I've been slowly exploring adapting TIMESTAMP WITH TIME ZONE with our product and tonight did an initial test ALTERing a number of existing TIMESTAMP columns over. Our product immediately failed with the following error:
Cannot convert timestamp with time zone to a numeric
The SQL behind it appears to be: "select max(LastChanged) from dba.LocalSettings"
This command succeeds if I substitute "cast(LastChanged as timestamp)" but that kinda defeats the purpose. Is this intentional? The help files seem rather silent on how operations that succeed on timestamps would fail on timestamp-with-time-zone, some places even suggest that it would degrade to a simple timestamp when necessary.
If timestamp-with-time-zone is such a different animal from simple-timestamp then this is going to be a much more painful migration...
select @@version == 184.108.40.20606
asked 01 Feb '12, 21:35
This issue was fixed last November in 220.127.116.1104
You will need to download and apply a recent EBF.
answered 01 Feb '12, 23:27