AN
CLASS="APPLICATION"
>dblink</SPAN
> fetches the entire
    remote query result before returning any of it to the local query
    processor.  If the query returns a large number of rows, this can result
    in transient memory bloat in the local session.  It may be better to open
    such a query as a cursor with <CODE
CLASS="FUNCTION"
>dblink_open</CODE
> and then fetch a
    manageable number of rows at a time.  Alternatively, use plain
    <CODE
CLASS="FUNCTION"
>dblink()</CODE
>, which avoids memory b