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  1. MariaDB Server
  2. MDEV-37642

Server crash at JOIN::optimize_inner()

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    Description

      PoC:

      SELECT ( WITH x ( x ) AS ( SELECT 1 ) SELECT * FROM x WHERE x IN ( SELECT ( WITH x AS ( SELECT 1 ) SELECT x FROM x GROUP BY x IN ( SELECT x FROM x ) ) FROM ( SELECT 'x' ) x ) ) x
      

      docker log:

      #0 0x64d876e9cd79 (_ZN4JOIN14optimize_innerEv+0x5ac9)
      #1 0x64d876e8af8b (_ZN4JOIN8optimizeEv+0x13b)
      #2 0x64d876dcfeac (_ZN13st_select_lex31optimize_unflattened_subqueriesEb+0x69c)
      #3 0x64d876e8b303 (_ZN4JOIN15optimize_stage2Ev+0x283)
      #4 0x64d876e99fab (_ZN4JOIN14optimize_innerEv+0x2cfb)
      #5 0x64d876e8af8b (_ZN4JOIN8optimizeEv+0x13b)
      #6 0x64d876dcfeac (_ZN13st_select_lex31optimize_unflattened_subqueriesEb+0x69c)
      #7 0x64d876e940d1 (_ZN4JOIN15optimize_stage2Ev+0x9051)
      #8 0x64d876e99fab (_ZN4JOIN14optimize_innerEv+0x2cfb)
      #9 0x64d876e8af8b (_ZN4JOIN8optimizeEv+0x13b)
      #10 0x64d876e80c04 (_Z12mysql_selectP3THDP10TABLE_LISTR4ListI4ItemEPS4_jP8st_orderS9_S7_S9_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x514)
      #11 0x64d876e80635 (_Z13handle_selectP3THDP3LEXP13select_resulty+0x265)
      #12 0x64d876e20fc8 (_ZL21execute_sqlcom_selectP3THDP10TABLE_LIST+0x698)
      #13 0x64d876e17095 (_Z21mysql_execute_commandP3THDb+0x3f65)
      #14 0x64d876e0c485 (_Z11mysql_parseP3THDPcjP12Parser_state+0x345)
      #15 0x64d876e089d1 (_Z16dispatch_command19enum_server_commandP3THDPcjb+0x16b1)
      #16 0x64d876e0ccd1 (_Z10do_commandP3THDb+0x4b1)
      #17 0x64d877042b74 (_Z24do_handle_one_connectionP7CONNECTb+0x2a4)
      #18 0x64d8770427a3 (handle_one_connection+0xd3)
      #19 0x64d87770b0b4 (pfs_spawn_thread+0x104)
      #20 0x725838e5b609 (start_thread+0xd9)
      #21 0x725838b7d353 (clone+0x43)
      

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              Unassigned Unassigned
              Yuxiao Guo Yuxiao Guo
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              Dates

                Created:
                Updated:
                Resolved:

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