On Mon, 2020-11-30 at 10:54 -0600, Justin Pryzby wrote:
> This makes toast tables a bit less special and easier to inspect.
> 
> postgres=# \dtS+ pg_toast.pg_toast_2619
>  pg_toast | pg_toast_2619 | toast table | pryzbyj | permanent   | heap        
>   | 56 kB | 
> 
> This follows commit from last year:
> | eb5472da9 make \d pg_toast.foo show its indices ; and, \d toast show its 
> main table

This would indeed be convenient.

The patch passes regression tests.

While playing around with it, I found the following oddity:

regression=# \dtS+ pg_toast.pg_toast_30701
                                            List of relations
  Schema  |      Name      |    Type     |  Owner  | Persistence | Access 
Method |  Size   | Description 
----------+----------------+-------------+---------+-------------+---------------+---------+-------------
 pg_toast | pg_toast_30701 | toast table | laurenz | permanent   | heap         
 | 0 bytes | 
(1 row)

regression=# \dtS pg_toast.pg_toast_30701
                 List of relations
  Schema  |      Name      |    Type     |  Owner  
----------+----------------+-------------+---------
 pg_toast | pg_toast_30701 | toast table | laurenz
(1 row)

regression=# \dt pg_toast.pg_toast_30701
Did not find any relation named "pg_toast.pg_toast_30701".

Now this doesn't seem right.  To my understanding, \dtS should do the same as 
\dt,
except that it should also search in "pg_catalog" if no schema was provided.

Another thing that is missing is tab completion for

regression=# \dtS pg_toast.pg_

This should work just like for \d and \dS.


Both of these effects can also be observed with \di and toast indexes.

Yours,
Laurenz Albe



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