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

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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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