Re: Why overlaps is not working - Mailing list pgsql-general

From William Leite Araújo
Subject Re: Why overlaps is not working
Date
Msg-id bc63ad820611090615j63f1dfadt500343cef6fa7959@mail.gmail.com
Whole thread Raw
In response to Re: Why overlaps is not working  ("Andrus" <eetasoft@online.ee>)
List pgsql-general


2006/11/9, Andrus <eetasoft@online.ee>:
> They're adjacent, they don't overlap. Check the documentation on OVERLAPS,
> I'm sure it's explicit about whether it is inclusive or exclusive (the
> latter apparently).

8.2 doc does not explain term overlap. It only says:

"This expression yields true when two time periods (defined by their
endpoints) overlap"

>> How to make overlaps to return correct result?
>
>  select 1 where ('2006-10-30'::date, '9999-12-31'::date) OVERLAPS
>     ('2006-10-16'::DATE, '2006-10-31':: DATE);

In real queries I have column names and parameters instead of data
constants.
The only way it seems to replace OVERLAPS operator with AND, OR, <=
operators.

Is it so ?

Andrus.

  Maybe:
    ('2006-10-16'::DATE BETWEEN '2006-10-30'::date AND '9999-12-31'::date) OR
    ('2006-10-31'::DATE BETWEEN '2006-10-30'::date AND '9999-12-31'::date)


--
William Leite Araújo

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