From: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
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To: | Noah Misch <noah(at)leadboat(dot)com> |
Cc: | Euler Taveira <euler(at)timbira(dot)com(dot)br>, Robert Haas <robertmhaas(at)gmail(dot)com>, Kuntal Ghosh <kuntalghosh(dot)2007(at)gmail(dot)com>, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Re: pg_dump ignoring information_schema tables which used in Create Publication. |
Date: | 2017-05-30 18:13:52 |
Message-ID: | 7910dc86-43ec-a776-f9df-dbce65eeb7f5@2ndquadrant.com |
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Lists: | pgsql-hackers |
On 5/29/17 22:14, Noah Misch wrote:
> On Fri, May 26, 2017 at 10:46:12PM -0300, Euler Taveira wrote:
>> 2017-05-26 17:52 GMT-03:00 Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>:
>>> You cannot publish a system catalog. But a user-created table in
>>> information_schema is not a system catalog.
>> Replication of information_schema tables works. However, pg_dump doesn't
>> include information_schema tables into CREATE PUBLICATION command
>> (user-defined information_schema tables aren't included in pg_dump even
>> *before* logical replication). IMO allow publish/subscribe of tables into
>> information_schema is harmless (they aren't special tables like catalogs).
>> Also, how many people would create real tables into information_schema?
>> Almost zero. Let's leave it alone. Since pg_dump doesn't document that
>> information_schema isn't dumped, I think we shouldn't document this for
>> logical replication.
> [Action required within three days. This is a generic notification.]
Unless there are any new insights, I propose to close this item as not
new and not worth fixing, per the above.
--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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