Thak you Alban, Tom's solution (OVERLAPS) is the best for me.
bye,
-- Csaba
-----Original Message-----
From: pgsql-general-owner@postgresql.org
[mailto:pgsql-general-owner@postgresql.org] On Behalf Of Alban Hertroys
Sent: Monday, January 17, 2005 5:49 PM
To: Együd Csaba
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Any function for calculating inersect of intervals?
Együd Csaba wrote:
> Hi,
> wondering if exists any functions which aim to calculate intersect of
> two intervals.
> E.g. I have four dates (D1, D2, D3, D4) and I want to know if (D1,D2)
> intersects (D3,D4) or not.
Try INTERSECTS :P
SELECT * FROM table WHERE (D1, D2) INTERSECTS (D3, D4);
Related, are there any operators/functions to test for adjacency (start of
one is end of other), inclusion (interval is inside other interval) or
wrapping (the inverse; interval is around other interval) of intervals?
Alban.
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