Remove excessive empty lines

base/common/iostream_debug_helpers.h

@@ -80,7 +80,6 @@ dumpImpl(Out & out, T && x)
 }
 
 
-
 /// Tuple, pair
 template <size_t N, typename Out, typename T>
 Out & dumpTupleImpl(Out & out, T && x)

base/memcpy/impl/FastMemcpy.h

@@ -39,7 +39,6 @@ typedef __attribute__((__aligned__(1))) uint32_t uint32_unaligned_t;
 typedef __attribute__((__aligned__(1))) uint64_t uint64_unaligned_t;
 
 
-
 //---------------------------------------------------------------------
 // fast copy for different sizes
 //---------------------------------------------------------------------
@@ -694,4 +693,3 @@ static INLINE void* memcpy_fast(void *destination, const void *source, size_t si
 #endif
 
 
-

dbms/programs/copier/Internals.h

@@ -131,7 +131,6 @@ struct TaskStateWithOwner
 };
 
 
-
 struct ShardPriority
 {
     UInt8 is_remote = 1;

dbms/programs/performance-test/StopConditionsSet.cpp

@@ -60,5 +60,4 @@ void StopConditionsSet::report(UInt64 value, StopConditionsSet::StopCondition &
 }
 
 
-
 }

dbms/src/Access/IAccessStorage.cpp

@@ -72,7 +72,6 @@ bool IAccessStorage::exists(const UUID & id) const
 }
 
 
-
 AccessEntityPtr IAccessStorage::tryReadBase(const UUID & id) const
 {
     try

dbms/src/Access/Quota.h

@@ -5,7 +5,6 @@
 #include <chrono>
 
 
-
 namespace DB
 {
 /** Quota for resources consumption for specific interval.

dbms/src/AggregateFunctions/AggregateFunctionGroupArrayMoving.h

@@ -86,7 +86,6 @@ struct MovingAvgData
 };
 
 
-
 template <typename T, typename Tlimit_num_elems, typename Data>
 class MovingImpl final
     : public IAggregateFunctionDataHelper<Data, MovingImpl<T, Tlimit_num_elems, Data>>

dbms/src/Columns/ColumnLowCardinality.h

@@ -287,5 +287,4 @@ private:
 };
 
 
-
 }

dbms/src/Common/Macros.h

@@ -6,7 +6,6 @@
 #include <map>
 
 
-
 namespace Poco
 {
     namespace Util

dbms/src/Common/MemoryTracker.cpp

@@ -71,7 +71,6 @@ static void logMemoryUsage(Int64 amount)
 }
 
 
-
 void MemoryTracker::alloc(Int64 size)
 {
     if (blocker.isCancelled())

dbms/src/Common/RadixSort.h

@@ -109,7 +109,6 @@ struct RadixSortIdentityTransform
 };
 
 
-
 template <typename TElement>
 struct RadixSortUIntTraits
 {

dbms/src/Common/UInt128.h

@@ -109,7 +109,6 @@ struct UInt128TrivialHash
 };
 
 
-
 /** Used for aggregation, for putting a large number of constant-length keys in a hash table.
   */
 struct UInt256

dbms/src/Common/ZooKeeper/ZooKeeperImpl.h

@@ -88,7 +88,6 @@ using namespace DB;
 struct ZooKeeperRequest;
 
 
-
 /** Usage scenario: look at the documentation for IKeeper class.
   */
 class ZooKeeper : public IKeeper

dbms/src/Common/ZooKeeper/tests/gtest_zkutil_test_multi_exception.cpp

@@ -200,4 +200,3 @@ TEST(zkutil, multi_create_sequential)
 }
 
 
-

dbms/src/Common/getNumberOfPhysicalCPUCores.cpp

@@ -10,7 +10,6 @@
 #endif
 
 
-
 unsigned getNumberOfPhysicalCPUCores()
 {
 #if USE_CPUID

dbms/src/Common/parseRemoteDescription.cpp

@@ -50,7 +50,6 @@ static bool parseNumber(const String & description, size_t l, size_t r, size_t &
 }
 
 
-
 /* Parse a string that generates shards and replicas. Separator - one of two characters | or ,
  *  depending on whether shards or replicas are generated.
  * For example:

dbms/src/Common/tests/hash_table.cpp

@@ -7,7 +7,6 @@
 #include <Common/HashTable/HashSet.h>
 
 
-
 int main(int, char **)
 {
     {

dbms/src/Common/tests/integer_hash_tables_and_hashes.cpp

@@ -22,7 +22,6 @@ using Key = UInt64;
 using Value = UInt64;
 
 
-
 /// Various hash functions to test
 
 namespace Hashes
@@ -336,7 +335,6 @@ static void NO_INLINE testForEachMapAndHash(const Key * data, size_t size)
 }
 
