &>(*key_column_type).getElements();
+            }
+            else
+            {
+                size_t keys_size = dictionary->getStructure().getKeysSize();
+
                 if (keys_size > 1)
                 {
                     throw Exception(
@@ -237,41 +247,19 @@ public:
                 }
                 else
                 {
-                    Columns tuple_columns = {std::move(key_column)};
-                    key_column = ColumnTuple::create(tuple_columns);
-
-                    DataTypes tuple_types = {key_column_type};
-                    key_column_type = std::make_shared<DataTypeTuple>(tuple_types);
+                    key_columns = {key_column};
+                    key_types = {key_column_type};
                 }
             }
-
-            const auto & key_columns = assert_cast<const ColumnTuple &>(*key_column).getColumnsCopy();
-            const auto & key_types = assert_cast<const DataTypeTuple &>(*key_column_type).getElements();
-
-            return dictionary->hasKeys(key_columns, key_types);
         }
-        else
+
+        if (dictionary_special_key_type == DictionarySpecialKeyType::Range)
         {
-            /// Functions in external dictionaries_loader only support full-value (not constant) columns with keys.
-            ColumnPtr key_column = key_column_with_type.column->convertToFullColumnIfConst();
-            DataTypePtr key_column_type = key_column_with_type.type;
-
-            Columns key_columns;
-            DataTypes key_types;
-
-            if (isTuple(key_column_type))
-            {
-                key_columns = assert_cast<const ColumnTuple &>(*key_column).getColumnsCopy();
-                key_types = assert_cast<const DataTypeTuple &>(*key_column_type).getElements();
-            }
-            else
-            {
-                key_columns = {key_column, range_col};
-                key_types = {std::make_shared<DataTypeUInt64>(), range_col_type};
-            }
-
-            return dictionary->hasKeys({key_column, range_col}, {std::make_shared<DataTypeUInt64>(), range_col_type});
+            key_columns.emplace_back(range_col);
+            key_types.emplace_back(range_col_type);
         }
+
+        return dictionary->hasKeys(key_columns, key_types);
     }
 
 private:
@@ -369,13 +357,14 @@ public:
 
         auto dictionary = helper.getDictionary(dictionary_name);
         auto dictionary_key_type = dictionary->getKeyType();
+        auto dictionary_special_key_type = dictionary->getSpecialKeyType();
 
         size_t current_arguments_index = 3;
 
         ColumnPtr range_col = nullptr;
         DataTypePtr range_col_type = nullptr;
 
-        if (dictionary_key_type == DictionaryKeyType::range)
+        if (dictionary_special_key_type == DictionarySpecialKeyType::Range)
         {
             if (current_arguments_index >= arguments.size())
                 throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
@@ -437,12 +426,13 @@ public:
                 default_cols.emplace_back(nullptr);
         }
 
-        ColumnPtr result;
+        const auto & key_col_with_type = arguments[2];
+        auto key_column = key_col_with_type.column;
 
-        const ColumnWithTypeAndName & key_col_with_type = arguments[2];
-        const auto key_column = key_col_with_type.column;
+        Columns key_columns;
+        DataTypes key_types;
 
-        if (dictionary_key_type == DictionaryKeyType::simple)
+        if (dictionary_key_type == DictionaryKeyType::Simple)
         {
             if (!WhichDataType(key_col_with_type.type).isUInt64())
                  throw Exception(
@@ -451,24 +441,24 @@ public:
                      getName(),
                      key_col_with_type.type->getName());
 
-            result = executeDictionaryRequest(
-                dictionary,
-                attribute_names,
-                {key_column},
-                {std::make_shared<DataTypeUInt64>()},
-                result_type,
-                default_cols);
+            key_columns = {key_column};
+            key_types = {std::make_shared<DataTypeUInt64>()};
         }
-        else if (dictionary_key_type == DictionaryKeyType::complex)
+        else if (dictionary_key_type == DictionaryKeyType::Complex)
         {
             /// Functions in external dictionaries_loader only support full-value (not constant) columns with keys.
-            ColumnPtr key_column = key_col_with_type.column->convertToFullColumnIfConst();
+            key_column = key_column->convertToFullColumnIfConst();
             DataTypePtr key_column_type = key_col_with_type.type;
 
-            size_t keys_size = dictionary->getStructure().getKeysSize();
-
-            if (!isTuple(key_column_type))
+            if (isTuple(key_column_type))
             {
+                key_columns = assert_cast<const ColumnTuple &>(*key_column).getColumnsCopy();
+                key_types = assert_cast<const DataTypeTuple &>(*key_column_type).getElements();
+            }
+            else if (!isTuple(key_column_type))
+            {
+                size_t keys_size = dictionary->getStructure().getKeysSize();
+
                 if (keys_size > 1)
                 {
                     throw Exception(
@@ -480,60 +470,19 @@ public:
                 }
                 else
                 {
-                    Columns tuple_columns = {std::move(key_column)};
-                    key_column = ColumnTuple::create(tuple_columns);
-
-                    DataTypes tuple_types = {key_column_type};
-                    key_column_type = std::make_shared<DataTypeTuple>(tuple_types);
+                    key_columns = {std::move(key_column)};
+                    key_types = {std::move(key_column_type)};
                 }
             }
-
-            const auto & key_columns = assert_cast<const ColumnTuple &>(*key_column).getColumnsCopy();
-            const auto & key_types = assert_cast<const DataTypeTuple &>(*key_column_type).getElements();
-
-            result = executeDictionaryRequest(
-                dictionary,
-                attribute_names,
-                key_columns,
-                key_types,
-                result_type,
-                default_cols);
         }
-        else if (dictionary_key_type == DictionaryKeyType::range)
+
+        if (dictionary_special_key_type == DictionarySpecialKeyType::Range)
         {
-            /// Functions in external dictionaries_loader only support full-value (not constant) columns with keys.
-            ColumnPtr key_column = key_col_with_type.column->convertToFullColumnIfConst();
-            DataTypePtr key_column_type = key_col_with_type.type;
-
-            Columns key_columns;
-            DataTypes key_types;
-
-            if (isTuple(key_column_type))
-            {
-                key_columns = assert_cast<const ColumnTuple &>(*key_column).getColumnsCopy();
-                key_types = assert_cast<const DataTypeTuple &>(*key_column_type).getElements();
-            }
-            else
-            {
-                key_columns = {key_column};
-                key_types = {std::make_shared<DataTypeUInt64>()};
-            }
-
             key_columns.emplace_back(range_col);
             key_types.emplace_back(range_col_type);
-
-            result = executeDictionaryRequest(
-                dictionary,
-                attribute_names,
-                key_columns,
-                key_types,
-                result_type,
-                default_cols);
         }
-        else
-            throw Exception(ErrorCodes::BAD_ARGUMENTS, "Unknown dictionary identifier type");
 
-        return result;
+        return executeDictionaryRequest(dictionary, attribute_names, key_columns, key_types, result_type, default_cols);
     }
 
 private: