Hello guys,
I've a couple of questions about composite type.
Suppose this composite type:
CREATE TYPE my_type AS (
user_ts_start My_start_timestamp,
user_ts_end My_end_timestamp,
user_ts_start My_start_timestamp,
user_ts_end My_end_timestamp,
db_ts_start My_start_timestamp,
db_ts_end My_end_timestamp,
audit_record jsonb
);
);
My_start_timestamp is a domain of timestamp with default as now().
My_end_timestamp is a domain of timestamp with default as infinite
- May I use user_ts_start and/or db_ts_start has part of Primary Key of a table that contains a field of my_type?
- to add an overall check constraint on the entire composite type, could be a valid approach to create a domain based on my_type and add a custom function to validate it? (check_my_type(VALUE)). In this way I've a dominan of composite type that contain others domain... what do you think?
thank's in advance
Domenico L.
per stupire mezz'ora basta un libro di storia,
io cercai di imparare la Treccani a memoria... [F.d.A.]
per stupire mezz'ora basta un libro di storia,
io cercai di imparare la Treccani a memoria... [F.d.A.]
