On 8/3/17 13:45, Robert Haas wrote: > On Thu, Aug 3, 2017 at 9:25 AM, Oliver Ford <ojf...@gmail.com> wrote: >> Adds to the to_number() function the ability to convert Roman numerals >> to a number. This feature is on the formatting.c TODO list. It is not >> currently implemented in either Oracle, MSSQL or MySQL so gives >> PostgreSQL an edge :-) > I kind of put my head in my hands when I saw this. I'm not really > sure it's worth complicating the code for something that has so little > practical utility, but maybe other people will feel differently.
I can't get excited about it. to_number() and such usually mirror the Oracle implementation, so having something that is explicitly not in Oracle goes a bit against its mission. One of the more interesting features of to_number/to_char is that it has a bunch of facilities for formatting decimal points, leading/trailing zeros, filling in spaces and signs, and so on. None of that applies naturally to Roman numerals, so there isn't a strong case for including that into these functions, when a separate function or module could do. There are probably a bunch of Perl or Python modules that can be employed for this. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers