Re: WIP: to_char, support for EEEE format - Mailing list pgsql-hackers

From Euler Taveira de Oliveira
Subject Re: WIP: to_char, support for EEEE format
Date
Msg-id 4A71D108.6020701@timbira.com
Whole thread Raw
In response to Re: WIP: to_char, support for EEEE format  (Brendan Jurd <direvus@gmail.com>)
List 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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