
May I ask the MaterializeMySQL engine when a certain field type of mysql is changed to time, the entire library cannot be used, and an error is reported:

`2021.07.15 17:32:08.888869 [ 17577 ] {} <Debug> MaterializeMySQLSyncThread: Skip MySQL event: 
 
=== FormatDescriptionEvent ===
Timestamp: 1626324911
Event Type: FormatDescriptionEvent
Server ID: 683306
Event Size: 119
Log Pos: 123
Flags: 0
Binlog Version: 4
Server Version: 5.7.30-log
Create Timestamp: 0
Event Header Len: 19

2021.07.15 17:32:08.888887 [ 17577 ] {} <Debug> MaterializeMySQLSyncThread: Skip MySQL event: 
 
=== PreviousGTIDsEvent ===
Timestamp: 1626324911
Event Type: PreviousGTIDsEvent
Server ID: 683306
Event Size: 71
Log Pos: 194
Flags: 128
[DryRun Event]

2021.07.15 17:32:08.888914 [ 17577 ] {} <Debug> MaterializeMySQLSyncThread: Skip MySQL event: 
 
=== GTIDEvent ===
Timestamp: 1626333839
Event Type: GTIDEvent
Server ID: 683306
Event Size: 65
Log Pos: 2912
Flags: 0
GTID Next: d230d9a6-e3c1-11eb-b977-b409318409b6:51

2021.07.15 17:32:08.897374 [ 17577 ] {} <Debug> MemoryTracker: Peak memory usage (for query): 0.00 B.
2021.07.15 17:32:08.897627 [ 17577 ] {} <Debug> executeQuery: (internal) /*Materialize MySQL step 2: execute MySQL DDL for sync data*/ EXTERNAL DDL FROM MySQL(ods_midea_mss_1, midea_mss) ALTER TABLE `midea_mss`.`sys_user` ADD COLUMN `uname` time NULL AFTER `username`
2021.07.15 17:32:08.898108 [ 17577 ] {} <Error> MaterializeMySQLSyncThread(ods_midea_mss_1): Query EXTERNAL DDL FROM MySQL(ods_midea_mss_1, midea_mss) ALTER TABLE `midea_mss`.`sys_user` 
ADD COLUMN `uname` time NULL AFTER `username` wasn't finished successfully: Code: 50, e.displayText() = DB::Exception: Unknown data type family: time, Stack trace (when copying this message, always include the lines below):

0. DB::Exception::Exception(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int, bool) @ 0x8b770fa in /usr/bin/clickhouse
1. DB::DataTypeFactory::findCreatorByName(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) const @ 0xf37e274 in /usr/bin/clickhouse
2. DB::DataTypeFactory::get(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37d199 in /usr/bin/clickhouse
3. DB::DataTypeFactory::get(std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37cf86 in /usr/bin/clickhouse
4. ? @ 0xf3e62c9 in /usr/bin/clickhouse
5. DB::DataTypeFactory::get(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37d1a2 in /usr/bin/clickhouse
6. DB::DataTypeFactory::get(std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37cf86 in /usr/bin/clickhouse
7. ? @ 0xfc6fbfb in /usr/bin/clickhouse
8. DB::MySQLInterpreter::InterpreterAlterImpl::getRewrittenQueries(DB::MySQLParser::ASTAlterQuery const&, std::__1::shared_ptr<DB::Context>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) @ 0xfc7272f in /usr/bin/clickhouse
9. DB::MySQLInterpreter::InterpreterMySQLDDLQuery<DB::MySQLInterpreter::InterpreterAlterImpl>::execute() @ 0xf8da31e in /usr/bin/clickhouse
10. DB::InterpreterExternalDDLQuery::execute() @ 0xf8d8e03 in /usr/bin/clickhouse
11. ? @ 0xfc44781 in /usr/bin/clickhouse
12. DB::executeQuery(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::Context>, bool, DB::QueryProcessingStage::Enum, bool) @ 0xfc42e03 in /usr/bin/clickhouse
13. ? @ 0xf5de654 in /usr/bin/clickhouse
14. DB::MaterializeMySQLSyncThread::executeDDLAtomic(DB::MySQLReplication::QueryEvent const&) @ 0xf5ddf0b in /usr/bin/clickhouse
15. DB::commitMetadata(std::__1::function<void ()> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) @ 0xf62dc96 in /usr/bin/clickhouse
16. DB::MaterializeMetadata::transaction(DB::MySQLReplication::Position const&, std::__1::function<void ()> const&) @ 0xf6306a0 in /usr/bin/clickhouse
17. DB::MaterializeMySQLSyncThread::onEvent(DB::MaterializeMySQLSyncThread::Buffers&, std::__1::shared_ptr<DB::MySQLReplication::EventBase> const&, DB::MaterializeMetadata&) @ 0xf5d8ecf in /usr/bin/clickhouse
18. DB::MaterializeMySQLSyncThread::synchronization() @ 0xf5d5a4a in /usr/bin/clickhouse
19. ? @ 0xf5f8134 in /usr/bin/clickhouse
20. ThreadPoolImpl<std::__1::thread>::worker(std::__1::__list_iterator<std::__1::thread, void*>) @ 0x8bb741f in /usr/bin/clickhouse
21. ? @ 0x8bba943 in /usr/bin/clickhouse
22. start_thread @ 0x7dd5 in /usr/lib64/libpthread-2.17.so
23. __clone @ 0xfdead in /usr/lib64/libc-2.17.so
 (version 21.6.6.51 (official build))
2021.07.15 17:32:08.898196 [ 17577 ] {} <Error> MaterializeMySQLSyncThread: Code: 50, e.displayText() = DB::Exception: Unknown data type family: time: While executing MYSQL_QUERY_EVENT. The query: ALTER TABLE `midea_mss`.`sys_user` 
ADD COLUMN `uname` time NULL AFTER `username`, Stack trace (when copying this message, always include the lines below):

