| From: | Stephen Frost <sfrost(at)snowman(dot)net> |
|---|---|
| To: | Fabrízio de Royes Mello <fabriziomello(at)gmail(dot)com> |
| Cc: | Peter Eisentraut <peter_e(at)gmx(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Christopher Browne <cbbrowne(at)gmail(dot)com>, Hannu Krosing <hannu(at)2ndquadrant(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Dimitri Fontaine <dimitri(at)2ndquadrant(dot)fr>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Josh Berkus <josh(at)agliodbs(dot)com>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Re: Proposal: Store "timestamptz" of database creation on "pg_database" |
| Date: | 2013-01-07 13:42:32 |
| Message-ID: | 20130107134232.GW16126@tamriel.snowman.net |
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| Lists: | pgsql-hackers |
* Fabrízio de Royes Mello (fabriziomello(at)gmail(dot)com) wrote:
> Understood... a "COMMENT" is a database object, then if we add a creation
> time column to pg_description/shdescription tables how we track his
> creation time?
When it's NULL it "doesn't exist", in this case, when it transistions
from NULL, it becomes created. A transistion from non-NULL to non-NULL
would be an alter, and a transistion from non-NULL to NULL would be a
drop/remove.
Thanks,
Stephen
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