`Can't create/write to file' Error
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If you get an error for some queries of type:
Can't create/write to file '\\sqla3fe_0.ism'.
this means that MySQL can't create a temporary file for the result set
in the given temporary directory. (The above error is a typical error
message on Windows, and the Unix error message is similar.) The fix is
to start `mysqld' with `--tmpdir=path' or to add to your option file:
[mysqld]
tmpdir=C:/temp
assuming that the `c:\\temp' directory exists. Note:Option files.
Check also the error code that you get with `perror'. One reason may
also be a disk full error;
shell> perror 28
Error code 28: No space left on device