Обсуждение: Bug or Feature?

Hey guys,

I found this interesting…

test=# create table t ( c char);

CREATE TABLE

test =# \d t

         Table "public.t"

 Column |     Type     | Modifiers

--------+--------------+-----------

 c      | character(1) |

test =# alter table t drop column c;

ALTER TABLE

test =# \d t

     Table "public.t"

 Column | Type | Modifiers

--------+------+-----------

test =# select * from t;

--

(0 rows)

test =# create table t2 ();

CREATE TABLE

test =# select * from t2;

--

(0 rows)

I mean, we have a table with nothing on it.  Of course this maybe useful if like to check if an object exists in pg_class for some reasons.  But nah… we can have other workarounds for that.  Is this allowed in SQL?

Thanks,

herbert