 
-
 int main(int argc, char ** argv)
 {
     if (argc < 2)

dbms/src/Common/tests/parallel_aggregation.cpp

@@ -244,7 +244,6 @@ void aggregate5(Map & local_map, MapSmallLocks & global_map, Source::const_itera
 }*/
 
 
-
 int main(int argc, char ** argv)
 {
     size_t n = atoi(argv[1]);

dbms/src/Common/tests/parallel_aggregation2.cpp

@@ -283,7 +283,6 @@ struct Merger
 };
 
 
-
 int main(int argc, char ** argv)
 {
     size_t n = atoi(argv[1]);

dbms/src/Common/tests/small_table.cpp

@@ -6,7 +6,6 @@
 #include <Common/HashTable/SmallTable.h>
 
 
-
 int main(int, char **)
 {
     {

dbms/src/Core/Block.cpp

@@ -358,7 +358,6 @@ void Block::setColumns(const Columns & columns)
 }
 
 
-
 Block Block::cloneWithColumns(MutableColumns && columns) const
 {
     Block res;

dbms/src/Core/Block.h

@@ -12,7 +12,6 @@
 #include <Core/ColumnsWithTypeAndName.h>
 
 
-
 namespace DB
 {
 

dbms/src/Core/SettingsCollection.cpp

@@ -391,7 +391,6 @@ void SettingEnum<EnumType, Tag>::set(const Field & x)
 }
 
 
-
 String SettingURI::toString() const
 {
     return value.toString();

dbms/src/Core/callOnTypeIndex.h

@@ -15,7 +15,6 @@ struct TypePair
 };
 
 
-
 template <typename T, bool _int, bool _float, bool _decimal, bool _datetime, typename F>
 bool callOnBasicType(TypeIndex number, F && f)
 {

dbms/src/DataStreams/VersionedCollapsingSortedBlockInputStream.cpp

@@ -25,7 +25,6 @@ VersionedCollapsingSortedBlockInputStream::VersionedCollapsingSortedBlockInputSt
 }
 
 
-
 inline ALWAYS_INLINE static void writeRowSourcePart(WriteBuffer & buffer, RowSourcePart row_source)
 {
     if constexpr (sizeof(RowSourcePart) == 1)

dbms/src/DataTypes/DataTypeTuple.cpp

@@ -66,7 +66,6 @@ DataTypeTuple::DataTypeTuple(const DataTypes & elems_, const Strings & names_)
 }
 
 
-
 std::string DataTypeTuple::doGetName() const
 {
     size_t size = elems.size();

dbms/src/DataTypes/DataTypesDecimal.cpp

@@ -42,7 +42,6 @@ std::string DataTypeDecimal<T>::doGetName() const
 }
 
 
-
 template <typename T>
 bool DataTypeDecimal<T>::equals(const IDataType & rhs) const
 {

dbms/src/Databases/DatabaseLazy.cpp

@@ -27,7 +27,6 @@ namespace ErrorCodes
 }
 
 
-
 DatabaseLazy::DatabaseLazy(const String & name_, const String & metadata_path_, time_t expiration_time_, const Context & context_)
     : DatabaseOnDisk(name_, metadata_path_, "DatabaseLazy (" + name_ + ")")
     , expiration_time(expiration_time_)

dbms/src/Databases/DatabaseMySQL.cpp

@@ -25,7 +25,6 @@
 #include <Poco/DirectoryIterator.h>
 
 
-
 namespace DB
 {
 

dbms/src/Databases/DatabaseOnDisk.cpp

@@ -19,7 +19,6 @@
 #include <Poco/DirectoryIterator.h>
 
 
-
 namespace DB
 {
 

dbms/src/Formats/ProtobufReader.cpp

@@ -553,7 +553,6 @@ protected:
 };
 
 
-
 class ProtobufReader::ConverterFromString : public ConverterBaseImpl
 {
 public:
@@ -864,7 +863,6 @@ PROTOBUF_READER_CREATE_CONVERTER_SPECIALIZATION_FOR_NUMBERS(google::protobuf::Fi
 #undef PROTOBUF_READER_CREATE_CONVERTER_SPECIALIZATION_FOR_NUMBERS
 
 
-
 class ProtobufReader::ConverterFromBool : public ConverterBaseImpl
 {
 public:

dbms/src/Functions/FunctionBinaryArithmetic.h

@@ -158,7 +158,6 @@ struct FixedStringOperationImpl
 };
 
