In response to Anton Gavazuk :
> Hi all,
>
> have such relation A:
>
> PERIOD_ID | DATE_START | DATE_END | OTHER_ATTRIBUTES...
> 1 | 01.01.2010 | 01.02.2010 ....
> 2 | 03.02.2010 | 04.03.2010 .....
> ......
>
> I want to search among periods for the set of periods which completely covers
> passed search period.
> As example - if I pass search period '15.01.2010 to 15.02.2010' the result set
> must be empty because there is gap between 01.02 and 03.02.
>
> please, suggest an idea how to implement this in SQL without writing a
> procedure.
There are a really nice additional contrib module from Jeff Davis,
described here:
http://thoughts.j-davis.com/2010/03/09/temporal-postgresql-roadmap/
Regards, Andreas
--
Andreas Kretschmer
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