This is not that important, but because of packets overlaps the client
may not render the fatal error.
You will find TSan report in `details`.
<details>
```
WARNING: ThreadSanitizer: data race (pid=13384)
Write of size 8 at 0x7b24000ad818 by thread T47:
0 DB::WriteBuffer::next() obj-x86_64-linux-gnu/../src/IO/WriteBuffer.h:43:15 (clickhouse-tsan+0x16124d61)
1 DB::TCPHandler::sendProgress() obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:1602:10 (clickhouse-tsan+0x16124d61)
2 DB::TCPHandler::runImpl()::$_6::operator()() const obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:318:25 (clickhouse-tsan+0x1612cf54)
Previous write of size 8 at 0x7b24000ad818 by thread T229:
0 DB::WriteBuffer::next() obj-x86_64-linux-gnu/../src/IO/WriteBuffer.h:43:15 (clickhouse-tsan+0x1612b793)
1 DB::TCPHandler::sendLogData(DB::Block const&) obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:1561:10 (clickhouse-tsan+0x1612b793)
2 DB::TCPHandler::sendLogs() obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:1632:9 (clickhouse-tsan+0x161228ab)
3 DB::TCPHandler::runImpl()::$_1::operator()() const obj-x86_64-linux-gnu/../src/Server/TCPHandler.cpp:229:62 (clickhouse-tsan+0x1612c4e1)
```
</details>
The problem is that GROUP BY can update saved_hash, which can be also
updated by subsequent update of a dictionary, and this will lead to
use-after-free.
You will find ASan report in `details`.
<details>
==24679==ERROR: AddressSanitizer: heap-use-after-free on address 0x604000615d20 at pc 0x000022cc8684 bp 0x7ffea6b5f850 sp 0x7ffea6b5f848
READ of size 8 at 0x604000615d20 thread T223 (QueryPipelineEx)
0 0x22cc8683 in DB::ReverseIndex<>::insert(StringRef const&) obj-x86_64-linux-gnu/../src/Columns/ReverseIndex.h
1 0x22cc0de1 in COW<DB::IColumn>::mutable_ptr<DB::IColumn> DB::ColumnUnique<DB::ColumnString>::uniqueInsertRangeImpl<char8_t>()::'lambda'()::operator()() const obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:540:39
2 0x22cc0de1 in COW<DB::IColumn>::mutable_ptr<DB::IColumn> DB::ColumnUnique<DB::ColumnString>::uniqueInsertRangeImpl<char8_t>() obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:570:23
3 0x22cb9c66 in COW<DB::IColumn>::mutable_ptr<DB::IColumn> DB::ColumnUnique<DB::ColumnString>::uniqueInsertRangeFrom()::'lambda'(auto)::operator()<char8_t>(auto) const obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:592:26
4 0x22cb9c66 in DB::ColumnUnique<DB::ColumnString>::uniqueInsertRangeFrom() obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:600:28
5 0x2500b897 in DB::ColumnLowCardinality::insertRangeFrom() obj-x86_64-linux-gnu/../src/Columns/ColumnLowCardinality.cpp:205:62
6 0x25a182f4 in DB::appendBlock(DB::Block const&, DB::Block&) obj-x86_64-linux-gnu/../src/Storages/StorageBuffer.cpp:470:23
7 0x25a182f4 in DB::BufferSink::insertIntoBuffer(DB::Block const&, DB::StorageBuffer::Buffer&) obj-x86_64-linux-gnu/../src/Storages/StorageBuffer.cpp:634:9
8 0x25a173cc in DB::BufferSink::consume(DB::Chunk) obj-x86_64-linux-gnu/../src/Storages/StorageBuffer.cpp:595:9
9 0x26d1c997 in DB::SinkToStorage::transform(DB::Chunk&) obj-x86_64-linux-gnu/../src/Processors/Sinks/SinkToStorage.cpp:18:5
0x604000615d20 is located 16 bytes inside of 40-byte region [0x604000615d10,0x604000615d38)
freed by thread T37 (QueryPipelineEx) here:
2 0x22cb9392 in boost::intrusive_ptr<DB::ColumnVector<unsigned long> >::~intrusive_ptr() obj-x86_64-linux-gnu/../contrib/boost/boost/smart_ptr/intrusive_ptr.hpp:98:23
4 0x22cb9392 in COW<DB::IColumn>::mutable_ptr<DB::ColumnVector<unsigned long> >::operator=() obj-x86_64-linux-gnu/../src/Common/COW.h💯57
5 0x22cb9392 in DB::ReverseIndex<>::tryGetSavedHash() const obj-x86_64-linux-gnu/../src/Columns/ReverseIndex.h:362:28
6 0x22cb9392 in DB::ColumnUnique<DB::ColumnString>::tryGetSavedHash() const obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:125:76
