David Fetter wrote:
*** 716,724 ****
<listitem>
<para>
! In the current implementation, if you are fetching or returning
! very large data sets, you should be aware that these will all go
! into memory.
</para>
</listitem>
</itemizedlist>
--- 766,776 ----
<listitem>
<para>
! If you are fetching or returning very large data sets using
! <literal>spi_exec_query</literal>, you should be aware that
! these will all go into memory. You can avoid this by using
! <literal>spi_query</literal>/<literal>spi_fetchrow</literal> as
! illustrated earlier.
</para>
</listitem>
</itemizedlist>
You have rolled 2 problems into one - spi_query+spi_fetchrow does not
address the issue of returning large data sets.
Suggest instead:
<para>
If you are fetching very large data sets using
<literal>spi_exec_query</literal>, you should be aware that
these will all go into memory. You can avoid this by using
<literal>spi_query</literal> and <literal>spi_fetchrow</literal>
as illustrated earlier.
</para>
<para>
A similar problem occurs if a set-returning function passes
a large set of rows back to postgres via
<literal>return</literal>. You can avoid this
problem too by instead using <literal>return_next</literal> for
each row returned, as shown previously.
</para>
cheers
andrew
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