On 04/30/2013 04:39 PM, Wolfgang Keller wrote:
> It hit me today that a 1:n relationship can't be implemented just by a
> single foreign key constraint if n>0. I must have been sleeping very
> deeply not to notice this.
>
> E.g. if there is a table "list" and another table "list_item" and the
> rel
On 06/20/2013 12:40 PM, gmb wrote:
> Hi all
> I just want to confirm something regarding UNNEST function used with arrays.
> I cannot see that it is specifically mentioned in the documentation , but
> maybe because it is obvious.
>
> Is the order of the result guaranteed to be the order of the arra
On 06/20/2013 01:00 PM, gmb wrote:
> Can you please give me an example of how the order is specified?
> I want the result of the UNNEST to be in the order of the array field
> E.g.
> SELECT UNNEST ( ARRAY[ 'abc' , 'ggh' , '12aa' , '444f' ] );
> Should always return:
>
> unnest
>
> abc
>
On 07/03/2013 11:12 AM, Dev Kumkar wrote:
> All unquoted identifiers are assumed by PostgreSQL to be lower case by
> default. This means
> - SELECT MY_COLUMN FROM my_table
> - SELECT my_column FROM my_table
> - SELECT my_column as MY_COLUMN FROM my_table
> All refer to my_column and has column name
On 07/22/2013 04:05 PM, ldrlj1 wrote:
> Postgres 9.2.4.
>
> I have two columns, approved and comments. Approved is a boolean with no
> default value and comments is a character varying (255) and nullable.
>
> I am trying to create a constraint that will not allow a row to be entered
> if approved i
