Re: spi_query/spi_fetchrow for pl/perl

Patch applied.  Thanks.

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Abhijit Menon-Sen wrote:
> The attached patch implements spi_query() and spi_fetchrow() functions
> for PL/Perl, to avoid loading the entire result set into memory as the
> existing spi_exec_query() function does.
>
> Here's how one might use the new functions:
>
>     $x = spi_query("select ...");
>     while (defined ($y = spi_fetchrow($x))) {
>         ...
>         return_next(...);
>     }
>
> The changes do not affect the spi_exec_query() interface in any way.
>
> Comments welcome.
>
> -- ams

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