On 2015-03-25 12:32, Craig Ringer wrote:
> On 25 March 2015 at 19:15, Peter Mogensen <apm(at)one(dot)com> wrote:
>
>> Say ... I have a table in a BDR replicated database with an "ON UPDATE"
>> trigger. - and that trigger wants to locally find out the local
>> txid_snapshot_xmin() when a change was applied to the local node.
>>
> Why would you want to do that? Just out of interest?
>
>
Because I have a bunch of SELECT queries to the local node, which
includes the txid_current() in their result, and I want to be able to
recognize a result which was obtained prior to a change reaching the
local node.
/Peter