• unknown's avatar
    WL#5370 Keep forward-compatibility when changing · 9d681150
    unknown authored
            'CREATE TABLE IF NOT EXISTS ... SELECT' behaviour
    BUG#55474, BUG#55499, BUG#55598, BUG#55616 and BUG#55777 are fixed
    in this patch too.
    
    This is the 5.1 part.
    It implements:
    - if the table exists, binlog two events: CREATE TABLE IF NOT EXISTS
      and INSERT ... SELECT
    
    - Insert nothing and binlog nothing on master if the existing object
      is a view. It only generates a warning that table already exists.
    
    
    mysql-test/r/trigger.result:
      Ather this patch, 'CREATE TABLE IF NOT EXISTS ... SELECT' will not
      insert anything if the creating table already exists and is a view.
    sql/sql_class.h:
      Declare virtual function write_to_binlog() for select_insert.
      It's used to binlog 'create select'
    sql/sql_insert.cc:
      Implement write_to_binlog();
      Use write_to_binlog() instead of binlog_query() to binlog the statement.
      if the table exists, binlog two events: CREATE TABLE IF NOT EXISTS
      and INSERT ... SELECT
    sql/sql_lex.h:
      Declare create_select_start_with_brace and create_select_pos.
      They are helpful for binlogging 'create select'
    sql/sql_parse.cc:
      Do nothing on master if the existing object is a view.
    sql/sql_yacc.yy:
      Record the relative postion of 'SELECT' in the 'CREATE ...SELECT' statement.
      Record whether there is a '(' before the 'SELECT' clause.
    9d681150
sql_lex.h 60.2 KB