Обсуждение: too many dotted names

Hi,

Does it make sense to treat these ?

ALTER TABLE "s'd"".s'd"""."s's'd""." ADD COLUMN id bigint DEFAULT
nextval('"s''d".s''d""."s''d".d"s''"');

ERROR: improper relation name (too many dotted names): s'd.s'd"".s'd.d"s'"
SQL state: 42601

PostgreSQL 9.1devel on i686-pc-linux-gnu, compiled by GCC gcc
(Ubuntu/Linaro 4.5.1-7ubuntu2) 4.5.1, 32-bit

Best regards,
Vladimir Kokovic, DP senior, Belgrade, Serbia

On Wed, Apr 6, 2011 at 4:23 PM, Vladimir Kokovic
<vladimir.kokovic@gmail.com> wrote:
> Hi,
>
> Does it make sense to treat these ?
>
> ALTER TABLE "s'd"".s'd"""."s's'd""." ADD COLUMN id bigint DEFAULT
> nextval('"s''d".s''d""."s''d".d"s''"');
>
> ERROR: improper relation name (too many dotted names): s'd.s'd"".s'd.d"s'"
> SQL state: 42601

Treat them as what?

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

On 4/7/11, Robert Haas <robertmhaas@gmail.com> wrote:
> On Wed, Apr 6, 2011 at 4:23 PM, Vladimir Kokovic
> <vladimir.kokovic@gmail.com> wrote:
>> Hi,
>>
>> Does it make sense to treat these ?
>>
>> ALTER TABLE "s'd"".s'd"""."s's'd""." ADD COLUMN id bigint DEFAULT
>> nextval('"s''d".s''d""."s''d".d"s''"');
>>
>> ERROR: improper relation name (too many dotted names): s'd.s'd"".s'd.d"s'"
>> SQL state: 42601
>
> Treat them as what?

Even nextval('"s''d".s''d""."s''d".d"s''"') is correct literal,
PostgreSQL parser treats them like error.

I think that only solution is to prohibit ". (double quote and dot) to
be part of schema or sequence name.

Best regards,
Vladimir Kokovic, DP senior, Belgrade, Serbia

Vladimir Kokovic <vladimir.kokovic@gmail.com> writes:
> On 4/7/11, Robert Haas <robertmhaas@gmail.com> wrote:
>> On Wed, Apr 6, 2011 at 4:23 PM, Vladimir Kokovic
>> <vladimir.kokovic@gmail.com> wrote:
>>> ALTER TABLE "s'd"".s'd"""."s's'd""." ADD COLUMN id bigint DEFAULT
>>> nextval('"s''d".s''d""."s''d".d"s''"');
>>> ERROR: improper relation name (too many dotted names): s'd.s'd"".s'd.d"s'"

>> Treat them as what?

> Even nextval('"s''d".s''d""."s''d".d"s''"') is correct literal,

Really?  According to whom?  This works for me:

regression=# create schema "s'd"".s'd""";
CREATE SCHEMA
regression=# create table "s'd"".s'd"""."s's'd""." (f1 int);
CREATE TABLE
regression=# create sequence "s'd"".s'd"""."s's'd"".s" ;       
CREATE SEQUENCE
regression=# ALTER TABLE "s'd"".s'd"""."s's'd""." ADD COLUMN id bigint DEFAULT
nextval('"s''d"".s''d"""."s''s''d"".s"');    
 
ALTER TABLE

I think you've made up some theory about how to quote funny characters
in nextval's argument, and it's a wrong theory.  You have to double
single quotes because you're writing a string literal, but other than
that it should look just like a quoted identifier in SQL.
        regards, tom lane