On 12/18/2016 02:47 PM, Corey Huinker wrote:
> On Sun, Dec 18, 2016 at 4:57 PM, Michael Paquier wrote:
>> On Mon, Dec 19, 2016 at 6:48 AM, Joe Conway wrote:
>>> Maybe if "CREATE FOREIGN DATA WRAPPER" had a way to specify that the FDW
>>> supports a libpq connection it would make sense to allows other FDWs
>>> with this attribute, but since there is none the current state strikes
>>> me as a bad idea.
>>> Thoughts?

>> libpq is proper to the implementation of the FDW, not the wrapper on
>> top of it, so using in the CREATE FDW command a way to do the
>> decision-making that does not look right to me. Filtering things at
>> connection attempt is a better solution.

> The only benefit I see would be giving the user a slightly more clear
> error message like ('dblink doesn't work with %', 'mysql') instead of
> the error about the failure of the connect string generated by the
> options that did overlap. 

Ok, I committed Corey's patch with only minor whitespace changes.


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