Обсуждение: dbsize command
In past versions there was a contrib/dbsize command that would tell you how much storage space was being taken by a table. Is that is still a supported feature in 8.3, and if so what is the syntax or where is the documentation on how to use it?
Greg Reynolds
On Mon, 23 Jun 2008, Reynolds, Gregory A wrote: > In past versions there was a contrib/dbsize command that would tell you > how much storage space was being taken by a table. Is that is still a > supported feature in 8.3, and if so what is the syntax or where is the > documentation on how to use it? The low-level functions are documented at http://www.postgresql.org/docs/current/static/functions-admin.html#FUNCTIONS-ADMIN-DBSIZE Check out http://wiki.postgresql.org/wiki/Disk_Usage for some samples of how to actually use them. -- * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD
On Mon, 2008-06-23 at 10:50 -0700, Reynolds, Gregory A wrote: > In past versions there was a contrib/dbsize command that would tell > you how much storage space was being taken by a table. Is that is > still a supported feature in 8.3, and if so what is the syntax or > where is the documentation on how to use it? There are a series of functions in the database core that will tell you this now. http://www.postgresql.org/docs/8.3/interactive/functions-admin.html -- Brad Nicholson 416-673-4106 Database Administrator, Afilias Canada Corp.
Brad Nicholson wrote: > On Mon, 2008-06-23 at 10:50 -0700, Reynolds, Gregory A wrote: >> In past versions there was a contrib/dbsize command that would tell >> you how much storage space was being taken by a table. Is that is >> still a supported feature in 8.3, and if so what is the syntax or >> where is the documentation on how to use it? > > There are a series of functions in the database core that will tell you > this now. > > http://www.postgresql.org/docs/8.3/interactive/functions-admin.html > This is what I use: SELECT pg_size_pretty(pg_database_size(current_database())); Found it a while back on pg-general. -salman
On Monday 23. June 2008, salman wrote:
>This is what I use: SELECT
>pg_size_pretty(pg_database_size(current_database()));
Great, I remember that I saw it, but couldn't remember the command. Now
I've made a function:
CREATE OR REPLACE FUNCTION db_size() RETURNS TEXT AS $$
SELECT pg_size_pretty(pg_database_size(current_database()));
$$ LANGUAGE sql STABLE;
pgslekt=> select db_size();
db_size
---------
63 MB
(1 row)
--
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