On Wed, Oct 30, 2019 at 9:43 AM Antonin Houska <ah@cybertec.at> wrote:
> 5. In the first session, FlushBuffer()->TerminateBufferIO() will not clear
> BM_DIRTY because MarkBufferDirtyHint() has eventually set
> BM_JUST_DIRTIED. Thus the hint bit change itself will be written by the next
> call of FlushBuffer(). However page LSN is hasn't been updated so the
> requirement that WAL must be flushed first is not met.
This part confuses me. Are you saying that MarkBufferDirtyHint() can
set BM_JUST_DIRTIED without setting BM_DIRTY?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
