On 09/03/2017 03:34 PM, Tom Lane wrote:
> Joe Conway <mail(at)joeconway(dot)com> writes:
>> Notice that tsr is not empty at all on the first loop, but on the second
>> loop it is empty every second time the trigger fires.
>
> I think the issue is that now() isn't changing within the transaction,
> so when you construct "tstzrange(lower(OLD.tr), now(), '[)')" using an
> old row whose "lower(OLD.tr)" is already "now()", you get an empty range.
> Probably using '[]' bounds would avoid the oddness.
Hmmm, good point. Sorry for the noise.
Joe
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