Re: Updatable cursors - applications?

Dave Page wrote:
> Does anyone know if there are any apps in existence that can be used as
> a good test of the updatable cursor functionality in the driver?
>
> Hiroshi; do you have a test app for this purpose?
>
> In case anyone is wondering about my recent obsession with updatable
> cursors, there is a patch from EnterpriseDB for PostgreSQL which offers
> some quite significant performance benefits, but it does change the way
> CTIDs work which the UC feature relies on.

The driver relies on the following.
1. TID scans i.e  SELECT/UPDATE/DELETE ... where CTID = ...
    are available.
2. The fucntions currtid(2) returns the latest tid  of the given tid.

Does the patch change the above behavior ?

regards,
Hiroshi Inoue