 
-
 template <typename A, typename B, typename Op, typename ResultType = typename Op::ResultType>
 struct BinaryOperationImpl : BinaryOperationImplBase<A, B, Op, ResultType>
 {

dbms/src/Functions/FunctionsLogical.h

@@ -18,7 +18,6 @@
 #endif
 
 
-
 /** Logical functions AND, OR, XOR and NOT support three-valued (or ternary) logic
   * https://en.wikibooks.org/wiki/Structured_Query_Language/NULLs_and_the_Three_Valued_Logic
   *

dbms/src/Functions/GatherUtils/Algorithms.h

@@ -162,7 +162,6 @@ inline ALWAYS_INLINE void writeSlice(const NumericValueSlice<T> & slice, Generic
 }
 
 
-
 template <typename SourceA, typename SourceB, typename Sink>
 void NO_INLINE concat(SourceA && src_a, SourceB && src_b, Sink && sink)
 {

dbms/src/Functions/caseWithExpression.cpp

@@ -124,5 +124,3 @@ void registerFunctionCaseWithExpression(FunctionFactory & factory)
 }
 
 
-
-

dbms/src/Functions/generateUUIDv4.cpp

@@ -54,4 +54,3 @@ void registerFunctionGenerateUUIDv4(FunctionFactory & factory)
 }
 
 
-

dbms/src/Functions/multiIf.cpp

@@ -242,4 +242,3 @@ void registerFunctionMultiIf(FunctionFactory & factory)
 }
 
 
-

dbms/src/Functions/reinterpretStringAs.cpp

@@ -152,4 +152,3 @@ void registerFunctionsReinterpretStringAs(FunctionFactory & factory)
 }
 
 
-

dbms/src/Functions/timeSlot.cpp

@@ -18,4 +18,3 @@ void registerFunctionTimeSlot(FunctionFactory & factory)
 }
 
 
-

dbms/src/IO/WriteHelpers.h

@@ -464,7 +464,6 @@ void writeAnyQuotedString(const char * begin, const char * end, WriteBuffer & bu
 }
 
 
-
 template <char quote_character>
 void writeAnyQuotedString(const String & s, WriteBuffer & buf)
 {
@@ -1020,7 +1019,6 @@ void writeText(const std::vector<T> & x, WriteBuffer & buf)
 }
 
 
-
 /// Serialize exception (so that it can be transferred over the network)
 void writeException(const Exception & e, WriteBuffer & buf, bool with_stack_trace);
 

dbms/src/Interpreters/BloomFilter.h

@@ -61,5 +61,4 @@ using BloomFilterPtr = std::shared_ptr<BloomFilter>;
 bool operator== (const BloomFilter & a, const BloomFilter & b);
 
 
-
 }

dbms/src/Interpreters/InternalTextLogsQueue.h

@@ -29,4 +29,3 @@ using InternalTextLogsQueuePtr = std::shared_ptr<InternalTextLogsQueue>;
 }
 
 
-

dbms/src/Interpreters/InterpreterKillQueryQuery.cpp

@@ -109,7 +109,6 @@ static QueryDescriptors extractQueriesExceptMeAndCheckAccess(const Block & proce
 }
 
 
-
 class SyncKillQueryInputStream : public IBlockInputStream
 {
 public:

dbms/src/Interpreters/QueryThreadLog.h

@@ -56,4 +56,3 @@ class QueryThreadLog : public SystemLog<QueryThreadLogElement>
 }
 
 
-

dbms/src/Interpreters/tests/hash_map_string_2.cpp

@@ -178,7 +178,6 @@ inline bool operator==(StringRef_Compare8_1_byUInt64 lhs, StringRef_Compare8_1_b
 }
 
 
-
 inline bool compare_byMemcmp(const char * p1, const char * p2)
 {
     return 0 == memcmp(p1, p2, 16);
@@ -576,7 +575,6 @@ inline bool operator==(StringRef_CompareAlmostAlwaysTrue lhs, StringRef_CompareA
 }
 
 
-
 using Value = UInt64;
 
 

dbms/src/Parsers/ASTColumnsMatcher.cpp

@@ -4,7 +4,6 @@
 #include <re2/re2.h>
 
 
-
 namespace DB
 {
 namespace ErrorCodes

dbms/src/Parsers/ASTDictionary.cpp

@@ -32,7 +32,6 @@ void ASTDictionaryRange::formatImpl(const FormatSettings & settings,
 }
 
 
-
 ASTPtr ASTDictionaryLifetime::clone() const
 {
     auto res = std::make_shared<ASTDictionaryLifetime>(*this);

dbms/src/Parsers/ASTSampleRatio.cpp

@@ -35,6 +35,4 @@ String ASTSampleRatio::toString(Rational ratio)
 }
 
 
-
-
 }

dbms/src/Parsers/ExpressionListParsers.cpp

@@ -74,7 +74,6 @@ const char * ParserTupleElementExpression::operators[] =
 };
 
