Re: proposal: row_to_array function

2015-01-16 22:35 GMT+01:00 Andrew Dunstan <andrew(at)dunslane(dot)net>:

>
> On 01/16/2015 12:22 PM, Pavel Stehule wrote:
>
>>
>>
>> There two possible transformations:
>>
>> row_to_array --> [[key1, value1],[key2, value2], ...]
>> row_to_row_array --> [(key1, value1), (key2, value2), ... ]
>>
>>
>> If we're going to go that route, I think it makes more sense to
>> create an actual key/value type (ie:
>> http://pgxn.org/dist/pair/doc/pair.html) and return an array of that.
>>
>>
>> ok
>>
>> <http://BlueTreble.com>
>>
>>
>
> I think we'd possibly be better off with simply returning a flat array,
> [key1, value1, ...]
>
> Thats's what the hstore(text[]) and json_object(text[]) functions accept,
> along with the 2D variant, if we want a precedent.
>

It can be one of supported variant. I should not be one, because we cannot
to simply iterate over it

Next possibility is teach FOREACH to take key and value in one step.

Regards

Pavel

>
> cheers
>
> andrew
>
>