2010/3/9 Merlin Moncure <mmonc...@gmail.com>:
> On Tue, Mar 9, 2010 at 9:30 AM, Pavel Stehule <pavel.steh...@gmail.com> wrote:
>> postgres=# select concat('ahaha',10,null,current_date, true);
>> concat
>> ------------------------
>> ahaha,10,,2010-03-09,t
>
> why are there commas in the output?
>
I though so comma can be default separator - but I see - it is wrong -
separator have to be empty string.
Pavel
> merlin
>
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