 
-
 bool ParserList::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
 {
     bool first = true;

dbms/src/Parsers/tests/gtest_dictionary_parser.cpp

@@ -273,7 +273,6 @@ TEST(ParserDictionaryDDL, NestedSource)
 }
 
 
-
 TEST(ParserDictionaryDDL, Formatting)
 {
     String input = " CREATE DICTIONARY test.dict5"

dbms/src/Processors/ForkProcessor.cpp

@@ -78,4 +78,3 @@ ForkProcessor::Status ForkProcessor::prepare()
 }
 
 
-

dbms/src/Processors/Formats/Impl/CSVRowOutputFormat.cpp

@@ -70,7 +70,6 @@ void CSVRowOutputFormat::writeBeforeExtremes()
 }
 
 
-
 void registerOutputFormatProcessorCSV(FormatFactory & factory)
 {
     for (bool with_names : {false, true})

dbms/src/Processors/Formats/Impl/ConstantExpressionTemplate.cpp

@@ -208,7 +208,6 @@ private:
 };
 
 
-
 /// Expression template is a sequence of tokens and data types of literals.
 /// E.g. template of "position('some string', 'other string') != 0" is
 /// ["position", "(", DataTypeString, ",", DataTypeString, ")", "!=", DataTypeUInt64]
@@ -288,7 +287,6 @@ size_t ConstantExpressionTemplate::TemplateStructure::getTemplateHash(const ASTP
 }
 
 
-
 ConstantExpressionTemplate::TemplateStructurePtr
 ConstantExpressionTemplate::Cache::getFromCacheOrConstruct(const DataTypePtr & result_column_type,
                                                            bool null_as_default,

dbms/src/Processors/Formats/Impl/ODBCDriver2BlockOutputFormat.h

@@ -51,5 +51,4 @@ private:
 };
 
 
-
 }

dbms/src/Processors/Formats/Impl/ProtobufRowOutputFormat.cpp

@@ -10,7 +10,6 @@
 #include <google/protobuf/descriptor.h>
 
 
-
 namespace DB
 {
 namespace ErrorCodes

dbms/src/Processors/Formats/Impl/TSKVRowOutputFormat.cpp

@@ -4,7 +4,6 @@
 #include <Formats/FormatFactory.h>
 
 
-
 namespace DB
 {
 

dbms/src/Processors/IProcessor.h

@@ -298,6 +298,4 @@ private:
 };
 
 
-
-
 }

dbms/src/Storages/Distributed/DistributedBlockOutputStream.cpp

@@ -37,7 +37,6 @@
 #include <mutex>
 
 
-
 namespace CurrentMetrics
 {
     extern const Metric DistributedSend;

dbms/src/Storages/MergeTree/StorageFromMergeTreeDataPart.h

@@ -32,7 +32,6 @@ public:
     }
 
 
-
     bool supportsIndexForIn() const override { return true; }
 
     bool mayBenefitFromIndexForIn(const ASTPtr & left_in_operand, const Context & query_context) const override

dbms/src/Storages/StorageReplicatedMergeTree.cpp

@@ -2623,7 +2623,6 @@ String StorageReplicatedMergeTree::findReplicaHavingCoveringPart(
 }
 
 
-
 /** If a quorum is tracked for a part, update information about it in ZK.
   */
 void StorageReplicatedMergeTree::updateQuorum(const String & part_name)

dbms/src/Storages/StorageSet.cpp

@@ -79,7 +79,6 @@ void SetOrJoinBlockOutputStream::writeSuffix()
 }
 
 
-
 BlockOutputStreamPtr StorageSetOrJoinBase::write(const ASTPtr & /*query*/, const Context & /*context*/)
 {
     UInt64 id = ++increment;
@@ -106,7 +105,6 @@ StorageSetOrJoinBase::StorageSetOrJoinBase(
 }
 
 
-
 StorageSet::StorageSet(
     const String & relative_path_,
     const StorageID & table_id_,

dbms/src/Storages/StorageView.cpp

@@ -91,7 +91,6 @@ ASTPtr StorageView::getRuntimeViewQuery(const ASTSelectQuery & outer_query, cons
 }
 
 
-
 ASTPtr StorageView::getRuntimeViewQuery(ASTSelectQuery * outer_query, const Context & context, bool normalize)
 {
     auto runtime_view_query = inner_query->clone();

dbms/src/Storages/System/StorageSystemReplicationQueue.cpp

@@ -17,7 +17,6 @@ namespace DB
 {
 
 
-
 NamesAndTypesList StorageSystemReplicationQueue::getNamesAndTypes()
 {
     return {