On 2013-02-16 11:55:26 -0800, David E. Wheeler wrote: > On Feb 16, 2013, at 8:57 AM, Andrew Dunstan <and...@dunslane.net> wrote: > > > I have had a look at doing something like this with the json_get functions. > > The trouble is that the best way to do it is to have json_get take > > "variadic any", but then string literals come in as unknown rather than as > > text, which makes things fairly ugly. If we force people to cast path > > elements to text then I think the cure is worse than the disease. I think > > the best we can do here is possibly to provide json_get and json_get_text > > taking either a single int or variadic text[], and json_get_path and > > json_get_path_text taking non-variadic text[]. > > Why not also one taking a single text? > > get(text) > get(int) > get(variadic text[])
Those aren't differentiable by their argument types. Why should json be able to claim that namespace and not other datatypes? Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
