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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