CountableRange
struct CountableRange<Bound> : RandomAccessCollection where Bound : Comparable, Bound : _Strideable, Bound.Stride : SignedInteger
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An SQL expression that checks the inclusion of an expression in a range.
// id BETWEEN 1 AND 9 (1..<10).contains(Column("id"))Declaration
Swift
public func contains(_ element: SQLSpecificExpressible) -> SQLExpression 
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        CountableRange Extension Reference