Re: phone number list

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От Jeff Eckermann
Тема Re: phone number list
Дата
Msg-id 20030911141059.38762.qmail@web20804.mail.yahoo.com
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Ответ на Re: phone number list  (Adrian Holovaty <postgres@holovaty.com>)
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--- Adrian Holovaty <postgres@holovaty.com> wrote:
> Bryan Irvine wrote:
> > insert into phonenumbers values (425, 888, 0773);
> >
> > dncl=# select * from phonenumbers;
> >  areacode | prefix | suffix
> > ----------+--------+--------
> >  425      | 888    | 773
> >
> > Any ideas?  Do I need to change the format of the
> fields again?
>
> Put quotes around the values you're inserting, like
> this:
>
> INSERT INTO phonenumbers VALUES ('425', '888',
> '0773');

The general rule is, string values should be single
quoted, numbers should not be quoted.  What appears to
be happening here is that the input is being parsed as
a number (probably int4), then cast silently to
varchar before being inserted.

Considering the strictness that PostgreSQL generally
uses with datatypes, I am slightly stunned to witness
this behaviour.  I would have thought that at least a
notice was warranted, if not an outright error.

But: follow the "rules", and you'll be ok.

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