[Bug] convertor coredump when nullmap is nullptr

[Lchangliang]

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Version

master

What's Wrong?

#0 0x0000564fee9ccd05 in operator() (__closure=0x7fca5e5e2670) at /home/zcp/repo_center/doris_master/be/src/olap/rowset/segment_v2/column_writer.cpp:202
#1 0x0000564fee9cd01e in doris::segment_v2::ColumnWriter::append_nullable (this=0x611000e73140, null_map=0x1319ba <error: Cannot access memory at address 0x1319ba>,
ptr=0x7fca5e5e3850, num_rows=744797) at /home/zcp/repo_center/doris_master/be/src/olap/rowset/segment_v2/column_writer.cpp:211
#2 0x0000564fee9cd666 in doris::segment_v2::ColumnWriter::append (this=0x611000e73140, nullmap=0x1319ba <error: Cannot access memory at address 0x1319ba>,
data=0x7fca6336f6f8, num_rows=744797) at /home/zcp/repo_center/doris_master/be/src/olap/rowset/segment_v2/column_writer.cpp:231
#3 0x0000564fee9b74de in doris::segment_v2::SegmentWriter::append_block (this=0x6120005a0f40, block=0x7fca5e5e94c0, row_pos=1251770, num_rows=744797)
at /home/zcp/repo_center/doris_master/be/src/olap/rowset/segment_v2/segment_writer.cpp:146
#4 0x0000564feea6eb3b in doris::BetaRowsetWriter::_add_block (this=0x6130008afb80, block=0x7fca5e5e94c0, segment_writer=0x7fca5e5e79e0)
at /home/zcp/repo_center/doris_master/be/src/olap/rowset/beta_rowset_writer.cpp:124
#5 0x0000564feea7096b in doris::BetaRowsetWriter::flush_single_memtable (this=0x6130008afb80, block=0x7fca5e5e94c0)
at /home/zcp/repo_center/doris_master/be/src/olap/rowset/beta_rowset_writer.cpp:224
#6 0x0000564fedd6389a in doris::MemTable::_do_flush (this=0x617000601680, duration_ns=@0x7fca5e5ec090: 0) at /home/zcp/repo_center/doris_master/be/src/olap/memtable.cpp:376
#7 0x0000564fedd628a2 in doris::MemTable::flush (this=0x617000601680) at /home/zcp/repo_center/doris_master/be/src/olap/memtable.cpp:347
#8 0x0000564fedd5669e in doris::FlushToken::_flush_memtable (this=0x606000efb400, memtable=..., submit_task_time=706428922781208)
at /home/zcp/repo_center/doris_master/be/src/olap/memtable_flush_executor.cpp:85

What You Expected?

work

How to Reproduce?

No response

Anything Else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

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