date comparisons

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От Belinda M. Giardine
Тема date comparisons
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Msg-id Pine.GSO.4.53.0612121125220.28737@galapagos.bx.psu.edu
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Ответы Re: date comparisons  (Erik Jones <erik@myemma.com>)
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This should be simple but I am missing something.  I am trying to extract
all records entered after a given date.  The table has a field
date_entered which is a timestamp.  In this particular case I am not
worried about time.

I have tried:
select id from main_table where
date_entered > to_timestamp('January 2006', 'Month YYYY');

select id from main_table where
(to_timestamp('January 2006', 'Month YYYY'), now()) overlaps (date_entered, date_entered);

Both of these return all the rows in the table.  Half of the rows are
dated 2000-06-22 12:00:00.

PostgreSQL version 8.1.4

What am I missing?
Belinda

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