Re: ToDo: show size of partitioned table

2018-06-01 17:15 GMT+02:00 Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>:

> On Fri, Jun 1, 2018 at 12:56 AM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
> wrote:
> > Hi
> >
> > postgres=# SELECT count(*) from data;
> > ┌─────────┐
> > │ count │
> > ╞═════════╡
> > │ 1000000 │
> > └─────────┘
> > (1 row)
> >
> > \dt+ can display actual size of partitioned table data - now zero is
> > displayed
> >
> > postgres=# \dt+ data
> > List of relations
> > ┌────────┬──────┬───────┬───────┬─────────┬─────────────┐
> > │ Schema │ Name │ Type │ Owner │ Size │ Description │
> > ╞════════╪══════╪═══════╪═══════╪═════════╪═════════════╡
> > │ public │ data │ table │ pavel │ 0 bytes │ │
> > └────────┴──────┴───────┴───────┴─────────┴─────────────┘
> > (1 row)
>
> I think we should at least display "Type" as "partitioned table" for a
> partitioned table, so that it's easy to understand why the size is 0;
> partitioned tables do not hold any data by themselves.
>

should be.

Some is missing still - there is not any total size across all partitions.

maybe new command like

\dtP+ .. show partitioned tables and their size

Regards

Pavel

> --
> Best Wishes,
> Ashutosh Bapat
> EnterpriseDB Corporation
> The Postgres Database Company
>