Hi 2017-12-26 8:23 GMT+01:00 Lelisa Diriba <lelisa0...@gmail.com>:
> In Ethiopia the year have 13 months and but in Gregorian calendar the year > have 12 months, > The Ethiopian society's are want to use his Ethiopian calendar year,i have > the algorithm, > but the way i add to the postgresql source code as EXTENSION? or to the > backend(to kernel)? > 13th month have 5 days and in fourth year 13th month have 6 days.that > means 1 year have 365.25 days,my algorithm converts Gregorian calendar > year to Ethiopian calendar year. > It can be done via extension - you should to implement own date and timestamp type with own input, output functions Regards Pavel
