Justin <[EMAIL PROTECTED]> writes:
> Have a select statement with a where clause using datestamp with 
> timezone column compared to a date 

> Select * from sometable where DateStampColumn > '2008-03-31' 

> this returns records that are equal 2008-03-31

There's no such thing as "timestamp compared to date".  The date
promotes to a timestamp at midnight; what you wrote is equivalent
to

Select * from sometable where DateStampColumn > '2008-03-31 00:00:00' 

> but when the query includes casting to date
> Select * from sometable where DateStampColumn::date > '2008-03-31' 
> The result is correct

You threw away the intraday part of the timestamp...

                        regards, tom lane

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