mysql have table t(a Int, b Int), 2 records: (1,1) and (2, 2), then in ck count
`select count(1) from ckdb.t ` -- 2, that's ok.
then, mysql  delete (2,2) and ck count
`select count(1) from ckdb.t ` -- still 2, that's not correct .
#pragma once
#include <Core/Field.h>
#include <Core/MySQL/PacketsReplication.h>
#include <Core/MySQL/MySQLGtid.h>
#include <common/types.h>
#include <IO/ReadBuffer.h>
#include <IO/WriteBuffer.h>
#include <map>
#include <boost/dynamic_bitset.hpp>
namespace DB
{
namespace MySQLReplication
{
    static const int EVENT_VERSION_V4 = 4;
    static const int EVENT_HEADER_LENGTH = 19;
    static const int CHECKSUM_CRC32_SIGNATURE_LENGTH = 4;
    using Bitmap = boost::dynamic_bitset<>;
    inline UInt64 readBits(UInt64 val, UInt8 start, UInt8 size, UInt8 length)
    {
        UInt64 mask = 1;
        val = val >> (length - (start + size));
        return val & ((mask << size) - 1);
    }
    inline void readBigEndianStrict(ReadBuffer & payload, char * to, size_t n)