Re: expert : SRF returning double[]

another auto-answer :

Suprisingly ,

result = construct_array(...)
SRF_RETURN_NEXT(funcctx, PointerGetDatum(result));

But Datum memory must be allocated

Cheers,

Rémi-C

2014/1/16 Rémi Cura <remi(dot)cura(at)gmail(dot)com>

> Hey list,
>
> another tricky C function interface problem :
>
> How to write a set returning function, that returns for each row an array?
>
> it seems like the main function SRF_RETURN_NEXT takes Datum and so I can't
> use PG_RETURN_ARRAYTYPE_P().
>
> Shall I encapsulate the array into a composite field (only 1 field : the
> double array)
>
> I looked a lot for an example wihtout success.
>
> Help greatly appreciated,
>
> thanks,
>
> Cheers,
> Rémi-C
>