So which version of PostgreSQL have you got?
http://www.postgresql.org/docs/8.0/static/datatype-datetime.html
That says: "Note: Prior to PostgreSQL 7.3, writing just timestamp was
equivalent to timestamp with time zone. This was changed for SQL
compliance."
And later it gives examples of valid time zone input. The form 'XYZ'
appears to be supported, but not 'Abc/XYZ'.
On 26 Jan 2011, at 11:47, Theodore Petrosky wrote:
So I stopped guessing (or maybe bad guessing). Here is what I saw:
1. from my nslog:
qualifier=(invoiceBookedDate =
(com.webobjects.foundation.NSTimestamp)'2010-12-06 00:00:00
Etc/GMT'),
I know this date is good. I was querying the postgresql db from
psql with a select using that datestamp and I got rows of data. So
i looked at the postgresql logs and I notice that the actual date
passing into the query is:
'2010-12-05 00:00:00 Etc/GMT'
WT_???
So i didn't change anything but selected the next day in my app (in
this case '2010-07-01..' and voila it worked as expected (I got
good data and no error). And the date passed in the postgresql logs
said the 6th.
so why was I doing this:
theDate = theDate.timestampByAddingGregorianUnits(0, 0, 0, -5, 0, 0);
I did that because I kept seeing:
'2010-12-06 05:00:00 Etc/GMT' in my logs and I knew I was only
interested in the date (without timestamp) but I never figured out
how to only pass around dates without timestamps and everything was
working. I was subtracting the 5 hours and I didn't need to. (and
it was biting me in the backend.)
Postgresql supports dates without timestamp, I wish I knew how to
do this in webobject java. (But still call them dates so I can do
date math.)
So the error has nothing to do with my WOD. I am picking up the
JasperReports example from the WOWODC 2010 videos. I guess the
example has problems with a query returning no rows.
Now if I can only figure out how to pass an array from a previous
query to JasperReports I would be happier.
I have to go back to re-reading this plethora of documentation.
Thanks for your timely help.
Ted
---
Regards Patrick
OneStep Solutions (Research) LLP
www.onestep.co.uk
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