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  1. MariaDB Server
  2. MDEV-22462

Item_in_subselect::create_single_in_to_exists_cond(JOIN *, Item **, Item **): Assertion `false' failed.

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      Description

      We found an assertion fail that crash debug version of MariaDB.

      POC:

      CREATE TABLE v0 ( v1 INT ) ;
      INSERT INTO v0 ( v1 ) VALUES ( 9 ) ;
      UPDATE v0 SET v1 = 2 WHERE v1 IN ( SELECT v1 WHERE v1 = v1 OR ( v1 = -1 AND v1 = 28 ) ) ;
      INSERT INTO v0 ( v1 ) VALUES ( 60 ) , ( 0 ) ;
      SELECT RANK ( v1 ) OVER w , STD ( v1 ) OVER w FROM v0 WINDOW v2 AS ( PARTITION BY v1 ORDER BY v1 * 0 ) ;
      

      Stack dump:

      mysqld: /home/mysql/mariadb/sql/item_subselect.cc:2273: bool Item_in_subselect::create_single_in_to_exists_cond(JOIN *, Item **, Item **): Assertion `false' failed.
      200505  4:51:20 [ERROR] mysqld got signal 6 ;
      This could be because you hit a bug. It is also possible that this binary
      or one of the libraries it was linked against is corrupt, improperly built,
      or misconfigured. This error can also be caused by malfunctioning hardware.
       
      To report this bug, see https://mariadb.com/kb/en/reporting-bugs
       
      We will try our best to scrape up some info that will hopefully help
      diagnose the problem, but since we have already crashed,
      something is definitely wrong and this may fail.
       
      Server version: 10.5.3-MariaDB-debug
      key_buffer_size=134217728
      read_buffer_size=131072
      max_used_connections=2
      max_threads=153
      thread_count=3
      It is possible that mysqld could use up to
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 467925 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x7f971c000d78
      Attempting backtrace. You can use the following information to find out
      where mysqld died. If you see no messages after this, something went
      terribly wrong...
      stack_bottom = 0x7f9754ef4dc0 thread_stack 0x49000
      fil/fil0fil.cc:3410(fil_ibd_discover(unsigned long, Datafile&))[0x32d4681]
      sql/multi_range_read.cc:764(Mrr_ordered_index_reader::refill_buffer(bool))[0x13c0898]
      ??:0(__restore_rt)[0x7f976f537890]
      linux/raise.c:51(__GI_raise)[0x7f976d1e9e97]
      stdlib/abort.c:81(__GI_abort)[0x7f976d1eb801]
      assert/assert.c:89(__assert_fail_base)[0x7f976d1db39a]
      ??:0(__assert_fail)[0x7f976d1db412]
      sql/sql_alloc.h:39(ORAparse(THD*))[0x16a471f]
      sql/threadpool_common.cc:313(threadpool_process_request(THD*))[0x16af6d1]
      sql/sql_select.cc:28467(test_if_cheaper_ordering(st_join_table const*, st_order*, TABLE*, Bitmap<64u>, int, unsigned long long, int*, int*, unsigned long long*, unsigned int*, unsigned int*))[0x10075cc]
      sql/slave.cc:1868(is_network_error(unsigned int))[0xafc690]
      sql/log_event.h:2752(rpl_master_has_bug(Relay_log_info const*, unsigned int, bool, bool (*)(void const*), void const*))[0xb14a50]
      sql/slave.cc:2446(get_master_version_and_clock(st_mysql*, Master_info*))[0xafc436]
      /usr/local/mysql/bin/mysqld(_ZN13st_select_lex31optimize_unflattened_subqueriesEb+0xa29)[0x97e7b9]
      sql/sql_lex.cc:4541(fix_prepare_info_in_table_list(THD*, TABLE_LIST*))[0xd7d4f0]
      handler/ha_innodb.cc:19256(__cxx_global_var_init.1268)[0xa254ef]
      sql/sys_vars.ic:627(Sys_var_charptr_fscs::Sys_var_charptr(char const*, char const, int, long, unsigned long, CMD_LINE, char const, PolyLock*, sys_var::binlog_status_enum, bool (*)(PolyLock**, THD*, set_var*), bool (*)(sys_var::binlog_status_enum, THD, enum_var_type), char const))[0xa07b70]
      sql/set_var.h:258(_GLOBAL__sub_I_sys_vars.cc)[0x9fd70e]
      sql/sys_vars.cc:5730(__cxx_global_var_init.1236)[0xa099cb]
      sql/item.h:4563(Item_empty_string::Item_empty_string(THD*, char const*, unsigned int, charset_info_st const*))[0xedb6d1]
      sql/item.h:746(show_binlog_info_get_fields(THD*, List<Item>*))[0xedaec1]
      gcalc_slicescan.cc:0(__afl_fork_wait_loop)[0x1e8dfc6]
      nptl/pthread_create.c:463(start_thread)[0x7f976f52c6db]
      x86_64/clone.S:97(clone)[0x7f976d2cc88f]
       
      Trying to get some variables.
      Some pointers may be invalid and cause the dump to abort.
      Query (0x7f971c015054): UPDATE v0 SET v1 = 2 WHERE v1 IN ( SELECT v1 WHERE v1 = v1 OR ( v1 = -1 AND v1 = 28 ) )
      Connection ID (thread ID): 2868
      Status: NOT_KILLED
       
      Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off
       
      The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
      information that should help you find out what is causing the crash.
      Writing a core file...
      Working directory at /usr/local/mysql/data
      Resource Limits:
      Limit                     Soft Limit           Hard Limit           Units
      Max cpu time              unlimited            unlimited            seconds
      Max file size             unlimited            unlimited            bytes
      Max data size             unlimited            unlimited            bytes
      Max stack size            8388608              unlimited            bytes
      Max core file size        unlimited            unlimited            bytes
      Max resident set          unlimited            unlimited            bytes
      Max processes             unlimited            unlimited            processes
      Max open files            1048576              1048576              files
      Max locked memory         16777216             16777216             bytes
      Max address space         unlimited            unlimited            bytes
      Max file locks            unlimited            unlimited            locks
      Max pending signals       1030951              1030951              signals
      Max msgqueue size         819200               819200               bytes
      Max nice priority         0                    0
      Max realtime priority     0                    0
      Max realtime timeout      unlimited            unlimited            us
      Core pattern: co...
      

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            Assignee:
            psergei Sergei Petrunia
            Reporter:
            Ne0 Yongheng Chen
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              Dates

              Created:
              Updated:
              Resolved: