On 01/30/2012 07:00 AM, Anson Abraham wrote:
I an 9.1 PG database: I have a column which is a timestamp w/ time
zone. So the value I have as one record in table is: 15:55:24.342848+00
If i want to find records less or greater than that timestamp, how do
I construct the query?
select * from schema.table where tscol >= '15:55:24.342848+00';
select * from schema.table where tscol >= '15:55:24.342848+00'::timestamp;
select * from schema.table where tscol >= cast('15:55:24.342848+00' as
timestamp with time zone);
do not work. Do I have to convert the value to a string and substr to
15:55:24 and then convert back to a timestamp? It's been a long while
since I had to query a pg table w/ a timestamp with time zone value.
Any help here would be appreciated.
Those aren't timestamps - timestamps include the date part.
Perhaps you are thinking about a *time* with time zone (a type that
exists due to SQL requirements but which is a somewhat nonsensical type,
the use of which is not recommended):
http://www.postgresql.org/docs/9.1/static/datatype-datetime.html#DATATYPE-TIMEZONES
Cheers,
Steve
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