Re: [SQL] Set Membership operator -- test group membership

Look contrib/intarray

On Tue, 14 Jun 2005, Sophie Yang wrote:

> Say I have a table tbl1 with two columns:
> tbl1(a integer, b integer, c integer)
>
> I want to select the rows in which a and b are members
> of a list of integer pairs. The SQL in my mind is
> something like:
> select * from tbl1 where (a, b) in ((1, 20), (2,
> 30), (3, 50));
>
> I know the SQL above does not work in PostgreSQL. I
> wonder what is the proper way to use in PostgreSQL. I
> tried "select * from tbl1 where (a, b) in ('{{1, 20},
> {2, 30}, {3, 50}}')", and it doesn't work either.
>
> Thanks!
> Sophie
>
>
>
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Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83