I'm not sure how Temperature and Humidity are related as types beyond
"extends float". i.e. What tuple definition could alternatively have a
Temp or a Humidity value? (I do understand their physical relationship :) )
Gianvito Pio wrote:
Hi all,
I just want to ask you if it's possible to define sub types in
PostgreSQL (Type inheritance). I found that table inheritance is
possible...but I'd like to do it on types.
Example:
define a type Value and two subtypes Temperature and Humidity and then
define a table that has an attribute of Value type (that can accept
both specialized types).
Thanks
--
Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-sql
