Re: proposal - psql - show longest tables

On Sun, Jul 21, 2013 at 12:47 AM, Pavel Stehule <pavel.stehule@gmail.com> wrote:
> Hello all
>
> I very often use a little bit adjusted psql system queries to
> detection TOP N sized tables. I am thinking so it can be useful for
> all users
>
> I propose a few new commands
>
> \dts [N|size] ... show N largest tables | show tables larger than size
> ordered by size
> \dis [N|size] ... show N largest indexes | show indexes larger than
> size ordered by size
> \dtst [N|size] ... show N largest total size | show tables where total
> size is larger than size ordered by total size
> \dtr [N]   ... show N largest tables (ordered by rows)
>
> example:
>
> \dts 10  --- top 10 tables ordered by size
> \dts 10MB -- tables larger than 10MB ordered by size
>
>  Schema |    Name     | Type  |    Owner    | Size
> --------+-------------+-------+-------------+-------+-------------
>  public | eshop_users | table | eshop_owner | 16 kB
>  public | zamestnanci | table | eshop_owner | 16 kB
>
> What do you think about this proposal? Comments, notes?

I think our \d commands are in inscrutable morass of indecipherable
gobbledygook as it is, and this is only one more step down the road to
complete insanity.  :-(

Rather than just continuing to add more imposible-to-remember syntax,
we really need a better design here.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company