[postgis-devel] Aggregate STYPE

[Regina Obe]

>> 
>> What mechanism? There's no "alter aggregate" that will change the 
>> stype, are you thinking of the system catalogs?

> I'm not brave enough to think at this moment :)

> --strk;

But when you are brave enough you are going to muck with the system catalogs
Like we did to shoe-horn parallel safe in the ST_Union aggregate without having to drop it.

Or that time when we changed pgis_abs internal length