0. DB::Exception::Exception(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int, bool) @ 0x8b770fa in /usr/bin/clickhouse
1. DB::DataTypeFactory::findCreatorByName(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) const @ 0xf37e274 in /usr/bin/clickhouse
2. DB::DataTypeFactory::get(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37d199 in /usr/bin/clickhouse
3. DB::DataTypeFactory::get(std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37cf86 in /usr/bin/clickhouse
4. ? @ 0xf3e62c9 in /usr/bin/clickhouse
5. DB::DataTypeFactory::get(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37d1a2 in /usr/bin/clickhouse
6. DB::DataTypeFactory::get(std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37cf86 in /usr/bin/clickhouse
7. ? @ 0xfc6fbfb in /usr/bin/clickhouse
8. DB::MySQLInterpreter::InterpreterAlterImpl::getRewrittenQueries(DB::MySQLParser::ASTAlterQuery const&, std::__1::shared_ptr<DB::Context>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) @ 0xfc7272f in /usr/bin/clickhouse
9. DB::MySQLInterpreter::InterpreterMySQLDDLQuery<DB::MySQLInterpreter::InterpreterAlterImpl>::execute() @ 0xf8da31e in /usr/bin/clickhouse
10. DB::InterpreterExternalDDLQuery::execute() @ 0xf8d8e03 in /usr/bin/clickhouse
11. ? @ 0xfc44781 in /usr/bin/clickhouse
12. DB::executeQuery(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::Context>, bool, DB::QueryProcessingStage::Enum, bool) @ 0xfc42e03 in /usr/bin/clickhouse
13. ? @ 0xf5de654 in /usr/bin/clickhouse
14. DB::MaterializeMySQLSyncThread::executeDDLAtomic(DB::MySQLReplication::QueryEvent const&) @ 0xf5ddf0b in /usr/bin/clickhouse
15. DB::commitMetadata(std::__1::function<void ()> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) @ 0xf62dc96 in /usr/bin/clickhouse
16. DB::MaterializeMetadata::transaction(DB::MySQLReplication::Position const&, std::__1::function<void ()> const&) @ 0xf6306a0 in /usr/bin/clickhouse
17. DB::MaterializeMySQLSyncThread::onEvent(DB::MaterializeMySQLSyncThread::Buffers&, std::__1::shared_ptr<DB::MySQLReplication::EventBase> const&, DB::MaterializeMetadata&) @ 0xf5d8ecf in /usr/bin/clickhouse
18. DB::MaterializeMySQLSyncThread::synchronization() @ 0xf5d5a4a in /usr/bin/clickhouse
19. ? @ 0xf5f8134 in /usr/bin/clickhouse
20. ThreadPoolImpl<std::__1::thread>::worker(std::__1::__list_iterator<std::__1::thread, void*>) @ 0x8bb741f in /usr/bin/clickhouse
21. ? @ 0x8bba943 in /usr/bin/clickhouse
22. start_thread @ 0x7dd5 in /usr/lib64/libpthread-2.17.so
23. __clone @ 0xfdead in /usr/lib64/libc-2.17.so
 (version 21.6.6.51 (official build))
2021.07.15 17:32:08.898356 [ 17577 ] {} <Error> MaterializeMySQLSyncThread: Code: 50, e.displayText() = DB::Exception: Unknown data type family: time: While executing MYSQL_QUERY_EVENT. The query: ALTER TABLE `midea_mss`.`sys_user` 
ADD COLUMN `uname` time NULL AFTER `username`, Stack trace (when copying this message, always include the lines below):

