Re: Can the backend return more than one error message per PQexec?
| От | Tom Lane |
|---|---|
| Тема | Re: Can the backend return more than one error message per PQexec? |
| Дата | |
| Msg-id | 24513.991842858@sss.pgh.pa.us обсуждение |
| Ответ на | Re: Can the backend return more than one error message per PQexec? (Peter Eisentraut <peter_e@gmx.net>) |
| Ответы |
Re: Can the backend return more than one error message
per PQexec?
|
| Список | pgsql-hackers |
Peter Eisentraut <peter_e@gmx.net> writes:
> Tom Lane writes:
>> One way to do this that wouldn't involve breaking the protocol is
>> to assign significance to linebreaks in an 'E' message's payload.
> Some fields may contain line breaks; for example, error messages
> definitely do now.
Yes. I believe most of them are set up to indent the continuation
lines, so there wouldn't be much of a problem interpreting the format.
In any case, we could say that only a line beginning with a known
keyword starts a new field.
> Okay, so PQerrorMessage will print the whole glob, whereas there would be
> an accessor method that would filter out the fields. That would also work
> transparently with the notice processor, which I was concerned about until
> now. I like it.
Works for me.
regards, tom lane
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