Re: WIP: to_char, support for EEEE format
От | Euler Taveira de Oliveira |
---|---|
Тема | Re: WIP: to_char, support for EEEE format |
Дата | |
Msg-id | 4A71D108.6020701@timbira.com обсуждение исходный текст |
Ответ на | Re: WIP: to_char, support for EEEE format (Brendan Jurd <direvus@gmail.com>) |
Список | pgsql-hackers |
Brendan Jurd escreveu: > 2009/7/31 Euler Taveira de Oliveira <euler@timbira.com>: >> Brendan Jurd escreveu: >>> Limiting to two exponent digits also has the nice property that the >>> output always matches the length of the format pattern: >>> >>> 9.99EEEE >>> 1.23E+02 >>> >> I don't think neglecting to represent a valid number is a "nice property". >> What does the length of format pattern have to do with output format? > > Most of the format patterns in to_char() are chosen to match the > length of their expected output. The output of "DD" is two > characters, "Mon" is three and so on. > Brendan, the main point of to_*() functions is Oracle-compatibility. So let's just do it. No matter it seems bizarre (like 999.99EEEE). > That's why the scientific notation pattern is "EEEE" and not just "E". > I don't know. Ask Oracle. ;) We don't need to bother with that. Let's just be compatible. -- Euler Taveira de Oliveira http://www.timbira.com/
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