Squirrel does not support tuples. You could rewrite the query with Or and Eq:

sq.Or{sq.Eq{"name": "Alex", "age": 10}, sq.Eq{"name": "Douglas", "age": 40}}

If you have a fixed number of tuples in your IN clause, you could also write it with Expr:

Expr("((name, age)) IN ((?, ?), (?, ?))", "Alex", 10, "Douglas", 40)

(examples untested)

Closing because @lann's comment is sufficient to solve my issue

sq.Or{sq.Eq{"name": "Alex", "age": 10}, sq.Eq{"name": "Douglas", "age": 40}}

If you need dynamic list of conditions sq.Or{} is an array. May be it will save your time :)

some := sq.Or{}
for _, data := range dataList {
  some = append(some, sq.Eq{"key1": data.Value1, "key2": data.Value2})
}
squirrel.Select(*).From("table").Where(some)
// SELECT * FROM table WHERE (key1 = $1 AND key2 = $2 OR key1 = $3 AND key2 = $4)

If you need dynamic list of conditions sq.Or{} is an array. May be it will save your time :)

some := sq.Or{}
for _, data := range dataList {
  some = append(some, sq.Eq{"key1": data.Value1, "key2": data.Value2})
}
squirrel.Select(*).From("table").Where(some)
// SELECT * FROM table WHERE (key1 = $1 AND key2 = $2 OR key1 = $3 AND key2 = $4)

Thank you,
The idea is correect, but the result is not the same because "AND" has bigger priority than "OR", so in your example need to change "sq.Eq" to "sq.And"

an example from my code

	pkConditions := sq.Or{}

	for pkIdx := 0; pkIdx < len(primaryKeys); pkIdx   {
		pk := primaryKeys[pkIdx]

		pkConditions = append(pkConditions, sq.And{
			sq.Eq{"c.location_uid": pk.LocationUID},
			sq.Eq{"c.shipment_provider_uid": pk.ShipmentProviderUID},
			sq.Eq{"c.shipment_method_uid": pk.ShipmentMethodUID},
		})
	}

	q = q.Where(pkConditions)