Re: Any function for calculating inersect of intervals?

Thank you Tom.

-----Original Message-----
From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
Sent: Monday, January 17, 2005 5:37 PM
To: Együd Csaba
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: [GENERAL] Any function for calculating inersect of intervals?

=?iso-8859-2?Q?Egy=FCd_Csaba?= <csegyud(at)vnet(dot)hu> writes:
> E.g. I have four dates (D1, D2, D3, D4) and I want to know if (D1,D2)
> intersects (D3,D4) or not.

See the OVERLAPS operator:
( start1, end1 ) OVERLAPS ( start2, end2 )
http://developer.postgresql.org/docs/postgres/functions-datetime.html

regards, tom lane

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