Commit 726917a2 authored by unknown's avatar unknown
Browse files

Fix for BUG#3415 "mysqlbinlog loses a USE command when LOAD DATA INFILE is involved": 

if you are printing LOAD DATA INFILE and its USE as comments, don't update 'last_db' (because you
have not actually changed the db in the server).


sql/log_event.cc:
  if you are printing LOAD DATA INFILE and its USE as comments, don't update 'last_db' (because you
  have not actually changed the db in the server).
parent 1f50a034

sql/log_event.cc

+13 −6
Original line number Diff line number Diff line
@@ -891,15 +891,15 @@ void Query_log_event::print(FILE* file, bool short_form, char* last_db) 
	    (ulong) thread_id, (ulong) exec_time, error_code);

  }



  bool same_db = 0;

  bool different_db= 1;



  if (db && last_db)

  {

    if (!(same_db = !memcmp(last_db, db, db_len + 1)))

    if (different_db= memcmp(last_db, db, db_len + 1))

      memcpy(last_db, db, db_len + 1);

  }

  

  if (db && db[0] && !same_db)

  if (db && db[0] && different_db)

    fprintf(file, "use %s;\n", db);

  end=int10_to_str((long) when, strmov(buff,"SET TIMESTAMP="),10);

  *end++=';';
@@ -1324,14 +1324,21 @@ void Load_log_event::print(FILE* file, bool short_form, char* last_db, 
	    thread_id, exec_time);

  }



  bool same_db = 0;

  bool different_db= 1;

  if (db && last_db)

  {

    if (!(same_db = !memcmp(last_db, db, db_len + 1)))

    /*

      If the database is different from the one of the previous statement, we

      need to print the "use" command, and we update the last_db.

      But if commented, the "use" is going to be commented so we should not

      update the last_db.

    */

    if ((different_db= memcmp(last_db, db, db_len + 1)) &&

        !commented)

      memcpy(last_db, db, db_len + 1);

  }

  

  if (db && db[0] && !same_db)

  if (db && db[0] && different_db)

    fprintf(file, "%suse %s;\n", 

            commented ? "# " : "",

            db);