* thread #5: tid = 27483, 0x00007fa802f5104f libc.so.6`__GI_raise + 207, name = 'mserver5', stop reason = signal SIGABRT
    frame #0: 0x00007fa802f5104f libc.so.6`__GI_raise + 207
libc.so.6`__GI_raise:
->  0x7fa802f5104f <+207>: addq   $0x88, %rsp
    0x7fa802f51056 <+214>: movl   %r8d, %eax
    0x7fa802f51059 <+217>: popq   %rbx
    0x7fa802f5105a <+218>: retq
(lldb) bt
* thread #5: tid = 27483, 0x00007fa802f5104f libc.so.6`__GI_raise + 207, name = 'mserver5', stop reason = signal SIGABRT
  * frame #0: 0x00007fa802f5104f libc.so.6`__GI_raise + 207
    frame #1: 0x00007fa802f5247a libc.so.6`__GI_abort + 362
    frame #2: 0x00007fa802f49ea7 libc.so.6`__assert_fail_base + 279
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    frame #36: 0x00007fa80123b390 lib_sql.so`sql_relation2stmt(be=0x00007fa7f00b1a70, r=0x00007fa7f0188b30) + 125 at sql_gencode.c:467
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    frame #39: 0x00007fa801208297 lib_sql.so`SQLparser(c=0x00007fa801860328) + 4602 at sql_scenario.c:1113
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