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Here is the example of the command that make cpimport unhappy.
root@f7de54e609ac:/ext/ch-ds# cpimport -r10 -w10 -E'"' -c20000000 -b10 -e20000 -s',' test hits ./hits_partial_col_set.csv
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/usr/include/c++/7/bits/stl_vector.h:797: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = std::__cxx11::basic_string<char>; _Alloc = std::allocator<std::__cxx11::basic_string<char> >; std::vector<_Tp, _Alloc>::reference = std::__cxx11::basic_string<char>&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion '__builtin_expect(__n < this->size(), true)' failed.
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Here is the stack trace:
(gdb) bt
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#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
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#1 0x00007fe2651a6801 in __GI_abort () at abort.c:79
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#2 0x0000560604579d4d in std::__replacement_assert (__condition=0x5606045b0688 "__builtin_expect(__n < this->size(), true)", __function=<synthetic pointer>, __line=797, __file=0x5606045b06b8 "/usr/include/c++/7/bits/stl_vector.h") at /usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:472
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#3 std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::operator[] (__n=20, this=<synthetic pointer>) at /usr/include/c++/7/bits/stl_vector.h:797
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#4 WriteEngine::WESplitterApp::invokeCpimport (this=0x7ffc0bb87da0) at /data/buildbot/bb-worker/ubuntu18/mariadb-columnstore-engine/writeengine/splitter/we_splitterapp.cpp:495
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#5 0x000056060457a211 in WriteEngine::WESplitterApp::WESplitterApp (this=0x7ffc0bb87da0, CmdArgs=...) at /data/buildbot/bb-worker/ubuntu18/mariadb-columnstore-engine/writeengine/splitter/we_splitterapp.cpp:80
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#6 0x000056060456d4c0 in main (argc=<optimized out>, argv=0x7ffc0bb88b18) at /data/buildbot/bb-worker/ubuntu18/mariadb-columnstore-engine/writeengine/splitter/we_splitterapp.cpp:613
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CS allocates 20 elements for the parameters in we_splitterapp.cpp around line 495 and then failed assertion causes SIGABORT to be sent to cpimport.
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