Egor Egorov writes:
>
> Zdravo!
>
> Hi,
>
> I'm trying to make use of the new(ish) merge table
> type, and am running into two problems. The first is
> unexpected behaviour, the second is a straight MySQL
> server crash. I have tested 3.23.47, 3.23.49 and
> 3.23.51 with similar results. Details below refer to
> 3.23.51. I have also tested on Darwin (MacOS X 10.1.3)
> and Linux (RedHat 7.3, kernel 2.4.18), with the same
> results. Both deal with the same query type and
> datasets.
>
[skip]
>
> Thanks,
> --
> Paul Ripke
> stixpjr @ yahoo . com . au
>
Hi!
Thank you for your bug report.
Regarding inconsistent values returned for MERGE tables, please refer
to our manual on how are UNIQUE values treated with MERGE.
Regarding a bug that crashes MySQL, this is a patch that fixes it:
===== sql/opt_sum.cc 1.17 vs edited =====
*** /tmp/opt_sum.cc-1.17-24218 Fri Apr 12 21:35:41 2002
--- edited/sql/opt_sum.cc Sat Jun 15 20:34:24 2002
***************
*** 152,162 ****
error=table->file->index_last(table->record[0]) !=0;
else
{
! (void) table->file->index_read(table->record[0], key_buff,
ref.key_length,
HA_READ_AFTER_KEY);
! error=table->file->index_prev(table->record[0]) ||
! key_cmp(table,key_buff,ref.key,ref.key_length);
}
if (table->key_read)
{
--- 152,163 ----
error=table->file->index_last(table->record[0]) !=0;
else
{
! error= table->file->index_read(table->record[0], key_buff,
ref.key_length,
HA_READ_AFTER_KEY);
! if (!error)
! error=table->file->index_prev(table->record[0]) ||
! key_cmp(table,key_buff,ref.key,ref.key_length);
}
if (table->key_read)
{
--
Regards,
__ ___ ___ ____ __
/ |/ /_ __/ __/ __ \/ / Mr. Sinisa Milivojevic <[EMAIL PROTECTED]>
/ /|_/ / // /\ \/ /_/ / /__ MySQL AB, Fulltime Developer
/_/ /_/\_, /___/\___\_\___/ Larnaca, Cyprus
<___/ www.mysql.com
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