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table.cc:

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Try to open an old 5.0 table name
  if encoded name doesn't exist.
  This makes SELECT working without having
  to rename tables with tricky characters
  in name into 5.1 format (simpliefies upgrade).
This commit is contained in:
bar@mysql.com
2006-01-24 17:33:39 +04:00
parent 57c432b94e
commit aeebffc96b
1 changed files with 26 additions and 1 deletions
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27
sql/table.cc
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@@ -270,7 +270,32 @@ int open_table_def(THD *thd, TABLE_SHARE *share, uint db_flags)
strxmov(path, share->normalized_path.str, reg_ext, NullS);
if ((file= my_open(path, O_RDONLY | O_SHARE, MYF(0))) < 0)
goto err_not_open;
{
/* Try unecoded 5.0 name */
uint length;
strxnmov(path, sizeof(path)-1,
mysql_data_home, "/", share->db.str, "/",
share->table_name.str, reg_ext, NullS);
length= unpack_filename(path, path) - reg_ext_length;
/*
The following is a safety test and should never fail
as the old file name should never be longer than the new one.
*/
DBUG_ASSERT(length <= share->normalized_path.length);
/*
If the old and the new names have the same length,
then table name does not have tricky characters,
so no need to check the old file name.
*/
if (length == share->normalized_path.length ||
((file= my_open(path, O_RDONLY | O_SHARE, MYF(0))) < 0))
goto err_not_open;
/* Unencoded 5.0 table name found */
path[length]= '\0'; // Remove .frm extension
strmov(share->normalized_path.str, path);
share->normalized_path.length= length;
}
error= 4;
if (my_read(file,(byte*) head, 64, MYF(MY_NABP)))