Re: patch for 9.2: enhanced errors

Hello

this is a refreshed patch. Only constraints and RI is supported now.
There is about 1000 ereport calls, where a enhanced diagnostics should
be used, but probably we don't modify all in one time.

Regards

Pavel Stehule

2011/7/19 Alvaro Herrera <alvherre(at)commandprompt(dot)com>:
> Excerpts from Pavel Stehule's message of lun jul 18 16:02:43 -0400 2011:
>> 2011/7/18 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
>
>> > which suggests that it might be meant *only* for use with
>> > INSUFFICIENT_PRIVILEGE errors that are thrown due to a column ACL.
>> > We can probably extend that to some other syntax errors, like unknown
>> > column or wrong datatype or what have you, but there is nothing here to
>> > suggest that we have to force the issue for errors that don't naturally
>> > relate to exactly one column.  And CHECK constraints don't.  Consider
>> > "CHECK (f1 > f2)".
>>
>> ok, this is relative clean, but
>>
>> so for example, NULL or DOMAIN constraints doesn't affect a
>> COLUMN_NAME? These constraints has no name.
>
> I dunno about domains, but NOT NULL constraints definitely have names
> according to the standard (and will have them in PG soon enough).
>
> Hmm, domain constraints are CHECK or NOT NULL, and both of them have or
> will have names.
>
> --
> Álvaro Herrera <alvherre(at)commandprompt(dot)com>
> The PostgreSQL Company - Command Prompt, Inc.
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