Re: Why format() adds double quote?

> 2016-01-26 21:00 GMT+01:00 Daniel Verite <daniel@manitou-mail.org>:
> 
>>         Tatsuo Ishii wrote:
>>
>> > IMO, it's a bug or at least an inconsistency
>>
>> Personally I don't see this change being good for everything.
>>
>> Let's play devil's advocate:
>>
>> create table abc(U&"foo\2003" int);
>>
>> U+2003 is 'EM SPACE', in Unicode's General Punctuation block.
>>
>> With the current version, format('%I', attname) on this column is:
>> "foo "
>>
>> With the patched version, it produces this:
>> foo
>>
>> So the visual hint that there are more characters at the end is lost.
>>
> 
> I can agree, so current behave can be useful in some cases, but still it is
> bug (inconsistency) between PostgreSQL parser and PostgreSQL escaping
> functions.
> 
> Currently, any multibyte char can be unescaped identifier (only apostrophes
> are tested). We should to test white chars too.

Really? I thought we do that test.

test=# create table t6("あいう えお" int);
CREATE TABLE
test=# \d t6        Table "public.t6"  Column    |  Type   | Modifiers 
-------------+---------+-----------あいう えお | integer | 
--
Tatsuo Ishii
SRA OSS, Inc. Japan
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