Date: Sat, 6 Oct 2012 09:44:10 +0200
From: Andreas Kretschmer <akretschmer@spamfence.net>
To: pgsql-sql@postgresql.org
Subject: Re: checking the gaps in intervals
Message-ID: <20121006074410.GA14079@tux>
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Anton Gavazuk <antongavazuk@gmail.com> wrote:

> Hi dear community,
> 
> Have probably quite simple task but cannot find the solution,
> 
> Imagine the table A with 2 columns start and end, data type is date
> 
> start          end
> 01 dec.     10 dec
> 11 dec.     13 dec
> 17 dec.     19 dec
> .....
> 
> If I have interval, for example, 12 dec-18 dec, how can I determine
> that the interval cannot be fully covered by values from table A
> because of the gap 14-16 dec? Looking for solution and unfortunately
> nothing has come to the mind yet...

I'm thinking about a solution with DATERANGE (PostgreSQL 9.2)...


Are start and end including or excluding?


Andreas
-- 
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"If I was god, I would recompile penguin with --enable-fly."   (unknown)
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