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  1. MariaDB Server
  2. MDEV-6193

Problems with multi-table updates that JOIN against read-only table

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 5.5.37, 10.0.10
    • 5.5.38, 10.0.12
    • None
    • None

    Description

      These items may be related to MDEV-5981 or MDEV-6139:

       
      drop table if exists t1, t2, t2_0; 
      CREATE TABLE `t1` ( 
        `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
        `a` int(11) DEFAULT NULL, 
        PRIMARY KEY (`id`) 
      ) ENGINE=MyISAM; 
       
      CREATE TABLE `t2_0` ( 
        `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
        `b` int(11) DEFAULT NULL, 
        PRIMARY KEY (`id`) 
      ) ENGINE=MyISAM; 
       
      CREATE TABLE `t2` ( 
        `id` int(10) unsigned NOT NULL AUTO_INCREMENT, 
        `b` int(11) DEFAULT NULL, 
        PRIMARY KEY (`id`) 
      ) ENGINE=MRG_MyISAM UNION=(`t2_0`); 
       
      FLUSH TABLES; 

       
      myisampack -f ./data/test/t2_0 
      myisamchk -rq ./data/test/t2_0 

      mysql 5.5.37-MariaDB (root) [test]> create view v2 as select * from t2;
      Query OK, 0 rows affected (0.01 sec)
      mysql 5.5.37-MariaDB (root) [test]> update t1 join v2 using (id) set t1.a=0;
      ERROR 1036 (HY000): Table 't2_0' is read only

      mysql 5.5.37-MariaDB (root) [test]> create view v2_0 as select * from t2_0;
      Query OK, 0 rows affected (0.01 sec)
      mysql 5.5.37-MariaDB (root) [test]> update t1 join v2_0 using (id) set t1.a=0;
      ERROR 1036 (HY000): Table 't2_0' is read only

      Attachments

        Activity

          Both of these items were reproduced using a binary built with the patch for MDEV-6139.

          kolbe Kolbe Kegel (Inactive) added a comment - Both of these items were reproduced using a binary built with the patch for MDEV-6139 .

          Assigned to Sanja as a part of the listed collection.
          Please make sure to set the fix version(s) appropriately when you know in which version the bug group will be fixed.

          elenst Elena Stepanova added a comment - Assigned to Sanja as a part of the listed collection. Please make sure to set the fix version(s) appropriately when you know in which version the bug group will be fixed.

          CREATE TABLE t1 (
          id int(10) unsigned,
          a int(11)
          ) ENGINE=MyISAM;
          CREATE TABLE t3 (
          id int(10) unsigned,
          b int(11)
          ) ENGINE=MyISAM;
          CREATE TABLE t2 (
          id int(10) unsigned,
          b int(11)
          ) ENGINE=MRG_MyISAM UNION=(t3);
          let $MYSQLD_DATADIR= `select @@datadir`;
          --exec $MYISAMPACK -f $MYSQLD_DATADIR/test/t3
          --exec $MYISAMCHK -rq $MYSQLD_DATADIR/test/t3
          update t1 join t2 using (id) set t1.a=t2.b;
          create view v2 as select * from t2;
          update t1 join v2 using (id) set t1.a=0;

          create view v1 as select * from t3;
          update t1 join v1 using (id) set t1.a=0;

          drop view v1, v2;
          drop table t2, t3, t1;

          sanja Oleksandr Byelkin added a comment - CREATE TABLE t1 ( id int(10) unsigned, a int(11) ) ENGINE=MyISAM; CREATE TABLE t3 ( id int(10) unsigned, b int(11) ) ENGINE=MyISAM; CREATE TABLE t2 ( id int(10) unsigned, b int(11) ) ENGINE=MRG_MyISAM UNION=(t3); let $MYSQLD_DATADIR= `select @@datadir`; --exec $MYISAMPACK -f $MYSQLD_DATADIR/test/t3 --exec $MYISAMCHK -rq $MYSQLD_DATADIR/test/t3 update t1 join t2 using (id) set t1.a=t2.b; create view v2 as select * from t2; update t1 join v2 using (id) set t1.a=0; create view v1 as select * from t3; update t1 join v1 using (id) set t1.a=0; drop view v1, v2; drop table t2, t3, t1;

          Second part of the test is repatable in 5.3.

          sanja Oleksandr Byelkin added a comment - Second part of the test is repatable in 5.3.

          the patch sent for review

          sanja Oleksandr Byelkin added a comment - the patch sent for review

          People

            sanja Oleksandr Byelkin
            kolbe Kolbe Kegel (Inactive)
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            Dates

              Created:
              Updated:
              Resolved:

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