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  1. MariaDB Server
  2. MDEV-3682

LP:881318 - Crash in JOIN_CACHE::write_record_data with derived_merge + semijoin + innodb + nested views

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Fixed
    • None
    • None
    • None

    Description

      backtrace:

      #5 0x007b7836 in __memcpy_ssse3 () from /lib/libc.so.6
      #6 0x082f2381 in JOIN_CACHE::write_record_data (this=0x9b0439b8, link=0x0, is_full=0xa1571f1b) at sql_join_cache.cc:1421
      #7 0x082f2632 in JOIN_CACHE::put_record (this=0x9b0439b8) at sql_join_cache.cc:1530
      #8 0x0833daf8 in sub_select_cache (join=0xa162fe08, join_tab=0x9b042f1c, end_of_records=false) at sql_select.cc:14916
      #9 0x0833e8c9 in evaluate_null_complemented_join_record (join=0xa162fe08, join_tab=0x9b042d18) at sql_select.cc:15434
      #10 0x0833e05f in sub_select (join=0xa162fe08, join_tab=0x9b042b14, end_of_records=false) at sql_select.cc:15167
      #11 0x0833d709 in do_select (join=0xa162fe08, fields=0xa82bcdc, table=0x0, procedure=0x0) at sql_select.cc:14785
      #12 0x08321f61 in JOIN::exec (this=0xa162fe08) at sql_select.cc:2679
      #13 0x0832278e in mysql_select (thd=0xa82a208, rref_pointer_array=0xa82bd84, tables=0xa1613d70, wild_num=1, fields=..., conds=0xa1614ff8, og_num=0,
      order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147764736, result=0xa162db70, unit=0xa82b968, select_lex=0xa82bc48)
      at sql_select.cc:2900
      #14 0x0831a55f in handle_select (thd=0xa82a208, lex=0xa82b90c, result=0xa162db70, setup_tables_done_option=0) at sql_select.cc:283
      #15 0x082b4d18 in execute_sqlcom_select (thd=0xa82a208, all_tables=0xa1613d70) at sql_parse.cc:5112
      #16 0x082abad5 in mysql_execute_command (thd=0xa82a208) at sql_parse.cc:2250
      #17 0x082b7347 in mysql_parse (thd=0xa82a208, rawbuf=0xa1613bb0 "SELECT *\nFROM t3\nLEFT JOIN v5\nON ( t3.a = v5.a )\nWHERE t3.b IN ( SELECT b FROM t4 )",
      length=83, found_semicolon=0xa1573228) at sql_parse.cc:6112
      #18 0x082a9724 in dispatch_command (command=COM_QUERY, thd=0xa82a208, packet=0xa8828d9 "", packet_length=83) at sql_parse.cc:1221
      #19 0x082a8b7f in do_command (thd=0xa82a208) at sql_parse.cc:916
      #20 0x082a5b63 in handle_one_connection (arg=0xa82a208) at sql_connect.cc:1191
      #21 0x00821919 in start_thread () from /lib/libpthread.so.0
      #22 0x0076acce in clone () from /lib/libc.so.6

      minimal switch: derived_merge=on,semijoin=on

      full switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=off,derived_merge=on,derived_with_keys=off,firstmatch=off,loosescan=off,materialization=off,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=off,semijoin_with_cache=off,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on

      explain:

      id select_type table type possible_keys key key_len ref rows Extra
      1 PRIMARY t3 system NULL NULL NULL NULL 1
      1 PRIMARY t1 ALL NULL NULL NULL NULL 0 Using where; Start temporary
      1 PRIMARY <derived4> ALL NULL NULL NULL NULL 2
      1 PRIMARY t4 ALL NULL NULL NULL NULL 1 Using where; End temporary; Using join buffer (flat, BNL join)
      4 DERIVED t2 ALL NULL NULL NULL NULL 1

      bzr version-info
      revision-id: <email address hidden>
      date: 2011-10-24 12:54:28 -0700
      build-date: 2011-10-25 12:05:43 +0300
      revno: 3249
      branch-nick: maria-5.3

      test case:

      --source include/have_innodb.inc
      CREATE TABLE t1 ( a varchar(1) );

      CREATE TABLE t2 ( b varchar(1) ) ENGINE=InnoDB;

      CREATE TABLE t3 ( a varchar(1), b varchar(1) );
      INSERT INTO t3 VALUES ('c','c');

      CREATE TABLE t4 ( b varchar(1) ) ENGINE=InnoDB;

      CREATE ALGORITHM=TEMPTABLE VIEW v2 AS SELECT * FROM t2;
      CREATE VIEW v5 AS SELECT t1.* FROM t1, v2 ;

      SET SESSION optimizer_switch='derived_merge=on,semijoin=on';

      SELECT *
      FROM t3
      LEFT JOIN v5
      ON ( t3.a = v5.a )
      WHERE t3.b IN ( SELECT b FROM t4 );

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            igor Igor Babaev (Inactive)
            philipstoev Philip Stoev (Inactive)
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              Created:
              Updated:
              Resolved:

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