0. DB::Exception::Exception(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int, bool) @ 0x8b770fa in /usr/bin/clickhouse
1. DB::DataTypeFactory::findCreatorByName(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) const @ 0xf37e274 in /usr/bin/clickhouse
2. DB::DataTypeFactory::get(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37d199 in /usr/bin/clickhouse
3. DB::DataTypeFactory::get(std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37cf86 in /usr/bin/clickhouse
4. ? @ 0xf3e62c9 in /usr/bin/clickhouse
5. DB::DataTypeFactory::get(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37d1a2 in /usr/bin/clickhouse
6. DB::DataTypeFactory::get(std::__1::shared_ptr<DB::IAST> const&) const @ 0xf37cf86 in /usr/bin/clickhouse
7. ? @ 0xfc6fbfb in /usr/bin/clickhouse
8. DB::MySQLInterpreter::InterpreterAlterImpl::getRewrittenQueries(DB::MySQLParser::ASTAlterQuery const&, std::__1::shared_ptr<DB::Context>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) @ 0xfc7272f in /usr/bin/clickhouse
9. DB::MySQLInterpreter::InterpreterMySQLDDLQuery<DB::MySQLInterpreter::InterpreterAlterImpl>::execute() @ 0xf8da31e in /usr/bin/clickhouse
10. DB::InterpreterExternalDDLQuery::execute() @ 0xf8d8e03 in /usr/bin/clickhouse
11. ? @ 0xfc44781 in /usr/bin/clickhouse
12. DB::executeQuery(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::shared_ptr<DB::Context>, bool, DB::QueryProcessingStage::Enum, bool) @ 0xfc42e03 in /usr/bin/clickhouse
13. ? @ 0xf5de654 in /usr/bin/clickhouse
14. DB::MaterializeMySQLSyncThread::executeDDLAtomic(DB::MySQLReplication::QueryEvent const&) @ 0xf5ddf0b in /usr/bin/clickhouse
15. DB::commitMetadata(std::__1::function<void ()> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) @ 0xf62dc96 in /usr/bin/clickhouse
16. DB::MaterializeMetadata::transaction(DB::MySQLReplication::Position const&, std::__1::function<void ()> const&) @ 0xf6306a0 in /usr/bin/clickhouse
17. DB::MaterializeMySQLSyncThread::onEvent(DB::MaterializeMySQLSyncThread::Buffers&, std::__1::shared_ptr<DB::MySQLReplication::EventBase> const&, DB::MaterializeMetadata&) @ 0xf5d8ecf in /usr/bin/clickhouse
18. DB::MaterializeMySQLSyncThread::synchronization() @ 0xf5d5a4a in /usr/bin/clickhouse
19. ? @ 0xf5f8134 in /usr/bin/clickhouse
20. ThreadPoolImpl<std::__1::thread>::worker(std::__1::__list_iterator<std::__1::thread, void*>) @ 0x8bb741f in /usr/bin/clickhouse
21. ? @ 0x8bba943 in /usr/bin/clickhouse
22. start_thread @ 0x7dd5 in /usr/lib64/libpthread-2.17.so
23. __clone @ 0xfdead in /usr/lib64/libc-2.17.so
 (version 21.6.6.51 (official build))`
row.push_back(Field{Float32{val}});
                        break;
                    }
                    case MYSQL_TYPE_DOUBLE:
                    {
                        Float64 val = 0;
                        payload.readStrict(reinterpret_cast<char *>(&val), 8);
                        row.push_back(Field{Float64{val}});
                        break;
                    }
                    case MYSQL_TYPE_TIMESTAMP:
                    {
                        UInt32 val = 0;
                        payload.readStrict(reinterpret_cast<char *>(&val), 4);
                        row.push_back(Field{val});
                        break;
                    }
                    case MYSQL_TYPE_DATE:
                    {
                        UInt32 i24 = 0;
                        payload.readStrict(reinterpret_cast<char *>(&i24), 3);
                        const DayNum date_day_number(DateLUT::instance().makeDayNum(
                            static_cast<int>((i24 >> 9) & 0x7fff), static_cast<int>((i24 >> 5) & 0xf), static_cast<int>(i24 & 0x1f)).toUnderType());
                        row.push_back(Field(date_day_number.toUnderType()));
                        break;
                    }
                    case MYSQL_TYPE_DATETIME2:
                    {
                        Int64 val = 0;
                        UInt32 fsp = 0;