Re: proposal: psql \setfileref

2016-10-09 19:14 GMT+02:00 Corey Huinker <corey(dot)huinker(at)gmail(dot)com>:

> On Sun, Oct 9, 2016 at 12:12 PM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
> wrote:
>
>>
>>
>> 2016-10-09 17:27 GMT+02:00 Corey Huinker <corey(dot)huinker(at)gmail(dot)com>:
>>
>>> here is new update - some mentioned issues are fixed + regress tests and
>>>>> docs
>>>>>
>>>>
>>>>
>>>>
>>> This might tie into some work I'm doing. Is there any way these filerefs
>>> could be used as the inline portion of a COPY command?
>>> i.e. like this:
>>>
>>> COPY my_table FROM STDIN
>>> :file_ref
>>> \.
>>>
>>>
>>>
>> I understand, but I am not sure how difficult implementation it is. This
>> part (COPY input) doesn't support parametrization - and parametrization can
>> have a negative performance impact.
>>
>> Regards
>>
>
>
> I may not understand your response. I was thinking we'd want :file_ref to
> simply 'cat' the file (or program) in place. The fact that the output was
> consumed by COPY was coincidental. Does that chance your response?
>

look to code - some parts allows psql session variables, some not - I can
use variables in statements - not in data block.

More, there is ambiguity - :xxx should not be part of SQL statement (and
then psql variables are possible), but :xxxx should be part of data.

Regards

Pavel

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