[Fix](orc-reader) Fix StringRef nullptr data in orc-reader. (#40857)#41308
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morningman merged 1 commit intoapache:branch-3.0from Sep 26, 2024
Merged
[Fix](orc-reader) Fix StringRef nullptr data in orc-reader. (#40857)#41308morningman merged 1 commit intoapache:branch-3.0from
morningman merged 1 commit intoapache:branch-3.0from
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…0857) ## Proposed changes ### Issue ``` /var/local/ldb-toolchain/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_vector.h:1046:9: runtime error: reference binding to null pointer of type 'doris::StringRef' #0 0x55ee63eb0418 in std::vector<doris::StringRef, std::allocator<doris::StringRef>>::operator[](unsigned long) /var/local/ldb-toolchain/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/bits/stl_vector.h:1046:2 #1 0x55ee63eb0418 in doris::Status doris::vectorized::OrcReader::_decode_string_non_dict_encoded_column<false>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, COW<doris::vectorized::IColumn>::mutable_ptr<doris::vectorized::IColumn> const&, orc::TypeKind const&, orc::EncodedStringVectorBatch*, unsigned long) /home/zcp/repo_center/doris_master/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1172:39 #2 0x55ee63ea2685 in doris::Status doris::vectorized::OrcReader::_decode_string_column<false>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, COW<doris::vectorized::IColumn>::mutable_ptr<doris::vectorized::IColumn> const&, orc::TypeKind const&, orc::ColumnVectorBatch*, unsigned long) /home/zcp/repo_center/doris_master/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1124:16 #3 0x55ee63e97e7a in doris::Status doris::vectorized::OrcReader::_fill_doris_data_column<false>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, COW<doris::vectorized::IColumn>::mutable_ptr<doris::vectorized::IColumn>&, std::shared_ptr<doris::vectorized::IDataType const> const&, orc::Type const*, orc::ColumnVectorBatch*, unsigned long) /home/zcp/repo_center/doris_master/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1365:16 apache#4 0x55ee63b0e450 in doris::Status doris::vectorized::OrcReader::_orc_column_to_doris_column<false>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, COW<doris::vectorized::IColumn>::immutable_ptr<doris::vectorized::IColumn>&, std::shared_ptr<doris::vectorized::IDataType const> const&, orc::Type const*, orc::ColumnVectorBatch*, unsigned long) /home/zcp/repo_center/doris_master/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1532:5 apache#5 0x55ee63e99622 in doris::Status doris::vectorized::OrcReader::_fill_doris_data_column<false>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, COW<doris::vectorized::IColumn>::mutable_ptr<doris::vectorized::IColumn>&, std::shared_ptr<doris::vectorized::IDataType const> const&, orc::Type const*, orc::ColumnVectorBatch*, unsigned long) /home/zcp/repo_center/doris_master/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1410:9 apache#6 0x55ee63b0e450 in doris::Status doris::vectorized::OrcReader::_orc_column_to_doris_column<false>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, COW<doris::vectorized::IColumn>::immutable_ptr<doris::vectorized::IColumn>&, std::shared_ptr<doris::vectorized::IDataType const> const&, orc::Type const*, orc::ColumnVectorBatch*, unsigned long) /home/zcp/repo_center/doris_master/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1532:5 apache#7 0x55ee63ad4f86 in doris::vectorized::OrcReader::get_next_block_impl(doris::vectorized::Block*, unsigned long*, bool*) /home/zcp/repo_center/doris_master/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1714:13 apache#8 0x55ee63ad093b in doris::vectorized::OrcReader::get_next_block(doris::vectorized::Block*, unsigned long*, bool*) /home/zcp/repo_center/doris_master/doris/be/src/vec/exec/format/orc/vorc_reader.cpp:1547:5 ``` ### Solution [Fix] (orc-reader) Fix StringRef nullptr data in orc-reader. When string is empty in orc row batch, the data can point anything, maybe nullptr, StringRef has undefined behavior when data is nullptr. Related with apache#37845.
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run buildall |
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clang-tidy review says "All clean, LGTM! 👍" |
gavinchou
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Proposed changes
Backport #40857.