• unknown's avatar
    bug#10952 · 6116d017
    unknown authored
      "alter table from MyISAM to MERGE lost data without errors and warnings"
      Add new handlerton flag which prevent user from altering table storage
      engine to storage engines which would lose data. Both 'blackhole' and 
      'merge' are marked with the new flag.
      Tests included.
    
    
    mysql-test/r/blackhole.result:
      test for bug#10952
    mysql-test/r/merge.result:
      test for bug#10952
    mysql-test/t/blackhole.test:
      test for bug#10952
    mysql-test/t/merge.test:
      test for bug#10952
    sql/ha_blackhole.cc:
      Bug#10952
        shouldn't be able to alter a table into a blackhole
    sql/ha_myisammrg.cc:
      Bug#10952
        shouldn't be able to alter a table into a merge
    sql/handler.h:
      Bug#10952
        new handlerton flag
    sql/sql_table.cc:
      Bug#10952
        If alter is changing engine, check if new engine allows creating table
        via ALTER statement.
    6116d017
merge.test 12.8 KB