Re: REFERENCE problem with parent_table - Mailing list pgsql-general

From Richard Broersma Jr
Subject Re: REFERENCE problem with parent_table
Date
Msg-id 20060815195206.20689.qmail@web31804.mail.mud.yahoo.com
Whole thread Raw
In response to Re: REFERENCE problem with parent_table  (gustavo halperin <ggh.develop@gmail.com>)
List pgsql-general
> > it looks like the syntax here is a little off from what is defined by:
> > http://www.postgresql.org/docs/8.1/interactive/sql-createtable.html
> >
> > CREATE TABLE like_id_1 ( id    smallint like id_names,
> >                          name  text     like id_name ) with oids ;
> >
> Are you sure, I think that you are wrong.  Operator "LIKE" is like a
> operator for a "table_constraint", I mean, is wrote in a new line, like
> a new column, and isn't property or part of any column.  More over, in
> the documentation is wrote: "/The LIKE clause specifies a table from
> which the new table automatically copies all column names, their data
> types, and their not-null constraints./", but is like  the operator
> "REFERENCE" see the tables "like_id_1" empty (see below) or maybe is a
> bug in posgresql.
> /    database=# insert into like_id_1 values (1,'hello');
>     INSERT 157581 1
>     database=# select * from like_id_1;
>      id | name
>     ----+--------
>       1 | hello
>     (1 row)
>     database=# CREATE TABLE ref_1 ( id smallint CONSTRAINT the_id
> REFERENCES like_id_1 (id) );
>     ERROR:  there is no unique constraint matching given keys for
> referenced table "like_id_1"/

You are correct, I miss-spoke.  :o)

Regards,

Richard Broersma Jr.

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