Re: Global snapshots
| От | movead.li@highgo.ca |
|---|---|
| Тема | Re: Global snapshots |
| Дата | |
| Msg-id | 2020061917031834329360@highgo.ca обсуждение исходный текст |
| Ответ на | Global snapshots (Stas Kelvich <s.kelvich@postgrespro.ru>) |
| Ответы |
Re: Global snapshots
|
| Список | pgsql-hackers |
>> would like to know if the patch related to CSN based snapshot [2] is a
>> precursor for this, if not, then is it any way related to this patch
>> because I see the latest reply on that thread [2] which says it is an
>> infrastructure of sharding feature but I don't understand completely
>> whether these patches are related?
>I need some time to study this patch.. At first sight it is different.
This patch[2] is almost base on [3], because I think [1] is talking about 2PC
and FDW, so this patch focus on CSN only and I detach the global snapshot
part and FDW part from the [1] patch.
I notice CSN will not survival after a restart in [1] patch, I think it may not the
right way, may be it is what in last mail "Needs guarantees of monotonically
increasing of the CSN in the case of an instance restart/crash etc" so I try to
add wal support for CSN on this patch.
That's why this thread exist.
Regards,
Highgo Software (Canada/China/Pakistan)
URL : www.highgo.ca
EMAIL: mailto:movead(dot)li(at)highgo(dot)ca
URL : www.highgo.ca
EMAIL: mailto:movead(dot)li(at)highgo(dot)ca
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