Gabriel39 opened a new pull request, #32966:
URL: https://github.com/apache/doris/pull/32966
## Proposed changes
When scanner meet this error below
```
W20240327 19:08:40.074436 3465831 status.h:380] meet error status:
[INTERNAL_ERROR]Merge block not match, self:[Nullable(Int64), Nullable(Int32),
UInt8], input:[Nullable(Int64), Nullable(Int32)],
0# doris::Status doris::Status::Error<6, true,
std::_cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >,
std::cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >
>(std::basic_string_view<char, std::char_traits<char> >,
std::cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>
>&&, std::_cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >&&) at
/home/zcp/repo_center/doris_branch-2.1/doris/be/src/common/status.h:379
1# doris::Status
doris::vectorized::MutableBlock::merge_impl<doris::vectorized::Block&>(doris::vectorized::Block&)
at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/core/block.h:534
2# doris::Status
doris::vectorized::MutableBlock::merge<doris::vectorized::Block&>(doris::vectorized::Block&)
at /home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/core/block.h:512
3#
doris::vectorized::ScannerScheduler::_scanner_scan(std::shared_ptr<doris::vectorized::ScannerContext>,
std::shared_ptr<doris::vectorized::ScanTask>) at
/home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/scanner_scheduler.cpp:278
4#
doris::vectorized::ScannerScheduler::submit(std::shared_ptr<doris::vectorized::ScannerContext>,
std::shared_ptr<doris::vectorized::ScanTask>)::$_1::operator()() const at
/home/zcp/repo_center/doris_branch-2.1/doris/be/src/vec/exec/scan/scanner_scheduler.cpp:162
```
query will be hang because the error status is not processed by scanner.
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