[HACKERS] What are the advantages of not being able to access multiple databases with one connection?

MySQL permits a connection to access multiple databases. But Postgresql restricts a connection to one database. I think postgresql database connection is somewhat limited. Is it an old and decrepit design? or does it deserve some appreciations? -- Sent via pgsql-hackers mailing list

[HACKERS] Is there any plan to add unsigned integer types?

MySQL already has unsigned INT type, and it has double the range of signed INT type. It's not just the bigger range that UINT type brings. If unsigned INT type exists, I wouldn't have to execute create domain UINT in every database. If INT unsigned and SERIAL unsigned exist, PostgreSQL would