7 0x242eaed3 in DB::ColumnsHashing::HashMethodSingleLowCardinalityColumn<>::HashMethodSingleLowCardinalityColumn() obj-x86_64-linux-gnu/../src/Common/ColumnsHashing.h:287:50
8 0x242206c6 in void DB::Aggregator::executeImpl<>() const obj-x86_64-linux-gnu/../src/Interpreters/Aggregator.cpp:596:28
9 0x24148e99 in DB::Aggregator::executeOnBlock() const obj-x86_64-linux-gnu/../src/Interpreters/Aggregator.cpp:1004:9
10 0x26c24f3a in DB::AggregatingTransform::consume(DB::Chunk) obj-x86_64-linux-gnu/../src/Processors/Transforms/AggregatingTransform.cpp:539:33
11 0x26c2054e in DB::AggregatingTransform::work() obj-x86_64-linux-gnu/../src/Processors/Transforms/AggregatingTransform.cpp:500:9
previously allocated by thread T37 (QueryPipelineEx) here:
0 0xb6d44fd in operator new(unsigned long) (/src/ch/tmp/upstream/clickhouse-asan+0xb6d44fd)
1 0x11b78580 in COW<DB::IColumn>::mutable_ptr<> COWHelper<>::create<unsigned long&>(unsigned long&) (/src/ch/tmp/upstream/clickhouse-asan+0x11b78580)
2 0x22cbf7b1 in DB::ReverseIndex<>::calcHashes() const obj-x86_64-linux-gnu/../src/Columns/ReverseIndex.h:472:17
3 0x22cc2307 in DB::ReverseIndex<>::buildIndex() obj-x86_64-linux-gnu/../src/Columns/ReverseIndex.h:438:22
4 0x22cc658c in DB::ReverseIndex<>::insert(StringRef const&) obj-x86_64-linux-gnu/../src/Columns/ReverseIndex.h:484:9
5 0x22cc0de1 in COW<DB::IColumn>::mutable_ptr<DB::IColumn> DB::ColumnUnique<DB::ColumnString>::uniqueInsertRangeImpl<char8_t>()::'lambda'()::operator()() const obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:540:39
6 0x22cc0de1 in COW<DB::IColumn>::mutable_ptr<DB::IColumn> DB::ColumnUnique<DB::ColumnString>::uniqueInsertRangeImpl<char8_t>() obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:570:23
7 0x22cb9c66 in COW<DB::IColumn>::mutable_ptr<DB::IColumn> DB::ColumnUnique<DB::ColumnString>::uniqueInsertRangeFrom()::'lambda'(auto)::operator()<char8_t>(auto) const obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:592:26
8 0x22cb9c66 in DB::ColumnUnique<DB::ColumnString>::uniqueInsertRangeFrom() obj-x86_64-linux-gnu/../src/Columns/ColumnUnique.h:600:28
9 0x2500b897 in DB::ColumnLowCardinality::insertRangeFrom() obj-x86_64-linux-gnu/../src/Columns/ColumnLowCardinality.cpp:205:62
10 0x25a182f4 in DB::appendBlock(DB::Block const&, DB::Block&) obj-x86_64-linux-gnu/../src/Storages/StorageBuffer.cpp:470:23
11 0x25a182f4 in DB::BufferSink::insertIntoBuffer(DB::Block const&, DB::StorageBuffer::Buffer&) obj-x86_64-linux-gnu/../src/Storages/StorageBuffer.cpp:634:9
12 0x25a173cc in DB::BufferSink::consume(DB::Chunk) obj-x86_64-linux-gnu/../src/Storages/StorageBuffer.cpp:595:9
13 0x26d1c997 in DB::SinkToStorage::transform(DB::Chunk&) obj-x86_64-linux-gnu/../src/Processors/Sinks/SinkToStorage.cpp:18:5
SUMMARY: AddressSanitizer: heap-use-after-free obj-x86_64-linux-gnu/../src/Columns/ReverseIndex.h in DB::ReverseIndex<unsigned long, DB::ColumnString>::insert(StringRef const&)
Shadow bytes around the buggy address:
0x0c08800bab50: fa fa fd fd fd fd fd fa fa fa 00 00 00 00 00 00
0x0c08800bab60: fa fa fd fd fd fd fd fa fa fa 00 00 00 00 00 fa
0x0c08800bab70: fa fa 00 00 00 00 00 00 fa fa 00 00 00 00 00 00
0x0c08800bab80: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fa
0x0c08800bab90: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fd
=>0x0c08800baba0: fa fa fd fd[fd]fd fd fa fa fa fd fd fd fd fd fa
0x0c08800babb0: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fa
0x0c08800babc0: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fd
0x0c08800babd0: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fa
0x0c08800babe0: fa fa fd fd fd fd fd fa fa fa fd fd fd fd fd fd
0x0c08800babf0: fa fa fd fd fd fd fd fd fa fa fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==24679==ABORTING
</details>
Defines.h is a very common header, so lots of modules will be recompiled
on changes.
Move macros for protocol into separate header, this should significantly
decreases number of units to compile on it's changes.
