From: | Beena Emerson <memissemerson(at)gmail(dot)com> |
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To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Support for N synchronous standby servers - take 2 |
Date: | 2015-05-18 11:43:19 |
Message-ID: | 1431949399936-5849712.post@n5.nabble.com |
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Lists: | pgsql-hackers |
> As proposed, this feature does not bring us really closer to quorum
> commit, and AFAIK this is what we are more or less aiming at recalling
> previous discussions. Particularly with the syntax proposed above, it
> is not possible to do some OR conditions on subgroups of nodes, the
> list of nodes is forcibly using AND because it is necessary to wait
> for all the subgroups. Also, users may want to track nodes from the
> same group with different application_name.
The patch assumes that all standbys of a group share a name and so the "OR"
condition would be taken care of that way.
Also, since uniqueness of standby_name cannot be enforced, the same name
could be repeated across groups!.
Regards,
Beena
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Beena Emerson
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