On Mon, Jan 2, 2017 at 7:38 AM, Melvin Davidson <melvin6925(at)gmail(dot)com>
wrote:
>
>
> *Next, DO NOT begin object names with underscores.*
>
This is only a bit arbitrary (though I do subscribe to it)...naming custom
data types or tables with underscores is likely to introduce problems since
an implementation detail of PostgreSQL is that the array version of a given
type is named "_{type}" (e.g. _varchar).
David J.