Robert Haas <robertmh...@gmail.com> writes: > On Mon, May 9, 2011 at 11:32 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: >> So we basically had three alternatives to make it better: >> * downcast to the array type, which would possibly silently >> break applications that were relying on the function result >> being considered of the domain type >> * re-apply domain checks on the function result, which would be >> a performance hit and possibly again result in unobvious >> breakage >> * explicitly break it by throwing a parse error until you >> downcast (and then upcast the function result if you want) >> I realize that #3 is a bit unpleasant, but are either of the other two >> better? At least #3 shows you where you need to check for problems.
> Aren't any applications that would be broken by #1 broken already? My point is that doing #1 would break them *silently* --- if you did have a problem, figuring out what it was could require a great deal of sleuthing. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers