Daniel Verite wrote:
> Gregory Stark wrote:
>
>> Is it the hierarchical query ability you're looking for or pivot?
>> The former we are actually getting in 8.4.
>> AFAIK even in systems with pivot you still have to
>> declare a fixed list of columns in advance anyways.
>> Do you see a system where it works differently?
>
> MS-Access SQL has a TRANSFORM clause that allows for crosstab queries
> without the need to know in advance the number of columns:
> http://msdn.microsoft.com/en-us/library/bb208956.aspx
>
> As for Oracle, it wasn't possible until recently but now 11g has the
> PIVOT clause:
> http://www.oracle.com/technology/pub/articles/oracle-database-11g-top-f
> eatures/11g-pivot.html
>
> In contrast of these clauses, PG's contrib/tablefunc looks more
> limited and quite harder to use.
>
> Best regards,
The PIVOT clause would kick ass.