Hi, Alexey!
I see :)
Thanks!
On Feb 21, Alexey Botchkov wrote:
> > This seems fairly obvious, that it should.
> > But why MySQL doesn't have this bug (despite not resetting
> > m_extra_prepare_for_update)?
>
> The difference is in the ha_partition::late_extra_cache() function
> MySQL:
> if (m_extra_prepare_for_update)
> {
> (void) file->extra(HA_EXTRA_PREPARE_FOR_UPDATE);
> }
>
> Maria:
> if (m_extra_prepare_for_update)
> {
> DBUG_ASSERT(m_extra_cache);
> (void) file->extra(HA_EXTRA_PREPARE_FOR_UPDATE);
> }
>
> And that DBUG_ASSERT() actually does the crash.
>
> MySQL just blindly does the file->extra(HA_EXTRA_PREPARE_FOR_UPDATE)
> even for that 'SELECT * FROM t2;' query.
>
> Best regards.
> HF
>
Regards,
Sergei
Chief Architect MariaDB
and secur...@mariadb.org
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