Re: Cursor Example Needed - Mailing list pgsql-general

From Merlin Moncure
Subject Re: Cursor Example Needed
Date
Msg-id CAHyXU0zwXsVwK9XVyfsEPmD+vPH-0Fo32j+diFf83HWUupvB-g@mail.gmail.com
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In response to Cursor Example Needed  (Perry Smith <pedzsan@gmail.com>)
Responses Re: Cursor Example Needed
List pgsql-general
On Mon, Oct 28, 2013 at 4:06 PM, Perry Smith <pedzsan@gmail.com> wrote:
> When I execute the SELECT statement directly I get:
>
> psql:table.sql:28: out of memory for query result

psql will do this automatically if you tell it to:
http://doginpool.blogspot.com/2011/11/retrieving-large-resultsets-from.html

cursors can work with your code, but they need participation from the
client side.  basically you stage the cursor then repeatedly FETCH
until done.

merlin


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